Morphision: A method for subjective evaluation of metamorphopsia in patients with unilateral macular pathology (i.e., full thickness macular hole and epiretinal membrane)
Background: Lack of clinical tests to quantify spatial components of distortion in patients with full thickness macular holes (FTMH) and epiretinal membranes (ERM). Aim: To develop a test for subjective evaluation of visual distortion in the central visual field around fixation in patients with unil...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Marta Ugarte [verfasserIn] Manoharan Shunmugam [verfasserIn] D Alistair H Laidlaw [verfasserIn] Tom H Williamson [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2013 |
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| Schlagwörter: |
flash visual evoked potentials stimulation frequency in visual evoked potentials cytomegalovirus retinitis retinal detachment highly active antiretroviral therapy |
|---|
| Übergeordnetes Werk: |
In: Indian Journal of Ophthalmology - Wolters Kluwer Medknow Publications, 2005, 61(2013), 11, Seite 653-658 |
|---|---|
| Übergeordnetes Werk: |
volume:61 ; year:2013 ; number:11 ; pages:653-658 |
| Links: |
Link aufrufen |
|---|
| DOI / URN: |
10.4103/0301-4738.117804 |
|---|
| Katalog-ID: |
DOAJ042918243 |
|---|
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| 245 | 1 | 0 | |a Morphision: A method for subjective evaluation of metamorphopsia in patients with unilateral macular pathology (i.e., full thickness macular hole and epiretinal membrane) |
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| 520 | |a Background: Lack of clinical tests to quantify spatial components of distortion in patients with full thickness macular holes (FTMH) and epiretinal membranes (ERM). Aim: To develop a test for subjective evaluation of visual distortion in the central visual field around fixation in patients with unilateral FTMH or ERM. Settings and Design: Prospective case-control study carried out at tertiary referral center. Materials and Methods: Twenty-five patients with unilateral macular disease (13 macular epiretinal membranes, 12 full-thickness macular holes), and nine controls (without ocular pathology) underwent ophthalmological examination with logMAR ETDRS visual acuity, near vision and contrast sensitivity assessed. Macular optical coherence tomography and metamorphopsia assessment using Morphision test was also carried out. This test consists of a set of modified Amsler charts for detection, identification, and subjective quantification of visual distortion in the central visual field around fixation. Morphision test content and construct validity, and reliability (test-retest method) were evaluated. Sixteen patients completed an unstructured survey on test performance and preference. Results: Every patient with unilateral FTMH or ERM identified a particular chart using Morphision test (content validity). None of the normal subjects without symptoms of metamorphopsia identified any distortion (construct validity). Test-retest showed a 100% consistency for frequency and 67% for amplitude. The mean amplitude difference between measurements was 0.02 degrees (SD = 0.038). The coefficient of repeatability was 0.075. There was a correlation between Morphision amplitude score and visual acuity and contrast sensitivity, individually. Conclusions: Morphision test allowed detection and subjective quantification of metamorphopsia in the clinical setting in our patients with unilateral macular epiretinal membranes and full thickness macular holes. | ||
| 650 | 4 | |a Anterior segment parameter | |
| 650 | 4 | |a pars plana vitrectomy | |
| 650 | 4 | |a pentacam | |
| 650 | 4 | |a silicone oil injection | |
| 650 | 4 | |a Astigmatism | |
| 650 | 4 | |a cataract surgery | |
| 650 | 4 | |a toric lens | |
| 650 | 4 | |a toric intraocular lens | |
| 650 | 4 | |a Amblyopia | |
| 650 | 4 | |a anisometropia | |
| 650 | 4 | |a occlusion | |
| 650 | 4 | |a recurrence | |
| 650 | 4 | |a visual acuity | |
| 650 | 4 | |a Cortical visual impairment | |
| 650 | 4 | |a flash visual evoked potentials | |
| 650 | 4 | |a periventricular leucomalacia | |
| 650 | 4 | |a stimulation frequency in visual evoked potentials | |
| 650 | 4 | |a visual evoked potentials | |
| 650 | 4 | |a Cytomegalovirus retinitis | |
| 650 | 4 | |a cytomegalovirus retinitis retinal detachment | |
| 650 | 4 | |a cytomegalovirus | |
| 650 | 4 | |a highly active antiretroviral therapy | |
| 650 | 4 | |a Incidence | |
| 650 | 4 | |a postnatal weight gain | |
| 650 | 4 | |a retinopathy of prematurity | |
| 650 | 4 | |a risk factors | |
| 650 | 4 | |a weight gain proportion | |
| 650 | 4 | |a Nasal incision | |
| 650 | 4 | |a surgically induced astigmatism | |
| 650 | 4 | |a temporal incision | |
| 650 | 4 | |a Mantoux test | |
| 650 | 4 | |a serpiginous choroiditis | |
| 650 | 4 | |a tuberculosis | |
| 650 | 4 | |a Distortion | |
| 650 | 4 | |a epiretinal membrane | |
| 650 | 4 | |a macular hole | |
| 650 | 4 | |a metamorphopsia | |
| 650 | 4 | |a morphision | |
| 653 | 0 | |a Ophthalmology | |
| 700 | 0 | |a Manoharan Shunmugam |e verfasserin |4 aut | |
| 700 | 0 | |a D Alistair H Laidlaw |e verfasserin |4 aut | |
| 700 | 0 | |a Tom H Williamson |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i In |t Indian Journal of Ophthalmology |d Wolters Kluwer Medknow Publications, 2005 |g 61(2013), 11, Seite 653-658 |w (DE-627)485243563 |w (DE-600)2185999-1 |x 19983689 |7 nnns |
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10.4103/0301-4738.117804 doi (DE-627)DOAJ042918243 (DE-599)DOAJ88b7a568acfa4649875017ea5d279da4 DE-627 ger DE-627 rakwb eng RE1-994 Marta Ugarte verfasserin aut Morphision: A method for subjective evaluation of metamorphopsia in patients with unilateral macular pathology (i.e., full thickness macular hole and epiretinal membrane) 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Lack of clinical tests to quantify spatial components of distortion in patients with full thickness macular holes (FTMH) and epiretinal membranes (ERM). Aim: To develop a test for subjective evaluation of visual distortion in the central visual field around fixation in patients with unilateral FTMH or ERM. Settings and Design: Prospective case-control study carried out at tertiary referral center. Materials and Methods: Twenty-five patients with unilateral macular disease (13 macular epiretinal membranes, 12 full-thickness macular holes), and nine controls (without ocular pathology) underwent ophthalmological examination with logMAR ETDRS visual acuity, near vision and contrast sensitivity assessed. Macular optical coherence tomography and metamorphopsia assessment using Morphision test was also carried out. This test consists of a set of modified Amsler charts for detection, identification, and subjective quantification of visual distortion in the central visual field around fixation. Morphision test content and construct validity, and reliability (test-retest method) were evaluated. Sixteen patients completed an unstructured survey on test performance and preference. Results: Every patient with unilateral FTMH or ERM identified a particular chart using Morphision test (content validity). None of the normal subjects without symptoms of metamorphopsia identified any distortion (construct validity). Test-retest showed a 100% consistency for frequency and 67% for amplitude. The mean amplitude difference between measurements was 0.02 degrees (SD = 0.038). The coefficient of repeatability was 0.075. There was a correlation between Morphision amplitude score and visual acuity and contrast sensitivity, individually. Conclusions: Morphision test allowed detection and subjective quantification of metamorphopsia in the clinical setting in our patients with unilateral macular epiretinal membranes and full thickness macular holes. Anterior segment parameter pars plana vitrectomy pentacam silicone oil injection Astigmatism cataract surgery toric lens toric intraocular lens Amblyopia anisometropia occlusion recurrence visual acuity Cortical visual impairment flash visual evoked potentials periventricular leucomalacia stimulation frequency in visual evoked potentials visual evoked potentials Cytomegalovirus retinitis cytomegalovirus retinitis retinal detachment cytomegalovirus highly active antiretroviral therapy Incidence postnatal weight gain retinopathy of prematurity risk factors weight gain proportion Nasal incision surgically induced astigmatism temporal incision Mantoux test serpiginous choroiditis tuberculosis Distortion epiretinal membrane macular hole metamorphopsia morphision Ophthalmology Manoharan Shunmugam verfasserin aut D Alistair H Laidlaw verfasserin aut Tom H Williamson verfasserin aut In Indian Journal of Ophthalmology Wolters Kluwer Medknow Publications, 2005 61(2013), 11, Seite 653-658 (DE-627)485243563 (DE-600)2185999-1 19983689 nnns volume:61 year:2013 number:11 pages:653-658 https://doi.org/10.4103/0301-4738.117804 kostenfrei https://doaj.org/article/88b7a568acfa4649875017ea5d279da4 kostenfrei http://www.ijo.in/article.asp?issn=0301-4738;year=2013;volume=61;issue=11;spage=653;epage=658;aulast=Ugarte kostenfrei https://doaj.org/toc/0301-4738 Journal toc kostenfrei https://doaj.org/toc/1998-3689 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 61 2013 11 653-658 |
| spelling |
10.4103/0301-4738.117804 doi (DE-627)DOAJ042918243 (DE-599)DOAJ88b7a568acfa4649875017ea5d279da4 DE-627 ger DE-627 rakwb eng RE1-994 Marta Ugarte verfasserin aut Morphision: A method for subjective evaluation of metamorphopsia in patients with unilateral macular pathology (i.e., full thickness macular hole and epiretinal membrane) 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Lack of clinical tests to quantify spatial components of distortion in patients with full thickness macular holes (FTMH) and epiretinal membranes (ERM). Aim: To develop a test for subjective evaluation of visual distortion in the central visual field around fixation in patients with unilateral FTMH or ERM. Settings and Design: Prospective case-control study carried out at tertiary referral center. Materials and Methods: Twenty-five patients with unilateral macular disease (13 macular epiretinal membranes, 12 full-thickness macular holes), and nine controls (without ocular pathology) underwent ophthalmological examination with logMAR ETDRS visual acuity, near vision and contrast sensitivity assessed. Macular optical coherence tomography and metamorphopsia assessment using Morphision test was also carried out. This test consists of a set of modified Amsler charts for detection, identification, and subjective quantification of visual distortion in the central visual field around fixation. Morphision test content and construct validity, and reliability (test-retest method) were evaluated. Sixteen patients completed an unstructured survey on test performance and preference. Results: Every patient with unilateral FTMH or ERM identified a particular chart using Morphision test (content validity). None of the normal subjects without symptoms of metamorphopsia identified any distortion (construct validity). Test-retest showed a 100% consistency for frequency and 67% for amplitude. The mean amplitude difference between measurements was 0.02 degrees (SD = 0.038). The coefficient of repeatability was 0.075. There was a correlation between Morphision amplitude score and visual acuity and contrast sensitivity, individually. Conclusions: Morphision test allowed detection and subjective quantification of metamorphopsia in the clinical setting in our patients with unilateral macular epiretinal membranes and full thickness macular holes. Anterior segment parameter pars plana vitrectomy pentacam silicone oil injection Astigmatism cataract surgery toric lens toric intraocular lens Amblyopia anisometropia occlusion recurrence visual acuity Cortical visual impairment flash visual evoked potentials periventricular leucomalacia stimulation frequency in visual evoked potentials visual evoked potentials Cytomegalovirus retinitis cytomegalovirus retinitis retinal detachment cytomegalovirus highly active antiretroviral therapy Incidence postnatal weight gain retinopathy of prematurity risk factors weight gain proportion Nasal incision surgically induced astigmatism temporal incision Mantoux test serpiginous choroiditis tuberculosis Distortion epiretinal membrane macular hole metamorphopsia morphision Ophthalmology Manoharan Shunmugam verfasserin aut D Alistair H Laidlaw verfasserin aut Tom H Williamson verfasserin aut In Indian Journal of Ophthalmology Wolters Kluwer Medknow Publications, 2005 61(2013), 11, Seite 653-658 (DE-627)485243563 (DE-600)2185999-1 19983689 nnns volume:61 year:2013 number:11 pages:653-658 https://doi.org/10.4103/0301-4738.117804 kostenfrei https://doaj.org/article/88b7a568acfa4649875017ea5d279da4 kostenfrei http://www.ijo.in/article.asp?issn=0301-4738;year=2013;volume=61;issue=11;spage=653;epage=658;aulast=Ugarte kostenfrei https://doaj.org/toc/0301-4738 Journal toc kostenfrei https://doaj.org/toc/1998-3689 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 61 2013 11 653-658 |
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10.4103/0301-4738.117804 doi (DE-627)DOAJ042918243 (DE-599)DOAJ88b7a568acfa4649875017ea5d279da4 DE-627 ger DE-627 rakwb eng RE1-994 Marta Ugarte verfasserin aut Morphision: A method for subjective evaluation of metamorphopsia in patients with unilateral macular pathology (i.e., full thickness macular hole and epiretinal membrane) 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Lack of clinical tests to quantify spatial components of distortion in patients with full thickness macular holes (FTMH) and epiretinal membranes (ERM). Aim: To develop a test for subjective evaluation of visual distortion in the central visual field around fixation in patients with unilateral FTMH or ERM. Settings and Design: Prospective case-control study carried out at tertiary referral center. Materials and Methods: Twenty-five patients with unilateral macular disease (13 macular epiretinal membranes, 12 full-thickness macular holes), and nine controls (without ocular pathology) underwent ophthalmological examination with logMAR ETDRS visual acuity, near vision and contrast sensitivity assessed. Macular optical coherence tomography and metamorphopsia assessment using Morphision test was also carried out. This test consists of a set of modified Amsler charts for detection, identification, and subjective quantification of visual distortion in the central visual field around fixation. Morphision test content and construct validity, and reliability (test-retest method) were evaluated. Sixteen patients completed an unstructured survey on test performance and preference. Results: Every patient with unilateral FTMH or ERM identified a particular chart using Morphision test (content validity). None of the normal subjects without symptoms of metamorphopsia identified any distortion (construct validity). Test-retest showed a 100% consistency for frequency and 67% for amplitude. The mean amplitude difference between measurements was 0.02 degrees (SD = 0.038). The coefficient of repeatability was 0.075. There was a correlation between Morphision amplitude score and visual acuity and contrast sensitivity, individually. Conclusions: Morphision test allowed detection and subjective quantification of metamorphopsia in the clinical setting in our patients with unilateral macular epiretinal membranes and full thickness macular holes. Anterior segment parameter pars plana vitrectomy pentacam silicone oil injection Astigmatism cataract surgery toric lens toric intraocular lens Amblyopia anisometropia occlusion recurrence visual acuity Cortical visual impairment flash visual evoked potentials periventricular leucomalacia stimulation frequency in visual evoked potentials visual evoked potentials Cytomegalovirus retinitis cytomegalovirus retinitis retinal detachment cytomegalovirus highly active antiretroviral therapy Incidence postnatal weight gain retinopathy of prematurity risk factors weight gain proportion Nasal incision surgically induced astigmatism temporal incision Mantoux test serpiginous choroiditis tuberculosis Distortion epiretinal membrane macular hole metamorphopsia morphision Ophthalmology Manoharan Shunmugam verfasserin aut D Alistair H Laidlaw verfasserin aut Tom H Williamson verfasserin aut In Indian Journal of Ophthalmology Wolters Kluwer Medknow Publications, 2005 61(2013), 11, Seite 653-658 (DE-627)485243563 (DE-600)2185999-1 19983689 nnns volume:61 year:2013 number:11 pages:653-658 https://doi.org/10.4103/0301-4738.117804 kostenfrei https://doaj.org/article/88b7a568acfa4649875017ea5d279da4 kostenfrei http://www.ijo.in/article.asp?issn=0301-4738;year=2013;volume=61;issue=11;spage=653;epage=658;aulast=Ugarte kostenfrei https://doaj.org/toc/0301-4738 Journal toc kostenfrei https://doaj.org/toc/1998-3689 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 61 2013 11 653-658 |
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RE1-994 Morphision: A method for subjective evaluation of metamorphopsia in patients with unilateral macular pathology (i.e., full thickness macular hole and epiretinal membrane) Anterior segment parameter pars plana vitrectomy pentacam silicone oil injection Astigmatism cataract surgery toric lens toric intraocular lens Amblyopia anisometropia occlusion recurrence visual acuity Cortical visual impairment flash visual evoked potentials periventricular leucomalacia stimulation frequency in visual evoked potentials visual evoked potentials Cytomegalovirus retinitis cytomegalovirus retinitis retinal detachment cytomegalovirus highly active antiretroviral therapy Incidence postnatal weight gain retinopathy of prematurity risk factors weight gain proportion Nasal incision surgically induced astigmatism temporal incision Mantoux test serpiginous choroiditis tuberculosis Distortion epiretinal membrane macular hole metamorphopsia morphision |
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morphision: a method for subjective evaluation of metamorphopsia in patients with unilateral macular pathology (i.e., full thickness macular hole and epiretinal membrane) |
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Morphision: A method for subjective evaluation of metamorphopsia in patients with unilateral macular pathology (i.e., full thickness macular hole and epiretinal membrane) |
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Background: Lack of clinical tests to quantify spatial components of distortion in patients with full thickness macular holes (FTMH) and epiretinal membranes (ERM). Aim: To develop a test for subjective evaluation of visual distortion in the central visual field around fixation in patients with unilateral FTMH or ERM. Settings and Design: Prospective case-control study carried out at tertiary referral center. Materials and Methods: Twenty-five patients with unilateral macular disease (13 macular epiretinal membranes, 12 full-thickness macular holes), and nine controls (without ocular pathology) underwent ophthalmological examination with logMAR ETDRS visual acuity, near vision and contrast sensitivity assessed. Macular optical coherence tomography and metamorphopsia assessment using Morphision test was also carried out. This test consists of a set of modified Amsler charts for detection, identification, and subjective quantification of visual distortion in the central visual field around fixation. Morphision test content and construct validity, and reliability (test-retest method) were evaluated. Sixteen patients completed an unstructured survey on test performance and preference. Results: Every patient with unilateral FTMH or ERM identified a particular chart using Morphision test (content validity). None of the normal subjects without symptoms of metamorphopsia identified any distortion (construct validity). Test-retest showed a 100% consistency for frequency and 67% for amplitude. The mean amplitude difference between measurements was 0.02 degrees (SD = 0.038). The coefficient of repeatability was 0.075. There was a correlation between Morphision amplitude score and visual acuity and contrast sensitivity, individually. Conclusions: Morphision test allowed detection and subjective quantification of metamorphopsia in the clinical setting in our patients with unilateral macular epiretinal membranes and full thickness macular holes. |
| abstractGer |
Background: Lack of clinical tests to quantify spatial components of distortion in patients with full thickness macular holes (FTMH) and epiretinal membranes (ERM). Aim: To develop a test for subjective evaluation of visual distortion in the central visual field around fixation in patients with unilateral FTMH or ERM. Settings and Design: Prospective case-control study carried out at tertiary referral center. Materials and Methods: Twenty-five patients with unilateral macular disease (13 macular epiretinal membranes, 12 full-thickness macular holes), and nine controls (without ocular pathology) underwent ophthalmological examination with logMAR ETDRS visual acuity, near vision and contrast sensitivity assessed. Macular optical coherence tomography and metamorphopsia assessment using Morphision test was also carried out. This test consists of a set of modified Amsler charts for detection, identification, and subjective quantification of visual distortion in the central visual field around fixation. Morphision test content and construct validity, and reliability (test-retest method) were evaluated. Sixteen patients completed an unstructured survey on test performance and preference. Results: Every patient with unilateral FTMH or ERM identified a particular chart using Morphision test (content validity). None of the normal subjects without symptoms of metamorphopsia identified any distortion (construct validity). Test-retest showed a 100% consistency for frequency and 67% for amplitude. The mean amplitude difference between measurements was 0.02 degrees (SD = 0.038). The coefficient of repeatability was 0.075. There was a correlation between Morphision amplitude score and visual acuity and contrast sensitivity, individually. Conclusions: Morphision test allowed detection and subjective quantification of metamorphopsia in the clinical setting in our patients with unilateral macular epiretinal membranes and full thickness macular holes. |
| abstract_unstemmed |
Background: Lack of clinical tests to quantify spatial components of distortion in patients with full thickness macular holes (FTMH) and epiretinal membranes (ERM). Aim: To develop a test for subjective evaluation of visual distortion in the central visual field around fixation in patients with unilateral FTMH or ERM. Settings and Design: Prospective case-control study carried out at tertiary referral center. Materials and Methods: Twenty-five patients with unilateral macular disease (13 macular epiretinal membranes, 12 full-thickness macular holes), and nine controls (without ocular pathology) underwent ophthalmological examination with logMAR ETDRS visual acuity, near vision and contrast sensitivity assessed. Macular optical coherence tomography and metamorphopsia assessment using Morphision test was also carried out. This test consists of a set of modified Amsler charts for detection, identification, and subjective quantification of visual distortion in the central visual field around fixation. Morphision test content and construct validity, and reliability (test-retest method) were evaluated. Sixteen patients completed an unstructured survey on test performance and preference. Results: Every patient with unilateral FTMH or ERM identified a particular chart using Morphision test (content validity). None of the normal subjects without symptoms of metamorphopsia identified any distortion (construct validity). Test-retest showed a 100% consistency for frequency and 67% for amplitude. The mean amplitude difference between measurements was 0.02 degrees (SD = 0.038). The coefficient of repeatability was 0.075. There was a correlation between Morphision amplitude score and visual acuity and contrast sensitivity, individually. Conclusions: Morphision test allowed detection and subjective quantification of metamorphopsia in the clinical setting in our patients with unilateral macular epiretinal membranes and full thickness macular holes. |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">DOAJ042918243</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230308065132.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230227s2013 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.4103/0301-4738.117804</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)DOAJ042918243</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)DOAJ88b7a568acfa4649875017ea5d279da4</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="050" ind1=" " ind2="0"><subfield code="a">RE1-994</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Marta Ugarte</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Morphision: A method for subjective evaluation of metamorphopsia in patients with unilateral macular pathology (i.e., full thickness macular hole and epiretinal membrane)</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2013</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Background: Lack of clinical tests to quantify spatial components of distortion in patients with full thickness macular holes (FTMH) and epiretinal membranes (ERM). Aim: To develop a test for subjective evaluation of visual distortion in the central visual field around fixation in patients with unilateral FTMH or ERM. Settings and Design: Prospective case-control study carried out at tertiary referral center. Materials and Methods: Twenty-five patients with unilateral macular disease (13 macular epiretinal membranes, 12 full-thickness macular holes), and nine controls (without ocular pathology) underwent ophthalmological examination with logMAR ETDRS visual acuity, near vision and contrast sensitivity assessed. Macular optical coherence tomography and metamorphopsia assessment using Morphision test was also carried out. This test consists of a set of modified Amsler charts for detection, identification, and subjective quantification of visual distortion in the central visual field around fixation. Morphision test content and construct validity, and reliability (test-retest method) were evaluated. Sixteen patients completed an unstructured survey on test performance and preference. Results: Every patient with unilateral FTMH or ERM identified a particular chart using Morphision test (content validity). None of the normal subjects without symptoms of metamorphopsia identified any distortion (construct validity). Test-retest showed a 100% consistency for frequency and 67% for amplitude. The mean amplitude difference between measurements was 0.02 degrees (SD = 0.038). The coefficient of repeatability was 0.075. There was a correlation between Morphision amplitude score and visual acuity and contrast sensitivity, individually. Conclusions: Morphision test allowed detection and subjective quantification of metamorphopsia in the clinical setting in our patients with unilateral macular epiretinal membranes and full thickness macular holes.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Anterior segment parameter</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">pars plana vitrectomy</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">pentacam</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">silicone oil injection</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Astigmatism</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">cataract surgery</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">toric lens</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">toric intraocular 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proportion</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Nasal incision</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">surgically induced astigmatism</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">temporal incision</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Mantoux test</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">serpiginous choroiditis</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">tuberculosis</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Distortion</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">epiretinal membrane</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">macular hole</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield 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