| Correlations between M-CHARTS and PHP findings and subjective perception of metamorphopsia in patients with macular diseases. | |
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MedLine Citation:
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PMID: 20739469 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To assess the correlations between a patient's subjective perception of metamorphopsia and the clinical measurements of metamorphopsia by M-CHARTS and PreView PHP (PHP). METHODS: The authors designed a 10-item questionnaire focusing on the symptoms of metamorphopsia and verified its validity with a Rasch analysis. M-CHARTS measured the minimum visual angle of a dotted line needed to detect metamorphopsia, and PHP used the hyperacuity function for detection. Subjects were 39 patients with idiopathic epiretinal membrane (ERM), 22 patients with idiopathic macular hole (M-hole), 19 patients with age-related macular degeneration (AMD), and 51 healthy controls. RESULTS: Rasch analysis suggested the elimination of one question. The nine-item questionnaire score significantly correlated to the M-CHARTS score in ERM (r = 0.59; P = 0.0004) but not in M-hole and to the PHP result in AMD (r = -0.29; P = 0.04) but not in ERM. Eighty percent of ERM patients with greater horizontal M-CHARTS score subjectively perceived horizontal metamorphopsia more often. M-CHARTS showed better sensitivities than PHP in both ERM (89% vs. 42%) and AMD (74% vs. 68%) and better specificity (100% vs. 71%) in healthy controls. Rasch analysis indicated that the present form of the questionnaire is better suited for moderate to severe cases of metamorphopsia than for mild cases. CONCLUSIONS: The questionnaire appears to be a valid assessment of patient subjective perception of metamorphopsia and can be used to supplement the clinical measurements of metamorphopsia by M-CHARTS and PHP in patients with macular diseases. |
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Authors:
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Eiko Arimura; Chota Matsumoto; Hiroki Nomoto; Shigeki Hashimoto; Sonoko Takada; Sachiko Okuyama; Yoshikazu Shimomura |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Validation Studies Date: 2011-01-05 |
Journal Detail:
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Title: Investigative ophthalmology & visual science Volume: 52 ISSN: 1552-5783 ISO Abbreviation: Invest. Ophthalmol. Vis. Sci. Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2011-01-06 Completed Date: 2011-02-07 Revised Date: 2013-01-09 |
Medline Journal Info:
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Nlm Unique ID: 7703701 Medline TA: Invest Ophthalmol Vis Sci Country: United States |
Other Details:
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Languages: eng Pagination: 128-35 Citation Subset: IM |
Affiliation:
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Department of Ophthalmology, Kinki University Faculty of Medicine, Sakai Hospital, Osaka, Japan. |
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Epiretinal Membrane / diagnosis Female Humans Macular Degeneration / diagnosis Male Middle Aged Questionnaires* Retinal Diseases / diagnosis* Retinal Perforations / diagnosis Sensitivity and Specificity Sickness Impact Profile* Vision Disorders / diagnosis* Vision Tests / instrumentation* Visual Acuity Visual Perception* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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