Abstract：
PURPOSE:To describe a method for quantitative mapping of metamorphopsia and abnormalities of oculocentric direction in subjects with epiretinal membranes. METHODS:Binocular correspondence perimetry was performed using red and green dichoptic stimuli applied in a rectangular grid pattern. The study included 9 healthy subjects and 10 subjects with a unilateral premacular epiretinal membrane and a healthy fellow eye. Interocular visuospatial correspondence was expressed in a visuospatial deviation score and the binocular correspondence perimetry plots were displayed in proportion to fundus photographs. A reference interval was defined as the 95% CI for the average visuospatial deviation score in healthy subjects. RESULTS:In 6 out of 10 subjects with epiretinal membranes, visuospatial alignment deviated beyond the reference interval found in healthy subjects, whereas 4 subjects were within the normal range. The deviation score increased with decreasing visual acuity, although indications of heterogeneity of the subject population were identified, suggesting that visual acuity reduction and metamorphopsia may be dissociated in some types of epiretinal membranes. CONCLUSIONS:Binocular correspondence perimetry enables quantitative mapping of metamorphopsia and stratification of subjects with epiretinal membranes with respect to normative references. Data from healthy subjects appear to describe a physiological level of tolerance for changes in oculocentric direction, which may apply also to the changes induced by retinal traction.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Krøyer K,Jensen OM,Larsen Mdoi
10.1167/iovs.04-0952keywords:
subject
Has Abstractpub_date
2005-03-01 00:00:00pages
1017-22issue
3eissn
0146-0404issn
1552-5783pii
46/3/1017journal_volume
46pub_type
杂志文章abstract：PURPOSE:To better understand the cellular contributions to the human multifocal ERG (mfERG), rhesus monkey and human mfERGs were recorded using the same stimulus conditions. The monkey mfERGs were recorded before and after injections of pharmacologic agents known to selectively block activity of particular cells and ci...
journal_title：Investigative ophthalmology & visual science
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abstract：PURPOSE:The accessory lacrimal glands are assumed to contribute to the production of tear fluid, but little is known about their function. The goal of this study was to conduct an analysis of gene expression by glands of Wolfring that would provide a more complete picture of the function of these glands. METHODS:Gland...
journal_title：Investigative ophthalmology & visual science
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journal_title：Investigative ophthalmology & visual science
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abstract：PURPOSE:To evaluate a porcine anterior chamber perfusion model and to test the transferability of data obtained with this model to the human system. METHODS:Porcine eyes were obtained from a local abattoir and processed within 2 hours after death. Anterior chambers of 42 pairs of eyes were dissected with removal of le...
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journal_title：Investigative ophthalmology & visual science
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journal_title：Investigative ophthalmology & visual science
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journal_title：Investigative ophthalmology & visual science
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journal_title：Investigative ophthalmology & visual science
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