Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1988-9-22
pubmed:abstractText
Opacities in the cornea, crystalline lens, and vitreous may make conventional measurements of retinal/visual function of little value. Here, we present two psychophysical hyperacuity tests that are designed to detect and quantify retinal distortions even in the presence of substantial opacities. One test makes use of a two-dot vernier display in which directional bias as well as vernier acuity can be estimated. The second test is a multi-dot hyperacuity bisection task, which resembles a simplified Amsler grid test. By varying the spatial parameters of these stimuli, metamorphopsia may be quantified. The method is applicable both in clear and occluded ocular media.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0093-7002
pubmed:author
pubmed:issnType
Print
pubmed:volume
65
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
349-53
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Measurement of metamorphopsia in the presence of ocular media opacities.
pubmed:affiliation
School of Optometry, University of California, Berkeley.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Case Reports, Research Support, Non-U.S. Gov't