The acuityscope: a resolution test target projection ophthalmoscope.

Abstract:

:The Acuityscope projects an image of a three bar resolution test target onto the patient's retina, where it is viewed and read by an observer. The test target consists of a series of three bar targets varying in size on a logarithmic scale. Individual targets are identified in the projected image by Bailey-Lovie log visual acuity equivalents. The projected image includes only those target sizes which are useful for estimating visual acuity. The Acuityscope is used for assessing the quality of retinal image formation, and is thus able to differentiate between poor visual acuity due to image degradation, (e.g. cataract or corneal disease) and poor visual acuity due to image handling defects (e.g. retinal or optic nerve disease). The use of the instrument is relevant to both clinical situations (e.g. pre-operative assessment of opacification of optical media) and experimental situations (e.g. clinical trials).

journal_name

Int Ophthalmol

authors

Brown NA,Sparrow JM,Shun-Shin GA,Franklin SL

doi

10.1007/BF00224470

subject

Has Abstract

pub_date

1991-03-01 00:00:00

pages

139-42

issue

2

eissn

0165-5701

issn

1573-2630

journal_volume

15

pub_type

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