Premium
The subjective assessment of cataract
Author(s) -
Elliott D.B.,
Gilchrist J.,
Hurst M.,
Pickwell L.D.,
Sheridan M.,
Weatherill J.,
Whitaker D.
Publication year - 1989
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1989.tb00798.x
Subject(s) - optometry , psychology , ophthalmology , medicine
The medical treatment of cataract now appears to be a distinct possibility. A number of anti‐cataract formulations are being clinically tested, and more clinical trials are being planned. To obtain a true assessment of a drug's efficacy, a battery of tests are needed which can accurately assess cataract progress. A clinical trial of the proposed anti‐cataract drug Bendalina is being conducted. The six subjective methods used to assess cataract progression in the trial are presented. These are refractive error, LogMAR visual acuity, contrast sensitivity, glare sensitivity, retinal visual acuity and displacement threshold hyperacuity. The reasons for using each technique and their method of measurement is explained.