Time-related variation in normal automated static perimetry.
cross_sectional · Level IV
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- Record sourced from PubMed, PMID 2062504.
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Abstract
The effects of phase of eye test and order of eye examined were investigated in 38 normal subjects using a customized 30-point central threshold program of the Humphrey Field Analyzer 640. This program, designed to be completed within 5 minutes, was successively repeated three times for each eye (i.e., three phases for each eye) at two visits separated by an interval of approximately 2 weeks. Both global and pointwise group mean sensitivity decreased in a time-related manner, deterioration being greater for the second eye at each visit, for both 200 ms and 100 ms stimulus durations.
Medical subject headings
- Visual Field Tests
- Visual Fields