Decrease in stereoacuity in the seventh decade of life

Brian Brown, Keng Hung Maurice Yap, Wallace C.S. Fan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

47 Citations (Scopus)


We measured stereoacuity in 41 subjects with normal Snellen acuity in each eye, and normal ocular health. Patients were measured in each of the age ranges 21–28, 41–49, 51–59 and 60–70 years. Stercoacuity was reduced from about 16 sec are for the three younger groups to about 27 sec arc for the older subjects. Since stereopsis has a cortical neural substrate, these data suggest that there may be cortical changes affecting the interaction of information from the two eyes with advancing age, but whether these changes result from loss of contrast sensitivity, instability of ocular alignment or binocular stress, all of which have been reported in elderly subjects, is not known.
Original languageEnglish
Pages (from-to)138-142
Number of pages5
JournalOphthalmic and Physiological Optics
Issue number2
Publication statusPublished - 1 Jan 1993

ASJC Scopus subject areas

  • Ophthalmology
  • Optometry
  • Sensory Systems


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