ABSTRACT
ABSTRACT: Stereoacuity declines with age. This study has examined whether a drop in stereoacuity is found using a range of stereo tests. Sixty subjects, aged 17-83 years had their stereoacuity assessed using the TNO, Titmus, Frisby and Frisby-Davis distance tests. All had good vision in each eye and no ophthalmic disease. Motor fusion was also assessed. Stereoacuity declined with age with a marked drop in 5 subjects over 55 years with the TNO test. Much better stereoacuity was found in these 5 cases with the other stereo tests. Results of random-dot stereotests should be interpreted with caution in older patients.
