OBJECTIVE The purpose was to determine whether preschool children aged 3 years 0 months through 3 years 6 months could be tested with the Random Dot E, Stereo Smile, and Randot Preschool stereoacuity tests, which are random dot stereotests marketed for use with preschoolers. METHODS A total of 118 children from five Vision In Preschoolers Study Clinical Centers participated. Strabismic childr...

Several medical organizations have published yet another joint statement trivializing vision therapy and vision disorders in the learning-disabled population. A review of the references in the joint statement as well as other references find that the joint statement is misleading because of inappropriate citations and selected references, as was the case with previous joint statements. The most...

Eight patients with a subjective disorder of vision yet normal Snellen acuities after optic neuritis were shown to have an abnormal contrast sensitivity function in their affected eye. It appears that certain disorders of vision are associated with an abnormality of the contrast sensitivity function in spite of near normal visual acuity. Such an abnormality may affect pattern recognition withou...

Genetic diseases of the macula and choroid have various inheritance patterns and varying degrees of impact on vision. Herein, we review the literature including most recent advances in the understanding of the genetics of these diseases. Although many of these disorders have limited treatment options, knowledge of inheritance patterns can aid in early detection and with close monitoring can hel...

The fatigue phenomenon of grating visual acuity was examined in 36 patients with optic nerve disorders by means of a laser interferometric acuity device. The phenomenon was found in 6 of 36 cases even under a luminance corresponding to the Japanese standards of office illumination. This fact indicated that the patients suffered visual fatigue in their everyday vision. After they were prescribed...

In order to assess vision in Alzheimer's disease (AD) and related disorders, gerontologists must use tests that make minimal cognitive demands on the subject. Using such tests, we have found a pattern of deficits in color discrimination, stereoacuity, contrast sensitivity, and backward masking that differs from that seen in healthy elderly individuals. Impaired vision predicts deficient perform...