[The investigation of the stereoacuity in infants measured by the TV-Random Dot Stereo Test].
Evaluation of the level of stereoacuity in infants as early as possible is very important to detecting abnormalities and preventing further disturbance in visual functions. We developed a new instrument which permits the quantitative measurement of stereoacuity in infants. A total of 217 ophthalmologically normal infants were tested and stereoacuity was detected in 141 infants. Stereopsis is likely to arise at 3-4 months of age and develops as the infant grows. It can develop rapidly after the age of one year. The rate of detection was 48% in infants below 6 months old, and 65% as an overall mean among all age groups under 3 years of age. This new instrument, the TV-Random Dot Stereo Test, is very important to quantitatively measure stereoacuity of infants aged under 3 years, more simply and with greater reliability than other kinds of stereo tests for infants.
Mizukami
Y
Y
Department of Opthalmology, Nagoya University School of Medicine, Japan.
Awaya
S
S
Miyake
S
S
D000367:Age Factors; D002675:Child, Preschool; D003867:Depth Perception; D006801:Humans; D007223:Infant; D013690:Television; D014787:Vision Tests / Q000379:methods