Ametropic amblyopia is defined a bilateral amblyopia due to noncorrected refractive error. This

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A 23 year-old-man, who had no problem in visual acuity , eye-position, eye-movement or near stereopsis but had poor depth perception and no stereopsis on major amblyoscope , was given orthoptic training to try to improve binocular function. The training consisted of fusional convergence by prism and stereopsis training by using the stereoscope.

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