Definitions Orthoptics: a wide range of techniques used to expand fusional vergence amplitudes and permit improved single binocular vision. Convergence insufficiency: a deficiency in convergence of the eyes to focus on a near target, causing symptoms such as difficulty reading.…
Definition Suppression: Cortical synaptic inhibition preventing conscious appreciation of diplopia and visual confusion in patients with strabismus. Anomalous correspondence: Cortical adaptation to early-onset, long-standing, stable-angle strabismus that permits crude binocular vision. Monofixation syndrome: A form of anomalous binocular vision featuring…
Definition Visual acuity in preverbal infants is defined as a motor or sensory response to a threshold stimulus of known size at a known testing distance. Visual acuity in preliterate but verbal children is described as the smallest target of…