[Esotropia and hyperopia corrected].

The subgroups of esotropia exist. The full optical correction of the hypermetropic refractive error is theoretically conclusive. The full correction further defined the diagnosis of three forms of esotropia.

[The esotropia of the convergence-excess type subdivided into two forms].

There are two types of convergence excess esotropia in the classification of strabismus in our country. One is nonrefractive accommodative esotropia and another is nonaccommodative convergence excess esotropia. Inadequate heterophoria method to determine the AC/A ratio does not distinguish between a high AC/A ratio and nonaccommodative convergence excess.

A new method of extrapolating the sweep pattern visual evoked potential acuity.

Purpose: In order to compare the amplitude-spatial frequency (A-SP) regression method with amplitude-logVA (A-logVA) regression methods in extrapolating the sweep pattern visual evoked potential (SPVEP) acuity.

Methods: We measured SPVEPs in 21 children and three adults using sinusoidally-modulated horizontal gratings as stimuli. The responses were averaged and displayed through discrete Fourier transformations.

[Pay attention to recovery of the binocular vision following strabismus surgery].

The primary goal of strabismus treatment is to correct and reverse a pathologic condition. Successful treatment is associated with relief from visual confusion or diplopia, a very high incidence of sensory binocular vision, an expanded peripheral visual field, and improved psychosocial function. Binocularity before and after strabismus surgery should be well understood.

[Postoperative change of the Bielschowsky head tilt test in patients with unilateral congenital superior oblique palsy].

Objective: To investigate the postoperative changes of the head tilt test in patients with unilateral congenial superior oblique palsy.

Methods: Thirty-eight cases with congenital unilateral superior oblique palsy underwent the ipsilateral inferior oblique or/and contralateral inferior rectus weakening procedure. Bielschowsky head tilt test was evaluated quantitatively before and after the operation by the prism cover test while the patient fixated at 33 cm and 6 m on the small light target.