The optical requirements and binocular function of a group of adolescent fully-accommodative esotropes were evaluated. Twelve patients who had fully-accommodative esotropia were studied, a mean of 6.8 years following discharge. The current optical correction and spectacle use was determined in all 12. In a sub-group of six patients, orthoptic examination and refraction was carried out. Ten of 12 patients continued to require optical correction for most activities. The yearly decrease in mean spherical equivalent was 0.17 dioptres. The mean cylindrical correction had increased from 0.073 to 0.456 dioptres. Patients who reattended all had good control of the esodeviation and would only decompensate on extreme accommodation. The uncorrected binocular visual acuity of four of these patients had deteriorated between 1 and 4 lines of Snellen acuity. No patient had an increase of uncorrected binoclar visual acuity.