Landolt C and grating acuity are compared with that normally expected of the eccentric fixation region for 10 strabismic amblyopes. The findings suggest that 2 populations of amblyopes exist. For some amblyopes visual function is that predicted of the eccentric region used for fixation, whereas for other amblyopes there is a further pathological reduction in visual function. These findings may ...

BACKGROUND Amblyopia treatment is not standardised and differences between centres and countries have not been systematically investigated. This survey compares the different patterns of orthoptic treatment of amblyopia in the United Kingdom (UK) and three German speaking countries (GSC). METHODS Questionnaires were sent to orthoptists in the UK and the GSC asking for their preferred choices ...

Some strabismic patients with inconstant squint can fuse two images in a single eye, and experience lustre and depth. One of these images is foveal and the other extrafoveal. Depth perception was tested on 30 such subjects. Relief was perceived mostly on the fixated image. Camouflaged continuous surfaces (hemispheres, cylinders) were perceived as bumps or hollows, without detail. Camouflaged re...

STUDY OBJECTIVE To investigate the relationship between age at presentation of amblyopia and social deprivation before and after the introduction of changes to a vision screening service. DESIGN Two cohorts of children treated for amblyopia in 1983 and 1992. SETTING THe orthoptic department of Leicester Royal Infirmary. PARTICIPANTS The 209 patients treated for amblyopia who first attende...

During routine work in the Orthoptic Department, we noticed that, in some children who were having their visual acuity tested by the Snellen method for the first time, the results proved worse than those recorded previously by the Sheridan Gardiner method. The majority of patients concerned had been having occlusion for amblyopia, which was either presumed or shown to exist by a test of the vis...

INTRODUCTION In congenital strabismus, sensory adaptations occur hampering the correct development of normal binocular vision. The aim of this study is to investigate if patients with congenital or early onset exotropic or esotropic strabismus adopt different walking strategies with respect to healthy subjects. Our hypothesis is that the abnormal binocular cooperation, occurring in patients wit...