PHOTORECEPTOR FUNCTION IN UNILATERAL AMBLYOPIA

We investigated whether photoreceptor function in amblyopic eyes diffe red from that in non-amblyopic eyes. Photoreceptor function was assess ed with the optical Stiles-Crawford effect (SCE), psychophysical SCE, and foveal visual pigment density in both eyes of ten unilateral ambly opic subjects. Optical SCE and density measurements were carried out w ith a custom-built scanning laser ophthalmoscope (SLO). Amblyopic and normal eyes did not differ in Stiles-Crawford effect, nor in foveal vi sual pigment density. Contrary to suggestions in the literature, we fo und no indication of retinal dysfunction at the level of the cone phot oreceptors in amblyopic eyes. (C) 1998 Elsevier Science Ltd. All right s reserved.