To the Editorial Committee of the BRITISH JOURNAL OF OPHTHALMOLOGY SIRS,-It is the common experience of those surgeons who operate early on children with constant convergent squint of onset before the age of 2 years that, in those cases which they are able to follow up, if all the manifest obstacles to development of binocular vision are removed, a small proportion will attain full binocularity...

PURPOSE (1) To devise a model-based method for estimating the probabilities of binocular fusion, interocular suppression and diplopia from psychophysical judgements, (2) To map out the way fusion, suppression and diplopia vary with binocular disparity and blur of single edges shown to each eye, (3) To compare the binocular interactions found for edges of the same vs opposite contrast polarity. ...

We examined whether interocular inhibition in binocular rivalry could occur at the interocular intersection of horizontal and vertical rectangular patches which are locally fusible but globally rivalrous between the two eyes. We measured contrast increment (and decrement) thresholds of a monocularly presented probe which was presented on the horizontal patch corresponding to the intersection. W...

PURPOSE To investigate the association between binocular function and vision after cataract removal and primary posterior chamber intraocular lens (PC-IOL) implantation in children with unilateral cataract and to identify visual function differences according cataract type. METHODS Clinical records of 2- to 6-year-old patients with unilateral cataract removal and primary PC-IOL implantation w...

PURPOSE To report the postoperative binocular function of patients with Boston type I keratoprostheses implantation for unilateral visual impairment. METHODS Seventeen patients who underwent implantation of a Boston type I keratoprosthesis and had a best-corrected visual acuity better than 20/50 in the contralateral eye before surgery were evaluated. All subjects prospectively underwent senso...