To determine the part played by screening in detecting visual defects questionnaires were sent to 240 families with blind or partially sighted children identified from the Family Fund's database. Questions were asked on social and family background, the visual disorder and its severity, any other disability, and how and when the disabilities were discovered and subsequently managed. Data from 1...

PURPOSE The management of diplopia can be challenging in patients with a concurrent visual-field (VF) defect. We conducted a retrospective chart review to analyze and compare treatment outcomes for different types of VF defects. METHODS A retrospective chart review. RESULTS Seven patients with diplopia and VF defects were identified during the study. Four had bitemporal hemianopia, one had ...

Previous explanations for the variability in success of compensating for homonymous hemianopia (HH) has been in terms of extent of the brain injury. In using on-line eye movement registrations, we simulated HH in 16 healthy subjects and compared their scanning performance on a dot counting task to their own "normal" condition and to real HH patients' performance. We evidenced clear parallels be...

Three patients were found to have visual field defects which involved homonymous horizontal sectors of the visual fields, thus mimicking field defects associated with lesions of the lateral geniculate nucleus. Computed tomography provided anatomical evidence that the responsible lesion involved the optic radiations rather than the lateral geniculate nucleus.

ANEURYSMS occur more frequently within the cranium than elsewhere in the body, and most-75 to 85 per cent. according to Walsh (1964)-are situated on the anterior part of the circle of Willis. In this region they are closely related to the primary visual pathways and motor nerves to the eye. Extra-ocular muscle palsies are well recognized by ophthalmologists as indicative of such lesions, partic...

A STATISTICAL survey was carried out in November, 1953, of the records of children who attended the school ophthalmic clinic in this area. Records were available for children of pre-school age and for those attending school at the time of the analysis. The population of this industrialized county borough has been reasonably static in the last few years; it was not disrupted during the war and t...

everal previous clinical research studies1--6 have found he pattern visual-evoked potential (VEP) to be useful in etecting a wide range of visual-field defects objectively. n a previous study completed in our laboratory,6 circuar, annular, hemi-field, and quadrant absolute visual-field efects were simulated and assessed objectively for detecion and discrimination using the pattern VEP method. h...

PURPOSE Surgical decompression of the vein in central retinal vein occlusion (CRVO) by radial optic neurotomy (RON) was recently proposed as being surgically feasible, safe, and beneficial. The effect of RON on the visual field has not been systematically reported, although possible visual field defects are expected due to iatrogenic cutting of the optic nerve fibers. The authors report the res...

PREVALENT IN 20–57% OF STROKE PATIENTS, visual field defects have been shown to impact quality of life. Studies (8) have shown increased risk of falling, ambulatory difficulties, impaired reading ability, and feelings of panic in crowded or unfamiliar places in patients with visual field defects. Rehabilitation, independence, and mental health may also be impacted (8). As future physicians who ...

AIMS Visual and microscopic evaluation of defects caused by torsional fatigue in hand and rotary nickel titanium (NiTi) instruments. MATERIALS AND METHODS Ninety-six NiTi greater taper instruments which were routinely used for root canal treatment only in anterior teeth were selected for the study. The files taken include ProTaper for hand use, ProTaper Rotary files and Endowave rotary files....