Background: Some post-LASIK patients complain of blurry distance vision months after refractive surgery, despite good corneal healing and negligible refractive error. We postulated that perceiving blur in the absence of refractive error or significant monocular aberrations might result from poor binocular control. Binocular vision testing in a series of such patients revealed convergence proble...

The classical studies of coal miners' nystagmus were monocular in outlook, but the rise of orthoptics, the work of Campbell and others (1948, 1951), and the suggestion by Browne (1951) that miners' nystagmus may be a type of disuse atrophy of the visual apparatus, have all focused attention upon the binocular vision of the miner with this disease. The objects of the present investigation are to...

Optometric vision therapy, also referred to as visual training or orthoptics, is an individualized program of therapeutic and rehabilitative procedures prescribed to provide treatment for diagnosed visual dysfunctions. Vision therapy involves participation of the patient in a sequence of specific controlled visual tasks or procedures that modify visual function. The therapeutic application of l...

DESIGN Retrospective nonrandomized study of patients who underwent early vitreous surgery with lensectomywhen retinal detachment developed despite photocoagulation. Aphakic correction with spectacles or contact lenses and the use of orthoptics were continued postoperatively. The best-corrected visual acuity (VA) was measured in eyes with a total retinal reattachment using the preferential looki...