We studied instrument myopia as an overall effect consisting of interactions among the observer's accommodation and resolution during instrument viewing and the manner in which the instrument is focused. Previous investigations of instrument myopia generally have been limited to only one of these variables. Our results are consistent with the dark-focus-bias theory of accommodation, which holds...

municipal solid waste management (mswm) has become the greatest problem facing many urban and semi-urban areas in nigeria, although to varying degrees. this study suggests the various steps and approaches to combat the menace in akure in the southwest zone of nigeria. such approaches include creation of special agencies for the collection, recycling and conversion of municipal solid waste (msw)...

*Lieutenant Colonel, Medical Corps, U.S. Army; Department of Surgery, Critical Care Service, Brooke Army Medical Center, San Antonio, Texas 78234-6200 †Lieutenant Colonel, Medical Corps, U.S. Army Reserve; formerly, Director, Surgical Critical Care and Staff, General Surgery Service, Fitzsimons Army Medical Center, Aurora, Colorado 80045-5001; currently, Assistant Professor of Surgery and Criti...

This paper describes an early-stage investigation into approaches and tools to collect, manage, and deliver institutional metrics to the senior command of the United States Marine Corps. The paper describes how contemporary approaches to institutional metrics and supporting tools from more traditional organizations were adapted to Marine Corps priorities. The study explores current institutiona...

PURPOSE We tested the hypothesis that changes in accommodation after instillation of Phenylephrine Hydrochloride (PHCl) observed in some studies could be caused by changes in optics. METHODS We performed two experiments to test the effects of PHCl on static and on dynamic accommodation in 8 and 6 subjects, respectively. Objective wavefront measurements were recorded of the static accommodatio...

OBJECTIVE Disparity cues can be a major drive to accommodation via the convergence accommodation to convergence (CA/C) linkage, but, on decompensation of exotropia, disparity cues are extinguished by suppression so this drive is lost. This study investigated accommodation and vergence responses to disparity, blur and proximal cues in a group of distance exotropes aged between 4 and 11 years bot...

PURPOSE To estimate changes in surface shape and gradient refractive index (GRIN) profile in primate lenses as a function of accommodation. To quantify the contribution of surface shape and GRIN to spherical aberration changes with accommodation. METHODS Crystalline lenses from 15 cynomolgus monkeys were studied in vitro under different levels of accommodation produced by a stretching system....

Ocular accommodation provides a well-focussed image, feedback for accurate eye movement control, and cues for depth perception. To accurately perform visually guided motor tasks, integration of ocular motor systems is essential. Children with motor coordination impairment are established to be at higher risk of accommodation anomalies. The aim of the present study was to examine the relationshi...