Recent data indicate that under a specific posthypnotic suggestion to circumvent reading, highly suggestible subjects successfully eliminated the Stroop interference effect. The present study examined whether an optical explanation (e.g., visual blurring or looking away) could account for this finding. Using cyclopentolate hydrochloride eye drops to pharmacologically prevent visual accommodatio...

he practice of anesthesia has long been surrounded with a egree of mystique. This can be illustrated by the current ack of full-proof evidence on the mechanism of action of olatile anesthetics for example, which is for the most part ypothesized.1 These blurred margins of knowledge crossver into non-anesthesiologist practitioners using anesthetic echniques, sometimes, without fully grasping the ...

PURPOSE To determine the effect of latrunculin (LAT)-A, which binds to G-actin and disassembles actin filaments, on the pupil, accommodation, and isolated ciliary muscle (CM) contraction in monkeys. METHODS Pupil diameter (vernier calipers) and refraction (coincidence refractometry) were measured every 15 minutes from 0.75 to 3.5 hours after topical LAT-A 42 microg (approximately 10 microM in...

OBJECTIVE To compare visual and refractive outcomes between self-refracting spectacles (Adaptive Eyecare, Ltd, Oxford, UK), noncycloplegic autorefraction, and cycloplegic subjective refraction. DESIGN Cross-sectional study. PARTICIPANTS Chinese school-children aged 12 to 17 years. METHODS Children with uncorrected visual acuity ≤ 6/12 in either eye underwent measurement of the logarithm o...

PURPOSE To assess the prevalence, distribution, and demographic associations of refractive error in an urban population in southern India. METHODS Two thousand five hundred twenty-two subjects of all ages, representative of the Hyderabad population, were examined in the population-based Andhra Pradesh Eye Disease Study. Objective and subjective refraction was attempted on subjects >15 years o...