Certain eyes are at a higher risk of complication during cataract surgery. Operations on such ‘high-risk’ eyes are also more likely to yield a poor visual outcome (defined as best corrected vision less than 6/60 after surgery).1 Learning to recognise when eyes are at greater risk, and acting accordingly, will help you to avoid complications. Even so, before the operation takes place, it is good...

The purpose of this study was to determine the effect of Power Balance® bands on strength, flexibility, and balance. Strength and flexibility were measured using the MicroFit system. Strength was measured via a bicep curl and flexibility via the sit-and-reach method. Balance was measured by the BIODEX System SD. There were 4 different conditions for the balance test: eyes open on a firm surface...

OBJECTIVE To study the visual acuity and astigmatism of persons undergoing cataract extraction by local surgeons in rural China. METHODS Visual acuity, keratometry, and refraction were measured 10 to 14 months postoperatively for all cataract cases during 4 months in Sanrao, China. RESULTS Among 313 eligible subjects, 242 (77%) could be contacted, of whom 176 (73%) were examined. Of those w...

AIM To study the effect of the topical anti-inflammatory drug, ketorolac, on (1) the clinical allergic reaction induced by the conjunctival provocation test (CPT); (2) the release of tryptase in tears; and (3) the expression of adhesion molecules on the conjunctival epithelium. METHODS 10 allergic but non-active patients were challenged in both eyes with increasing doses of specific allergen ...

Experimental evidences suggest that Panic Disorder (PD) is characterized by abnormalities in respiratory and vestibular functions. We studied balance system function in patients with PD and its relationships with CO(2) reactivity and clinical characteristics. Nineteen patients with PD with/without agoraphobia underwent static posturography and the 35% CO(2) challenge. The severity of clinical s...

OBJECTIVE To describe recognition (letter) acuity at age 10 years in eyes with and without retinal residua of retinopathy of prematurity (ROP). DESIGN Presence and severity of ROP residua were documented by a study ophthalmologist. Masked testers measured monocular recognition visual acuity (Early Treatment of Diabetic Retinopathy Study) when the children were 10 years old. Two hundred forty-...

Despite the widespread use of caffeine as a central nervous stimulant, the central pharmacodynamic properties of the drug have not yet been conclusively evaluated in humans. The present study was undertaken to assess the acute effects of caffeine on measures of topographical quantitative electroencephalogram (EEG) in normal subjects. Ten healthy male volunteers (mean age +/- SD 25 +/- 4 years) ...

Overview My research consists of designing and building systems in the areas of Human-Computer Interaction and Accessibility. My dissertation research has primarily focused on the design and development of eyes-free exercise technologies for people who are blind or low vision. In addition, I have collaborated with researchers in industry and in the medical field and built four other systems: 1-...

Gopal, a Hindu male, aged about 42 years, came into Burrisal Dispensary, 10th August, with cataract in both eyes. Was quite blind of right eye for nearly two years, and is almost blind of the left one. Cataract commenced in the right eye about three years ago. An ophthalmoscopic examination was made, but the opacity of the lens was too dense to allow of intraocula inspection. The pupil contract...

The visual acuities of 1625 individuals recruited to a community-based clinical trial of ivermectin in southern Sierra Leone were measured, and the prevalence of visual loss in this rural population where onchocerciasis is hyperendemic was determined. Ocular examination was performed before treatment to establish the cause of visual loss. Using WHO definitions, 1.3% were blind (less than 3/60 i...