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OBJECTIVES To compare success rates of conjunctival autografting and bare sclera excision for primary and recurrent pterygium in the tropics and to evaluate risk factors for pterygium recurrence. METHODS A prospective, controlled clinical trial was performed in which 123 primary and 34 recurrent pterygia, matched for age and pterygium morphology, were(More)
Myopia is a problem of public health concern in Singapore for three reasons. Firstly, the prevalence of myopia (more than −0.5 dioptres (D)) is one of the highest worldwide. Twenty per cent of Singapore children are myopic at 7 years at the start of their primary education, 1 with prevalence exceeding 70% upon completing college education.
PURPOSE To determine whether pterygium is a disorder of abnormal growth by examining the expression of the p53 gene in the conjunctiva of patients with pterygium. METHODS Immunostaining for abnormal expression of p53 was performed using mouse monoclonal antibody to human p53, pAb 240, on six eyes with primary pterygium and two eyes with recurrent(More)
OBJECTIVES To determine the incidence of acute primary angle-closure glaucoma (APACG) in Singapore and to identify demographic and meteorological risk factors. DESIGN A prospective, island-wide incidence study. SETTING All government and private ophthalmological practices in Singapore, from March 1, 1995, to February 29, 1996. METHODS New cases of(More)
OBJECTIVE To evaluate the safety of Surodex Drug Delivery System (Oculex Pharmaceuticals, Inc., Sunnyvale, CA) containing dexamethasone 60 micrograms, for use in cataract surgery, and to compare its anti-inflammatory efficacy with conventional dexamethasone 0.1% eyedrops. DESIGN Randomized, masked, and partially controlled trial. PARTICIPANTS Sixty eyes(More)
Diabetic retinopathy has now become a common cause of blindness in Singapore. Fortunately, laser photocoagulation has prevented blindness in the majority of patients who were treated. An analysis of 872 patients treated with argon laser photocoagulation showed that 424 patients (48.6%) were for diabetic retinopathy. Patients with adequate treatment retained(More)
The aim of this study was to determine the causative factors, organisms and antibiotic resistance in patients with bacterial keratitis in Singapore. We analysed retrospectively 103 cases of bacterial keratitis admitted to the Singapore General Hospital or the Singapore National Eye Centre during a 21-month period from March 1992 to December 1993. Contact(More)
PURPOSE This study was conducted to evaluate the effect of pupillary dilation on retinal nerve fiber layer (RNFL) thickness as measured by scanning laser polarimetry (SLP) in cataractous and noncataractous eyes. METHODS The study included 31 eyes of 31 consecutive patients (mean age, 62.5 +/- 14.0 years; range, 30-76 years). Eyes with refractive error(More)
BACKGROUND AND OBJECTIVE A prospective study was performed to compare argon laser iridotomy and sequential argon laser and Nd:YAG laser iridotomy in dark irides. PATIENTS AND METHODS Twenty-four eyes of 17 patients underwent laser iridotomies; 13 underwent argon laser iridotomies and 11 underwent sequential argon laser and Nd:YAG laser iridotomies. The(More)