Dennis S. C. Lam

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Age-related macular degeneration (AMD), the most common cause of irreversible vision loss in individuals aged older than 50 years, is classified as either wet (neovascular) or dry (nonneovascular). Inherited variation in the complement factor H gene is a major risk factor for drusen in dry AMD. Here we report that a single-nucleotide polymorphism in the(More)
We conducted a genome-wide association study for primary open-angle glaucoma (POAG) in 1,263 affected individuals (cases) and 34,877 controls from Iceland. We identified a common sequence variant at 7q31 (rs4236601[A], odds ratio (OR) = 1.36, P = 5.0 × 10⁻¹⁰). We then replicated the association in sample sets of 2,175 POAG cases and 2,064 controls from(More)
OBJECTIVE To determine the efficacy of photodynamic therapy (PDT) with verteporfin as a treatment for symptomatic polypoidal choroidal vasculopathy (PCV). DESIGN Prospective consecutive, 2-centered, noncomparative interventional case series. PARTICIPANTS Twenty-one Asian patients with 22 eyes presenting with serosanguinous maculopathy due to PCV and an(More)
PURPOSE The optineurin gene (OPTN) is the second gene besides MYOC in which mutations have been identified to be associated with primary open-angle glaucoma (POAG). In this study, sequence alterations in the OPTN gene associated with POAG in Chinese subjects were investigated. METHODS All the coding exons of OPTN were screened, including the intron-exon(More)
PURPOSE To determine the aqueous levels of vascular endothelial growth factor (VEGF) and pigment epithelium-derived factor (PEDF) in patients with active polypoidal choroidal vasculopathy (PCV) and choroidal neovascularization (CNV) secondary to age-related macular degeneration (AMD) and pathologic myopia. DESIGN Prospective, comparative control study. (More)
PURPOSE To evaluate the variants of 10 genes for association with primary open-angle glaucoma (POAG) in a Chinese population. METHODS A total of 405 unrelated patients with POAG (255 high-tension glaucoma [HTG], 100 normal-tension glaucoma [NTG], and 50 juvenile-onset open-angle glaucoma [JOAG]) and 201 control subjects were recruited. Seventeen variants(More)
PURPOSE To discover sequence alterations in the TIGR/MYOC gene associated with primary open-angle glaucoma (POAG) in Chinese subjects. METHODS Two hundred one unrelated Chinese patients with POAG and 291 unrelated individuals without glaucoma, aged 50 years or more, were screened for sequence alterations in the TIGR/MYOC gene by polymerase chain reaction,(More)
PURPOSE To evaluate the efficacy of a safety enhanced photodynamic therapy (PDT) protocol with half-dose verteporfin for treating chronic central serous chorioretinopathy (CSC). METHODS Forty-eight eyes of 48 patients with symptomatic chronic CSC underwent indocyanine green angiography guided PDT with half dose (3 mg/m) verteporfin. Outcome measures(More)
OBJECTIVE To evaluate the efficacy of photodynamic therapy (PDT) with half-dose verteporfin for treating acute central serous chorioretinopathy (CSC). DESIGN Prospective, double-masked, placebo-controlled, randomized clinical trial. PARTICIPANTS AND CONTROLS Sixty-three eyes of 63 patients with acute symptomatic CSC of 3 months' duration or less were(More)