Aiyin Chen

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We performed ophthalmologic examinations on 127 subjects with or at risk for human immunodeficiency virus (HIV) infection over a one-year period to determine the prevalence and significance of retinal cotton-wool spots and hemorrhages (AIDS-related retinal microvasculopathy). Of 26 asymptomatic homosexual men, of whom 13 were HIV seronegative and 13 were(More)
PURPOSE To determine whether clinical outcomes in bacterial keratitis are associated with antibiotic susceptibility. DESIGN Retrospective, ancillary study using data and samples from a completed randomized clinical trial. METHODS Forty-two patients were enrolled with culture-confirmed bacterial keratitis at Aravind Eye Hospital in South India. All(More)
The neural mechanisms underlying recognition of familiar individuals and responses appropriate to them are not well known. Previous studies with male golden hamsters have shown that, after a series of brief aggressive encounters, a loser selectively avoids his own, familiar winner but does not avoid other males. Using this paradigm, we investigated activity(More)
PURPOSE We correlated scleral IOP to assigned IOP using pneumatonometry in cadaver eyes before and after Boston type I keratoprosthesis (KPro) implantation. METHODS Corneal IOP and scleral IOP at the superonasal, superotemporal, inferotemporal, and inferonasal quadrants were measured using pneumatonometry in six cadaver eyes cannulated with an infusion(More)
OBJECTIVE To describe the development and health claims of Asian herbal-tobacco cigarettes. METHODS Analysis of international news sources, company websites, and the transnational tobacco companies' (TTC) documents. PubMed searches of herbs and brands. RESULTS Twenty-three brands were identified, mainly from China. Many products claimed to relieve(More)
Rituximab, a monoclonal antibody to the B cell marker CD20, is becoming increasingly popular in the treatment of various orbital disorders. In this university-based interventional case series, we describe two patients with bilateral orbital and extra-orbital reactive lymphoid hyperplasia (RLH) treated with rituximab. Initially both had favorable responses;(More)
We describe a vision sparing surgical approach for optic nerve glioma. A 7-year-old girl experienced declining academic performance and social withdrawal attributed to progressive disfiguring proptosis. Three years earlier, she had undergone a limited biopsy, a course of chemotherapy, and orbital radiation therapy for a right optic nerve glioma with(More)
Glaucoma is an optic neuropathy that affects an estimated 60 million people and causes bilateral blindness in 8.4 million people worldwide [1]. It is characterized by degeneration and death of retinal ganglion cells and their axons that results in characteristic excavated optic nerve head appearance and corresponding visual field loss. Open angle glaucoma(More)
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