Tae Won Hahn

Learn More
PURPOSE To evaluate the efficacy of amniotic membrane transplantation in the management of treated infectious corneal ulcer in which inflammatory reactions were responsible for corneal damage. METHOD A prospective study of 21 consecutive eyes (21 patients) was performed. Sufficient antibacterial, antifungal, or antiviral agents were applied to eradicate(More)
In the present study, we investigated the effect of adenosine triphosphate (ATP) on cytosolic free calcium mobilization and mitogenic activity in cultured bovine corneal endothelial cells (BCEC). The [Ca2+]i was determined using a Ca2+ sensitive indicator, Fura-2/AM, and cell proliferation was evaluated by counting the cell number. ATP, its metabolites and(More)
PURPOSE To evaluate the long-term stability, complications, and causative factors in eyes that had photorefractive keratectomy (PRK) for myopia. SETTING Kangnam St. Mary's Hospital, Seoul, Korea. METHODS This study evaluated the results of PRK in 201 myopic eyes with a consecutive 5 year follow-up. Preoperative myopia ranged from 2.25 to 12.50 diopters(More)
To determine the expression of matrix metalloproteinases (MMPs) in cornea following excimer laser keratectomy, two sets of experiments were performed. In the first experiment, disciform excimer keratectomy was performed on rat corneas. The central regenerating epithelium was harvested at 3-96 h postwounding. MMP levels were assayed in the regenerated(More)
PURPOSE To clarify the effect of bradykinin on cytosolic free calcium mobilization and cell proliferation in cultured bovine corneal endothelial cells (BCEC). METHODS The cytosolic free calcium concentration (Ca2+]i) was measured with the InCa(TM) Imaging System after the treatment of bradykinin (10(-11) to 10(-7) M) alone or with the pretreatments of(More)
We performed one-step procedures of photorefractive keratectomy (PRK) with the use of the excimer laser (193 nm) on 1519 myopic eyes during 1 year. From this group, we prospectively evaluated visual and refractive results of 202 (13%) consecutive myopic eyes that were followed for more than 1 year. Myopic eyes were divided into two groups according to the(More)
We present a case of severe Terrien's marginal degeneration treated with two-step annular lamellar keratoplasty. Both eyes of the patient had peripheral corneal thinning with ectasia around the entire corneal circumference. First, an annular-shaped ectatic lesion was defined and removed, and donor tissue of the same size and shape was sutured on the(More)
We report a rare case of Acanthamoeba keratitis related to cosmetic contact lenses in both eyes. A 17-year-old girl with a history of wearing cosmetic contact lenses presented with keratitis. She purchased cosmetic contact lenses via the Internet, and followed a contact lens care system irregularly, occasionally using tap water. Cell culture was performed(More)
We retrospectively studied secondary intraocular lens (IOL) implantation in 165 aphakic patients (162 eyes) from May 1983 to August 1989. Seventy-five eyes (46.3%) had secondary IOL implantation; these included seven cases of trans-sulcus scleral fixation of the posterior chamber lens. The remaining 87 eyes could not have secondary IOL implantation because(More)