Markus Halberstadt

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Because proliferative vitreoretinopathy cannot be effectively treated, its prevention is indispensable for the success of surgery for retinal detachment. The elaboration of preventive and therapeutic strategies depends upon the identification of patients who are genetically predisposed to develop the disease, as well as upon an understanding of the(More)
PURPOSE To investigate the impact of transportation, simulated under laboratory conditions, on the corneal endothelium preserved by Optisol-GS, Likorol-DX, Likorol, and MK-Medium. METHODS Three hundred twenty corneas from freshly slaughtered pigs were stored in Optisol-GS. Likorol-DX, Likorol. and MK-Medium for 1, 3, 6, or 10 days. After short-term(More)
BACKGROUND The risk of function loss after each episode of ocular toxoplasmosis (OT) supports efforts to improve our understanding of the disease. PATIENTS AND METHODS 139 patients with OT were contacted retrospectively and requested to complete a questionnaire addressing course and activity of their disease. This information was compared with that(More)
BACKGROUND High postkeratoplasty astigmatism remains a challenge for the surgeon. First experiences after implantation of a toric PMMA IOL in three eyes from patients with cataracts are reported. MATERIALS AND METHODS After routine phacoemulsification we implanted an individually manufactured toric PMMA posterior chamber IOL via a sclerocorneal 6-mm(More)
Indocyanine green, infracyanine green, and trypan blue are frequently used as aids to visualize structures removed during vitreoretinal surgery. But they may have toxic effects on the retina. We therefore compared the acute and chronic toxicities of these stains on cultured human retinal pigmented epithelial (RPE) cells using clinically relevant(More)
BACKGROUND To compare the preoperative risk profiles of phakic and pseudophakic eyes with primary retinal detachment and to assess their impact on the outcome of primary reattachment surgery. PATIENTS AND METHODS 220 consecutive patients with primary retinal detachment, 165 phakic and 55 pseudophakic eyes were operated with scleral buckling alone or(More)
AIM To assess functional impairment in terms of visual acuity reduction and visual field defects in inactive ocular toxoplasmosis. METHODS 61 patients with known ocular toxoplasmosis in a quiescent state were included in this prospective, cross-sectional study. A complete ophthalmic examination, retinal photodocumentation and standard automated perimetry(More)
AIM To compare the anatomical and functional success of primary scleral buckling, performed either alone or in combination with vitrectomy, for primary retinal detachment (RD) in phakic eyes and in eyes had undergone uneventful phacoemulsification and had received posterior chamber lens implantations. METHODS A total of 243 consecutive patients were(More)
BACKGROUND Visual acuity serves as only a rough gauge of macular function. The aim therefore was to ascertain whether central an assessment of the central visual field afforded a closer insight into visual function after removal of epiretinal membranes and Infracyanine-Green- or Trypan-Blue-assisted peeling of the inner limiting membrane. PATIENTS AND(More)
PURPOSE To assess freeze-thaw-induced endothelial cell loss by using phase-contrast microscopy and early morphologic changes within each layer of human donor corneas by using confocal microscopy. METHODS Twenty-eight human corneas were cryopreserved in minimum essential medium containing 10% dextran with a molecular weight (MW) of 500,000 as an(More)