High-resistance wind instruments and IOP.
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Biomedical subjects
Publications and source records attributed to J I Markoff.
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Forty-one patients (82 eyes) underwent bilateral intraocular lens implantation. The first eye of each patient received an anterior chamber lens with intracapsular extraction while the second eye received a posterior chamber lens with extracapsular extraction. Ninety-two per cent of the eyes having intracapsular extraction and 95 per cent of the eyes undergoing extracapsular extraction obtained 20/40 vision or better when surgery was free of intraoperative complications. Statistical difference between groups was not significant. The most common complication was chronic cystoid macular oedema, the incidence of which did not differ between groups. Using patients as their own controls, there does not appear to be a statistically significant difference in results or complications between cataract extraction performed by an intracapsular technique and anterior chamber lens versus an extracapsular procedure with posterior chamber lens.
The electro-oculogram (EOG) in the involved eyes of 20 patients with a choroidal melanoma was compared to the EOG in the uninvolved eyes of these 20 patients and to the EOG in both eyes of 10 patients with a choroidal nevus in one eye and 19 normal control patients. A statistically significant reduction in the EOG occurred in eyes with melanomas compared to patients with nevi. No difference was found between the EOG of normals and the uninvolved eye of melanoma patients. Patients with nevi did not differ from normals. This observation was independent of tumor size and was not related to the extent of retinal detachment.
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