PubMed · 17198858
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Lisandro Sakata, Kenji Sakata, Roberto Freire Santiago Malta. 2007. Cataract surgery and glaucoma.. https://doi.org/10.1016/j.ophtha.2006.08.028
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We describe a pseudophakic patient with pseudoexfoliation who developed late intraocular lens (IOL) instability manifested by pseudophakodonesis, a change in refraction, and loss of glaucoma control. The patient subsequently required glaucoma surgery that was complicated by vitreous loss. Preoperative ultrasound biomicroscopy (UBM) failed to provide useful information regarding the zonular status. The patient died as a result of a malignancy, and the eye was donated for research. Anatomical evaluation confirmed the clinical impression of IOL placement in the bag and zonular laxity. Postmortem UBM helped explain some of the technical difficulties in examining zonules in the pseudophakic state.
PURPOSE: To compare A-scan biometry and ultrasound biomicroscopy of primary angle closure suspects (PACS) with age-matched normal Indian eyes. PATIENTS AND METHODS: Subjects with primary angle closure suspects (n=57 eyes) and normal eyes (n=57 eyes) underwent A-scan biometry and ultrasound biomicroscopy. Anterior chamber depth (ACD), anterior chamber angle (ACA), axial length (AXL), lens thickness, relative lens position (RLP), central corneal thickness (CCT), angle opening distance 500, trabecular-ciliary process distance (TCPD), iris-ciliary process distance, iris thickness, and scleral-ciliary process angle were measured. The subjects were divided into males, females, and combined groups for analysis. The parameters were compared using independent sample t test with Bonferroni correction for multiple comparisons. RESULTS: In the combined group, the PACS subjects presented a significantly low ACD, AXL, CCT, AOD500, TCPD, ACA (P<0.001), and RLP (P=0.04). In males, RLP was anterior (P=0.002) and in females, the lens thickness (P<0.001) was significantly thicker among the PACS group. CONCLUSIONS: ACD, AXL, CCT, TCPD, ACA, and angle opening distance 500 of the PACS group were significantly lower than in normals. In females, the lens in PACS was thicker than in normals. Lens in males was more anterior-placed in PACS group than in normals.