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Abstract #5734 Published in IGR 2-1
Anterior chamber depth and complications during cataract surgery in eyes with pseudoexfoliation syndrome
Küchle M; Viestenz A; Martus P; Händel A; Jünemann A; Naumann GOAmerican Journal of Ophthalmology 2000; 129: 281-285
PURPOSE: To look for associations of preoperative A-scan ultrasound ocular dimensions with complications during phacoemulsification in eyes with pseudoexfoliation. METHODS: A total of 174 eyes with pseudoexfoliation of 135 patients undergoing planned cataract surgery were included in a prognostic study based on the review of a clinical database. Preoperatively, A-scan ultrasound examination with measurement of anterior chamber depth, lens thickness, and total axial length was performed. Phacoemulsification with implantation of a posterior chamber intraocular lens was performed by a total of five surgeons. Intraoperative complications (zonular dialysis and/or vitreous loss) were correlated with preoperative findings including ultrasound dimensions. Multivariate logistic regression analysis with a generalized estimating equations method was used for statistical analysis. RESULTS: Intraoperative complications occurred in 12 eyes (6.9%) of 11 patients. The anterior chamber was significantly shallower in eyes with than in eyes without complications (mean, 2.36±0.44 mm versus 2.74±0.52 mm; p=0.013). The differences in lens thickness (4.93±0.55 mm versus 4.72±0.54 mm; p=0.30) and the differences in axial length (22.92±1.09 mm versus 23.66±1.36 mm; p=0.07) between the two groups did not reach statistical significance. In eyes with pseudoexfoliation, an anterior chamber depth of less than 2.5 mm was associated with a risk of 13.4% for intraoperative complications compared with an overall incidence of intraoperative complications of 6.9% and an incidence of 2.8% for an anterior chamber depth of 2.5 mm or more. CONCLUSIONS: A small anterior chamber depth may indicate zonular instability in eyes with pseudoexfoliation syndrome and should alert the cataract surgeon to the possibility of intraoperative complications.
Dr. M. Küchle, Department of Ophthalmology and University Eye Hospital, Erlangen, Germany. michael.kuechle@augen.med.uni-erlangen.de
Classification:
9.4.4.1 Exfoliation syndrome (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders > 9.4.4 Glaucomas associated with disorders of the lens)
12.12.3 Phacoemulsification (Part of: 12 Surgical treatment > 12.12 Cataract extraction)
