advertisement
Abstract #20526 Published in IGR 10-1
Effect of diode laser cyclophotocoagulation on the anterior segment: An Orbscan study
Arikan G; Yaman A; Ozbek Z; Saatci AO; Durak ICornea 2008; 27: 152-155
PURPOSE: To evaluate the effect of transscleral contact diode laser cyclophotocoagulation (TCDLC) on corneal topography, central corneal thickness (CCT), and anterior-chamber depth (ACD). METHODS: The Orbscan II system was used to determine the changes in corneal topography, CCT, and ACD before and after TCDLC in 25 eyes of 24 patients. RESULTS: Mean prelaser astigmatism was 4.51 ± 1.81, 4.64 ± 3.47, and 5.40 ± 3.04 D at central and 3- and 5-mm zones, respectively. Mean postlaser astigmatism was 4.54 ± 2.59, 4.75 ± 3.33, and 5.57 ± 3.12 D at central and 3- and 5-mm zones at 10 days and 3.99 ± 2.01, 4.05 &plusm; 2.20, 5.52 ± 4.60 D at 1 month, respectively, showing no statistically significant difference. Prelaser CCT was 540.72 &plusm; 103.48 μm. Postlaser CCT was 617.08 ± 86.35 μm at 10 days and 569.88 ± 70.36 μm at 1 month. CCT was significantly thicker at 10 days compared with prelaser CCT, whereas CCT at 1 month was not statistically different. ACD showed a nonsignificant decrease after TCDLC from 3.77 ± 0.81 to 3.38 ± 0.85 mm at 10 days and 3.58 ± 0.78 mm at 1 month. CONCLUSIONS: TCDLC does not alter corneal topography or ACD significantly. However, CCT increases during the 10 days after TCDLC and returns to normal at 1 month, which might be related to the inflammation induced by cyclophotocoagulation. Increased CCT may lead to artificially high intraocular pressure measurements within the first 4 weeks after surgery.
Dr. Z. Ozbek, Mithatpasa Cad, Erok sitesi D-Blok 95/19, Balcova 35330, Izmir, Turkey. Zeynep_ozbek@hotmail.com
Classification:
12.10 Cyclodestruction (Part of: 12 Surgical treatment)
2.2 Cornea (Part of: 2 Anatomical structures in glaucoma)
