2M.D. Buca Seyfi Demirsoy State Hospital, Eye Clinic, Izmir/TURKEY
3M.D. Associate Professor, Zubeyde Hanim State Hospital, Eye Clinic, Izmir/TURKEY
4M.D. Asistant Professor, Sifa University Faculty of Medicine, Department of Ophthalmology, Izmir/TURKEY Purpose: To evaluate ciliary body thickness and compare with healthy eyes of the same subjects with ultrasonic biomicroscopy in refractory glaucoma patients treated with transscleral diode laser cyclophotocoagulation therapy.
Materials and Methods: The study group consisted of 8 patients (3 females, 5 males) who had transscleral diode laser cyclophotocoagulation (TDLC) therapy one year ago and responded to treatment successfully. Patients had refractory glaucoma unilaterally and the fellow eyes were healthy. One year after the TDLC treatment application, ciliary body thickness in treated eyes and in fellow eyes were compared with ultrasound biomicroscopy (UBM). UBM was performed to obtain measurements of ciliary body thickness at 1 mm (CBT1) and 2 mm (CBT2) posterior to the scleral spur.
Results: The mean pretreatment IOP was 44.7±12.1 mmHg which reduced to 15.2±5.3 mmHg at 1 year follow-up. The mean CBT1 and CBT2 values in the eyes which had diode laser treatment were 0.98±0.14 mm and 0.48±0.11 mm, respectively. The mean CBT1 and CBT2 values in the nontreated eyes were 1.21±0.07 mm and 0.60±0.13 mm, respectively (p=0.002 and 0.027, respectively). The CBT measurements at 1 mm and 2 mm in the nontreated eyes were significantly higher compared to glaucomatous eyes (p<0.005).
Conclusion: Ultrasound biomicroscopy can be used to evaluate the effects of TDLC on ciliary body.
Keywords : Ciliary body thickness, transscleral diode laser cyclophotocoagulation, ultrasound biomicroscopy