Diode Laser Transscleral Cyclophotocoagulation for the Treatment of Secondary Glaucoma

1. Dr Muhammad Hamza Khan
2. Dr Mehnaz Shah
3. Dr Farheen Sheikh
4. Dr Muhammad Jawwad

Aga Khan University Hospital, Karachi , Pakistan

Objective: To evaluate the effect of diode laser transscleral cyclophotocoagulation (TSCPC) in eyes with secondary glaucoma in a tertiary care hospital in Karachi, Pakistan

Methods: This was a retrospective chart review of 42 eyes of 36 patients who underwent TSCPC for secondary glaucoma during May 2008 and October 2009. We assessed the success rate of the treatment (proportion of eyes achieving an IOP reduction of ≤ 22mmHg with or without medication) and reduction in the mean number of glaucoma drugs used.

Results: The mean age at TSCPC was 47± 20 years (12-85). The mean follow-up was range 4 to 6 months). The indications for TSCPC were silicone oil induced glaucoma (19 eyes), advanced glaucoma (9), rubeotic glaucoma (4), neovascular glaucoma (1), post-PKP glaucoma (1), CRVO (3), posttraumatic glaucoma (2), juvenile glaucoma (1) and congenital glaucoma (1). The mean (±SD) pre-TSCPC IOP was 38.4 (9.4) mmHg (range 21–58 mmHg). This reduced to 16.3(8.5) mmHg (range 4–50) after TSCPC. Overall, 35 of 42 (83.3 %) eyes achieved an IOP of ≤ 22mmHg as a result of TSCPC. The average number (±SD) of anti-glaucoma drugs used decreased from 2.5(0.8) to 1.2 (1.1)

Conclusion: Our study supports previous findings that TSCPC is an effective means of controlling IOP in patients with secondary glaucoma.