Is post-trabeculectomy serous choroidal detachment a risk factor for failure in the long-term.
Kiana Hassanpour1 *, Maryam Yadgari10 , Nader Nassiri10
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences
Abstract: To investigate the long-term effect of serous choroidal detachment on the success of
trabeculectomy in glaucoma patients
Methods: In this case-control study, 17 patients who underwent trabeculectomy and developed
choroidal detachment, and completed at least 3 years of follow-up were included. The controls were
matched based on age, sex, preoperative intraocular pressure, and glaucoma type, and lack of choroidal
detachment. Surgical success was defined based on 2 definitions of 5 < IOP < 16 and 20% reduction from
the baseline and no need for further glaucoma surgery and all the same but 5 < IOP <22.
Results: The mean estimated duration of survival ± SD was 2.73 ± 0.35 years (CI 95% 2.1, 3.4), which
was significantly shorter than 3.98 ± 0.38 years (CI 95% 3.3, 4.7) in the control group. (LogRank= 5.03 P=
0.02). Cumulative probability of success was 76.5%, 52.9%, 29.4 %, 17.6 and 11.8 % in year 1, 2, 3, 4, and
5 in the case group, respectively. Corresponding values were 88.2 %, 82.4 %, 68.6 %, 58.8 %, and 47.1 %.
In the control group, respectively. At baseline, average IOP was 22.3 ± 2.7 and 23.8 ± 8.3 mm Hg in the
case and control groups, respectively. (P= 0.17) Mean IOP was significantly higher in the case group than
in the control group in years 2, 3, 4, and 5
Conclusion: Serous choroidal detachment affects the long-term surgical success of trabeculectomy,
especially in patients with advanced glaucoma when lower target pressure is required
