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Updated: Jan 23, 2026

Development of a Noninvasive, Laser-Assisted Experimental Model of Corneal Endothelial Cell Loss
Published on: April 24, 2020
Effect of trabeculectomy on corneal endothelial cell loss
Kazuyuki Hirooka1, Eri Nitta2, Kaori Ukegawa2
1Ophthalmology and Visual Science, Hiroshima University, Hiroshima, Japan khirooka9@gmail.com.
Aim:
To investigate changes in corneal endothelial cell density (CECD) after trabeculectomy.
Methods:
This prospective, observational study followed 117 eyes of 117 patients for 2 years after trabeculectomy. The central cornea was examined by corneal specular microscopy prior to and at every 6 months after the surgery. Survival analysis of patients who exhibited a 10% or less reduction of the postoperative CECD compared with preoperative levels was assessed using the Kaplan-Meier survival curve. A Cox proportional hazards model was used to evaluate prognostic factors for decreasing CECD.
Results:
At baseline, the mean CECD was 2420±357 cells/mm2, while at 6, 12, 18 and 24 months after surgery, the mean CECD was 2324±373 cells/mm2 (p<0.001), 2276±400 cells/mm2 (p<0.001), 2290±398 cells/mm2 (p<0.001) and 2267±446 cells/mm2 (p<0.001), respectively. At 6, 12, 18 and 24 months after surgery, the results of the Kaplan-Meier survival analysis of the 10% loss of CECD from baseline were 91%, 85%, 83% and 77%, respectively. Uveitic glaucoma was a significant prognostic factor for decreasing CECD (p=0.041).
Conclusions:
CECD significantly and continuously decreased after trabeculectomy.
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