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[Evaluation of retinal nerve fiber layer thickness in eyes with juvenile glaucoma after trabeculectomy]
Bronisława Koraszewska-Matuszewska1, Elzbieta Samochowiec-Donocik
1Katedry i Kliniki Okulistyki Dzieciecej Slaskiej Akademii Medycznej.
Purpose:
To examine the influence of intraocular pressure (IOP) decreasing after trabeculectomy on the retinal nerve fiber layer thickness (RNFL) in glaucoma in the youth.
Material And Methods:
Nineteen eyes of 12 patients at the age from 10 to 18, mean 13.6 years, treated for juvenile glaucoma were examined. All of them were operated on performing trabeculectomy. Before trabeculectomy and mean 14.9 months after operation IOP was measured and the RNFL thickness with laser scanning polarimeter GDx was estimated.
Results:
Values of IOP before surgery ranged from 23 to 28, mean 25.3 mmHg and after surgery ranged from 12 to 24, mean 14.3 mmHg. Symmetry and superior integral did not change, p = 0.96 after surgery. Average thickness of RNFL before operation was 60.61 microm and after surgery 63.09 microm, p = 0.06, superior average 74.14 microm and 78.33 microm, p = 0.06, inferior average 70.54 microm and 72.42 microm relatively p = 0.14.
Conclusions:
Decreasing IOP after trabeculectomy allows to maintain preoperative values of retinal nerve fiber layer thickness in eyes with juvenile glaucoma.
