Effect of 2% dorzolamide on retinal blood flow: a study on juvenile primary open‐angle glaucoma patients already receiving 0.5% timolol

Article date: March 2007

By: Ciro Costagliola, Claudio Campa, Francesco Parmeggiani, Carlo Incorvaia, Paolo Perri, Sergio D’Angelo, Giuseppe Lamberti, Adolfo Sebastiani, in Volume 63, Issue 3, pages 376-379

Aim

To investigate whether dorzolamide modifies peripapillary retinal haemodynamics in juvenile primary open‐angle glaucoma (JPOAG) patients treated with timolol.

Methods

In 40 JPOAG subjects, before and after dorzolamide coadministration with timolol, the following examinations were achieved: intraocular pressure (IOP), blood pressure (BP), ocular perfusion pressure (OPP), heart rate (HR), visual field and retinal flowmetry.

Results

Adjunctive therapy with dorzolamide induced the following modifications: IOP reduction [1.75 mmHg, 95% confidence interval (CI) 1.23, 2.26; P < 0.05], OPP increase (5.09 mmHg, 95% CI 2.97, 7.20; P < 0.02) and retinal blood flow improvement (35.0 arbitrary units, 95% CI 12.20, 57.80; P < 0.03). BP, HR and visual field indices did not change.

Conclusions

Dorzolamide, in association or in fixed combination with timolol, significantly improves retinal blood flow in JPOAG patients.

DOI: 10.1111/j.1365-2125.2006.02768.x

View this article