Efficacy of Sustained Topical Dorzolamide Therapy for Cystic Macular Lesions in Patients with Retinitis Pigmentosa and Usher Syndrome
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Title: |
Efficacy of Sustained Topical Dorzolamide Therapy for Cystic Macular Lesions in Patients with Retinitis Pigmentosa and Usher Syndrome |
Author(s): |
Genead, Mohamed A.; Fishman, Gerald A.
|
Abstract: |
Objectives: To determine the efficacy for sustained use of topical therapy with dorzolamide hydrochloride 2% on visual acuity and cystic macular lesions in retinitis pigmentosa (RP) and Usher (USH) syndrome patients.
Design: Retrospective case series.
Setting: University hospital.
Patients: Sixty-four eyes of 32 patients with RP or USH syndrome who received treatment with topical dorzolamide formulation for a duration ranging from 6-58 months were enrolled.
Main Outcome Measures: Changes in visual acuity (ETDRS) and central foveal zone thickness on optical coherence tomography during follow-up for the duration of treatment.
Results: Among the study cohort, a positive response occurred in 20 of 32 patients (63%) in at least one eye and in 13 patients (41%) in both eyes. Four patients (20%) showed an initial response and a subsequent rebound of macular cysts. In 8 patients (25%) there was no response to treatment and the macular cysts worsened when compared with the pretreatment level. Ten patients (31%) had improvement in visual acuity by ≥7 letters in at least one eye at the most recent follow-up visit. Sixteen patients (67%) showed a reduction of >11% in the central foveal zone thickness in at least one eye when compared with the pretreatment level.
Conclusion: Treatment of cystoid macular edema with topical dorzolamide in patients with either RP or USH syndrome and followed by an OCT-guided strategy showed a decrease in central foveal zone thickness in the majority of cases. Visual acuity improved in almost 1/3 of the cases, suggesting a potential corresponding visual benefit. |
Issue Date: |
2010-09 |
Publisher: |
American Medical Association |
Citation Info: |
Genead M. A., Fishman G. A. 2010. Efficacy of sustained topical dorzolamide therapy for cystic macular lesions in patients with retinitis pigmentosa and usher syndrome. Archives of Ophthalmology, 128(9): 1146-50. doi:10.1001/archophthalmol.2010.172 |
Type: |
Article |
Description: |
Post print version of article may differ from published version. The definitive version is available through the American Medical Association at http://archopht.jamanetwork.com/issues.aspx.
doi:10.1001/archophthalmol.2010.172 |
URI: |
http://hdl.handle.net/10027/8561
|
ISSN: |
0003-9950 |
Sponsor: |
Supported by funds from the Foundation Fighting Blindness, Owings Mills, Maryland; Grant Healthcare Foundation, Lake Forest, Illinois; NIH core grant EYO1792; and an unrestricted departmental grant from Research to Prevent Blindness. |
Date Available in INDIGO: |
2012-08-20 |
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