2008, Number 1
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Rev Med Hosp Gen Mex 2008; 71 (1)
The contrast sensitivity in the early diagnostic of chloroquine retinopathy
Tenorio G, Zambrano SP
Language: Spanish
References: 14
Page: 20-28
PDF size: 114.42 Kb.
ABSTRACT
Introduction: Chloroquine is indicated frequently in rheumatic and dermatologic diseases as an anti-inflammatory and to protect the photosensibility reactions of the skin. One of the adverse effect of the chloroquine is that it is deposited in the retinal pigment.
Objective: to determine the efficacy of the contrast sensitivity test (CST) in patients with chloroquine treatment, comparing dose per day.
Methods: We reviewed 52 medical histories of patients under chloroquine treatment for more than one year, including with visual acuity (VA) of 20/40 or better because the CST works with this lines of VA.
Results: From the 52 patients, studied 51 women, the diagnostic was of rheumatoid arthritis in 52%, eritematosus lupus in the 46% and the rest dermatitis solar. The VA were 20/20, 20/25,20/30 and 20/40. The CST was normal. The fundus eye was abnormal in 2 patients with lupus eritematosus, they had subfoveal pigment, with VA of 20/30 and were taking 300 mg and 450 mg of chloroquine daily.
Conclusions: The CST did not demonstrate difference with normal spacial frequencies, maybe only the total dose is retino-toxic.
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