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Review

Topiramate and the vision: a systematic review

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Pages 117-131 | Published online: 12 Jan 2012
 

Abstract

Background and purpose

Topiramate (TPM) is a sulfa-derivative monosaccharide that is used mainly for treating epilepsy and preventing migraine. Within the gamut of side effects attributable to this drug, ophthalmologic manifestations are of crucial importance. In this study, for the first time, the aim was to provide a systematic literature review regarding this issue.

Methods

For the time period 1996–2011, a PubMed search was made for the studies concerning the adverse/beneficial effects of TPM on vision. Overall, 404 citations out of a total of 2756 TPM-related studies were examined for relevance.

Results

A total of 74 relevant studies were reviewed, 65 of which comprise small observational studies describing the ophthalmic side effects of TPM in 84 patients. Of these patients, 66 were affected by ciliochoroidal effusion syndrome as the cardinal ocular side effect of TPM (17 cases of myopic shift and 49 cases of angle closure glaucoma). A comprehensive statistical analysis is provided on these 66 subjects. Other rare side effects of TPM on the vision were also reviewed, including massive choroidal effusion, ocular inflammatory reactions, visual field defects, probable effects on retina, cornea, and sclera, and neuroophthalmologic complications. In addition, a framework is provided to classify these results.

Discussion

Due to the expanding spectrum of indications for the administration of TPM, neurologists and psychiatrists should be aware of its diverse ocular side effects. In conclusion, ocular complications following this drug should be taken seriously and be subjected to ophthalmic counseling.

Acknowledgments

The authors are eternally grateful to Jeffrey L Berlant (American Board of Psychiatry and Neurology) and Douglas J Rhee (Massachusetts Eye and Ear Infirmary, Harvard Medical School) for their help in the literature review process. This study is dedicated to the memory of Dr Afsane Khandan (Iranian internist) who devoted her precious life to health development and medical research. This study was funded by SHARNOS and Co (Knowledge of Vision and Motion).

Disclosure

The authors report no conflicts of interest in this work.