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Drugs Which Can Affect
Near Vision: A Useful List
Joanne L. Smith B.Sc., Ph.Phm.*
J. Raymond Buncic, M.D., F.R.C.S.(C)t
This paper documents a list of drugs that cause problems with near vision, by virtue of effects on accommodation, occasionally refractive error and diplopia. It is meant as a reference aid to the clinician when confronted with problems of focusing on near objects or print. There are many drugs that have been reported to interfere with near or reading vision, producing blurring, decreased accommodation and diplopia. This paper lists the drugs that have been reported in the literature to produce symptoms which interfere with near vision. Case reports for the listed drugs vary greatly from many to few. The drugs have been divided into the following categories: those causing (A) blurring at near, (B) diplopia and (C) induced myopia. Those drugs which only rarely cause these symptoms have been omitted. From the Departments of Pharmacy* and Ophthalmologyt, The Hospital For Sick Children, Toronto, Ontario, Canada Requests for reprints should be addressed to: Dr. J. Raymond Buncic, Department of Ophthalmology, The Hospital For Sick Children, 555 University Ave., Toronto, Ontario, Canada M5G lX8
DRUGS COMMONLY CAUSING DIFFICULTY WITH FOCUSING AT NEAR OR BLURRED VISION.
DRUGS WHICH LESS COMMONLY CAUSE DIFFICULTY WITH
TABLE 2 CONT.
DRUGS WHICH LESS COMMONLY
CAUSE DIFFICULTY WITH
LESS COMMON DRUG CAUSES.
CILIARY BODY CONTRACTION OR LENS HYDRATION
Note: These lists are not all inclusive. Some drugs which have been reported to cause blurred vision, myopia or diplopia were omitted because they are rarely used in clinical practice. REFERENCES 1.
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Key words: drug side effects, blurred vision, diplopia, myopia.
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