UMEM Educational Pearls

Category: Toxicology

Title: Eye Drops and Effect on Pupil Size

Keywords: eye drops, pupil size, ophthalmic (PubMed Search)

Posted: 9/8/2015 by Bryan Hayes, PharmD (Emailed: 9/10/2015) (Updated: 9/11/2015)
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In the evaluation of ED patients, it may be important to understand the effect on pupil size from the ophthalmic medications they use. Here is a summary chart of common eye drops and their effect on pupil size.


  • Drug Facts and Comparisons. Facts & Comparisons [database online]. St. Louis, MO: Wolters Kluwer Health, Inc. Accessed September 8, 2015.
  • Hendere JD, Rapuano CJ. Chapter 64. Ocular Pharmacology. In: Brunton LL, Chabner BA, Knollman BC. eds. Goodman & Gilman's The Pharmacological Basis of Therapeutics, 12. New York, NY: McGraw-Hill;2011. Accessed September 8, 2015.
  • Novitskaya ES, et al. Effects of some ophthalmic medications on pupil size: a literature review. Can J Ophthalmol 2009;44:193-7. [PMID 19491955]

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