Can caffeine affect intraocular pressure (IOP)?
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For years it was thought that caffeine had no affect on IOP, except in rare instances. Now, with the concept of non-pressure dependent factors such as constriction of the veins or arteries and ocular blood flow, the question is being debated again, since caffeine can affect blood flow. There is no conclusive answer, but too much caffeine is not recommended – especially if you have cardiovascular problems or migraines. As always, only a doctor who examines your eyes can determine the most appropriate treatment for you or answer questions about your specific condition. If you remain unsure or uncomfortable with your options, we recommend seeking a second opinion.
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