ArticleCureus2025
Atrioventricular Block Caused by Carteolol Eye Drops Administered to Unilateral Eye or Bilateral Eyes: A Case Report.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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2 authors.
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Abstract
Ophthalmic beta-blocker carteolol can rarely cause cardiovascular effects such as bradycardia, heart block, and hypotension. We report a case of carteolol eye drops induced atrioventricular (AV) block. A 76-year-old man with type 2 diabetes developed exercise-induced second-degree AV block, which improved after discontinuing carteolol eye drops in the unilateral eye. Six months later, third-degree AV block recurred due to inadvertent reuse of carteolol eye drops in bilateral eyes despite its prohibition. A seven-day patch electrocardiogram (ECG) monitor showed AV conduction returned to a 1:1 ratio after discontinuation of eye drops. The pacemaker implantation was deferred, and he is currently under close follow-up. Depending on the amount administered to a unilateral eye or bilateral eyes, topical carteolol eye drops can cause second- or third-degree AV block.
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