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Nonarteritic Ischemic Optic Neuropathy (NAION) in Patient on Phosphodiesterase Inhibitor

Purpose:

To identify nonarteritic ischemic optic neuropathy (NAION) in a patient taking a phosphodiesterase (PDE) inhibitor.

Specialty:

Neurology, Psychiatry, Ophthalmology & Otolaryngology
Cardiology

Objective:

adverse effects

ICD-10:

T50.9, H47.0

Description:

A patient who takes a phosphodiesterase (PDE) inhibitor may develop nonarteritic ischemic optic neuropathy (NAION). It is uncertain if the PDE inhibitor is the cause of the NAION or just being taken coincidentally in a patient with poor ocular perfusion. Fortunately this is a rare condition.

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