: a new causative species of infectious keratitis.

A 25-year-old man presented with a 2-month history of progressively worsening left eye pain and an atypical corneal ring infiltrate. His condition deteriorated despite topical antibiotic therapy. Cultures for bacteria, fungus and acanthamoeba, repeated twice, all demonstrated no growth.

Rise and regional disparities in buprenorphine utilization in the United States.

Purpose: Buprenorphine is an opioid partial agonist used to treat opioid use disorder. While several policy changes have attempted to increase buprenorphine availability, access remains well below optimal levels. This study characterized how buprenorphine utilization in the United States has changed over time and whether there are regional disparities in distribution of the medication.

Peripheral ulcerative keratitis associated with vasculitis manifesting asymmetrically as fuchs superficial marginal keratitis and terrien marginal degeneration.

Purpose: To report a case of bilateral peripheral corneal thinning with an appearance of Fuchs superficial marginal keratitis in the right eye and Terrien marginal degeneration in the left eye.

Methods: Interventional case report.

Results: A 28-year-old woman presented with bilateral corneal thinning and a pseudopterygium in the right eye and peripheral corneal thinning in the left eye.