An Incidental Iris Finding

Prominent iris collarette
A 37-year-old woman presents with allergic conjunctivitis, but a slit-lamp exam reveals an incidental and unusual finding on her iris. What is it?
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Fast-Growing Eyelid Lesion

Pyogenic granuloma
A 30-year-old man develops a rapidly growing lesion on his eyelid just weeks after a cyst ruptured. Explore the diagnosis for this benign vascular growth.
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A Teen’s Blurry, Painful Vision

Intraocular parasite infection
A 17-year-old boy presents with a 3-week history of decreased vision and eye pain. What could be the surprising cause found on slit lamp examination?
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When Vision Blurs & Limbs Elongate

Ectopia lentis
A 41-year-old man presents with progressive vision loss. Physical exam reveals pectus excavatum and elongated digits. Explore this classic presentation.
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The Painful Red Eye

Acute angle-closure glaucoma
A 52-year-old woman presents with severe eye pain and blurred vision. Explore the differential diagnosis for this ophthalmologic emergency.
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A Dizzying Case of Red Eyes

Cogan's syndrome
A case of a young woman with interstitial keratitis and vestibuloauditory dysfunction. Uncover the diagnosis and management of this rare inflammatory disorder.
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A Curious Case of Blue Sclerae

Minocycline-induced pigmentation
A 70-year-old man presents with progressive blue discoloration of his sclerae after 15 years on a common medication. What is the diagnosis?
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Mysterious Migrating Facial Nodule

Dirofilaria repens infection
A 32-year-old woman develops migrating nodules on her face after traveling. Discover the cause of these itchy, moving lumps linked to mosquito bites.
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The Mystery of Bloody Tears

Adverse reaction to systemic antibiotics
A 52-year-old man presents with painless bloody tears (hemolacria). Explore the differential diagnosis, from common causes to the ultimate finding in this case.
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A Bull’s-Eye in the Visual Field

Hydroxychloroquine toxicity
A 60-year-old woman with rheumatoid arthritis develops central blind spots. Explore the retinal findings and differential diagnosis for bull's-eye maculopathy.
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