Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of Corneal ring, intrastromal

Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026

Corneal ring, intrastromal: A plastic ring designed to be implanted in the cornea in order to flatten the cornea and thereby correct, or reduce the degree of, nearsightedness (myopia). The ring is placed in the corneal stroma, the middle of the five layers of the cornea.