🐊 What is Crocodile Shagreen?
During a routine eye exam, sometimes you may come across a grayish, crocodile skin–like pattern on the back layer of the cornea. This condition is called Crocodile Shagreen.
It typically appears in the posterior stromal layer of the cornea, near Descemet’s membrane, and presents as a mosaic pattern of small gray polygonal opacities—hence the name.
🔍 Other Names
- Posterior mosaic crocodile shagreen
- Vogt posterior crocodile shagreen (first described in 1927 by Vogt)
🧬 What causes it?
The condition is usually due to age-related changes in collagen fiber arrangement within the cornea. It may rarely be congenital, but...
✅ It does not affect vision,
✅ And requires no treatment.
✨ In Summary
Crocodile shagreen is a benign, age-related reflection pattern of the cornea that does not interfere with vision or eye health. It’s often discovered incidentally during eye exams and should not be a cause for concern.
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