Arlt's line is a thick band of scar tissue in the conjunctiva of the eye, near the lid margin,[1][2] that is associated with eye infections.
Arlt's line is a characteristic finding of trachoma, an infection of the eye caused by Chlamydia trachomatis.
[2] The line runs horizontally, parallel to eyelid, and is found at the junction of the anterior one third and posterior two thirds of the conjunctiva.
[1] The line is named after the Austrian ophthalmologist Carl Ferdinand von Arlt.
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