Iron Lines

Any irregularity in the surface of the cornea causes the eyelid to distribute the tear film irregularly over the surface of the cornea; a small puddle of tear fluid will be present at the site of the irregularity. Iron deposits form in a characteristic manner at this site in the corneal epithelium. The most frequently observed iron lines are the physiologic iron deposits at the site where the eyelids close (the Hudson-Stahli line), Stocker-Busacca line with pterygium, Ferry's line with a filtering bleb after glaucoma surgery, and Fleischer ring with keratoconus. Iron lines have also been described following surgery (radial keratotomy; photorefractive keratectomy; keratoplasty) and in the presence of corneal scars.

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How To Reduce Acne Scarring

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