A degenerative process occurring in the peripheral cornea characterized by corneal thinning. It is frequently associated with rheumatoid arthritis in which case there is epithelial defects and progressive ulceration. Furrows may also occur in corneal arcus without epithelial defect or vascularization. Syn. limbal furrow.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann