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'Salzmann's Nodular Degeneration' Salzmann's Nodular Degeneration is a rare, noninflammatory, degenerative condition of the cornea. It is characterized by raised, bluish-white nodules on the surface of the cornea. It progresses slowly, and is largely asymptomatic early on. When they do present, symptoms include dry eyes, decrease in visual acuity, and contact lens intolerance. The nodules are visible with the naked eye.

Etiology
Salzmann's has been associated with a history of phlyctenulosis, trachoma, vernal keratoconjunctivitis, measles, scarlet fever, and various other viral diseases. However, many cases present without any such history.