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Thygeson's Superficial Punctate KeratopathyThygeson's superficial punctate keratopathy (TSPK) is a disease of the eyes. The causes of TSPK are not currently known, but details of the disease were first published in the Journal of the American Medical Association in 1950 by Phillips Thygeson - after whom it is named. Symptoms A patient with TSPK may complain of blurred vision, watery eyes, a sensation of having a foreign body stuck in the eye and sensitivity to bright light. On inspection with a slit lamp, tiny lumps can be found on the cornea of the eye. These lumps can be more easily seen after applying fluorescein or rose bengal dye eye-drops. The lumps appear to be randomly positioned on the cornea and they may appear and disappear over a period of time (with or without treatment). TSPK may affect one or both eyes. When both eyes are affected, the tiny lumps found on the cornea may differ in number between eyes. The severity of the symptoms often vary during the course of the disease. The disease may appear to go into remission, only to later reappear after months or years. Causes The causes of TSPK are not currently known. It has been suggested that it may be caused by or related to varicella zoster virus or chlamydia trachomatis. Treatment There are a number of different treatments to deal with TSPK. Symptoms may disappear without treatment, but treatment may help increase time to and success of remission. Reference - Thygeson P. Superficial punctate keratitis. J Am Med Assoc 1950;144:1544-9. PMID 14794375.
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