The term "superficial punctate keratitis" has been used by a number of ophthalmologists in this country and abroad to indicate any superficial keratitis associated with punctate opacities, either gross or microscopic. Over the years this has proven not only confusing but unnecessary, since almost without exception the various types of epithelial keratitis have been definable either as etiologic or as clinical entities.
The differentiation of these types of keratitis was the subject of a paper1 contributed by me in 1950. I urged then that each type be given its descriptive name, such as vernal epithelial keratitis, staphylococcic epithelial keratitis, trachomatous epithelial keratitis, measles epithelial keratitis, traumatic epithelial keratitis, etc., and described a clinical entity, as yet unclassified and of unknown etiology, for which the term "superficial punctate keratitis" seemed peculiarly appropriate. In the same year, in a paper on virus diseases of the cornea, Braley2 mentioned his experience
THYGESON P. Further Observations on Superficial Punctate Keratitis. Arch Ophthalmol. 1961;66(2):158-162. doi:10.1001/archopht.1961.00960010160004