Although the literature on keratoconus is voluminous, reports of acute ectasia occurring in the course of the disease are relatively rare. Such reports as are available in the literature are recorded under the title of acute ectasia, although ectasia is not always marked nor is it always present. The bulging of the cornea, its increase in depth and the opacity of the stroma are all due to its invasion and water-logging by the aqueous humor, and for this reason we feel that the term "acute hydrops of the cornea" is more definitely descriptive of this complication of keratoconus. The opportunity to study such a case and to record the progressive steps in the condition by photography and drawings impel us to publish this report in order to provide some encouragement for patients and oculists who may at some future date face this alarming complication.
Duke-Elder stated that this condition "is
RYCHENER RO, KIRBY DB. ACUTE HYDROPS OF THE CORNEA COMPLICATING KERATOCONUS. Arch Ophthalmol. 1940;24(2):326–343. doi:10.1001/archopht.1940.00870020118011
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