Young J D, Finlay R D
Am J Ophthalmol. 1975 Jan;79(1):129-34. doi: 10.1016/0002-9394(75)90470-5.
The reported prevalence and severity of primary spheroidal degeneration in Labrador and nothern Newfoundland is based on a survey of 929 patients. The degeneration is associated with man in outdoor occupations and with pinguecula, but not with glaucoma. Ultraviolet radiation is a probable causative factor and prophylaxis using appropriately filtering glass a possibilty.
据报道,拉布拉多和纽芬兰北部原发性球状变性的患病率和严重程度是基于对929名患者的调查得出的。这种变性与从事户外职业的人以及睑裂斑有关,但与青光眼无关。紫外线辐射可能是一个致病因素,使用适当的滤光玻璃进行预防是有可能的。