• Ophthalmic examinations of 55 retired boxers showed nine eyes with contusion angle deformities and no cases of secondary glaucoma due to the trauma, despite an average duration of 33 years since injury. The subjects with chamber angle recessions had more proptotic eyes (average, 19.7 mm) than those without recessions (average, 17.9 mm). The difference between the means was not significant (P <.05).
Palmer E, Lieberman TW, Burns S. Contusion Angle Deformity in Prizefighters. Arch Ophthalmol. 1976;94(2):225-228. doi:10.1001/archopht.1976.03910030105005