. Author manuscript; available in PMC: 2010 Jul 1.

Published in final edited form as: Ophthalmology. 2009 Jul;116(7):1366–1369. doi: 10.1016/j.ophtha.2009.01.052

Table 1. Incidence of Macular Holes in Olmsted County, Minnesota (1992-2002), Adjusted for Age and Sex.

Mechanism of Hole Formation	N (%)	Incidence of affected eyes per 100,000 population per year (95%CI)
All	94 (100)	9.38 (7.47-11.28)
Idiopathic	86 (91.5)	8.69 (6.85-10.53)
Traumatic	2 (2.1)	0.14 (0.00-0.33)
Other^*	6 (6.4)	0.54 (0.10-0.99)

Three patients following retinal detachment repair, one patient following macular translocation surgery with scleral imbrication, one patient after unspecified eye surgery, and one patient with chronic inflammation.

CI=confidence interval