RT Journal A1 Daien V, Pérès K, Villain M, Colvez A, Delcourt C, Carrière I T1 Visual impairment, optical correction, and their impact on activity limitations in elderly persons: The pola study JF Archives of Internal Medicine JO Archives of Internal Medicine YR 2011 FD July 11 VO 171 IS 13 SP 1206 OP 1207 DO 10.1001/archinternmed.2011.140 UL http://dx.doi.org/10.1001/archinternmed.2011.140 AB The loss of autonomy among older persons is a major public health issue. In the disablement process model,1 chronic and acute conditions lead to psychological and physical deficiencies and ultimately to difficulty in performing activities of daily life. In elderly persons, visual impairment is one of the major deficiencies leading to activity limitations and can be caused by either eye trauma or ocular diseases (affecting the ability to receive or process visual information), or by refractive errors (a failure of the eye to focus images sharply on the retina). Refractive errors affect approximately a third of the US and Western European populations.2