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To the Editor: Dr Owsley and colleagues¹ found that adults with cataracts were less likely to be involved in motor vehicle crashes if they underwent cataract surgery. Owsley et al acknowledge that their study was not designed to measure the potential impact of unilateral vs bilateral cataract surgery on risk of motor vehicle crashes. It is possible, however, that having dissimilar vision in the 2 eyes may actually increase the likelihood of crashes. For instance, Felson et al² found an increased risk of falls and fractures among subjects with good vision in one eye and poor vision in the other.

My colleagues and I have reported 2 studies^3-4 in which quality of life was measured in persons undergoing cataract surgery in either one or both eyes. Like the study of Owsley et al, these were nonrandomized, observational studies. In both studies, surgery in the second eye was associated with an . . . [Full Text of this Article]

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Impact of Cataract Surgery on Motor Vehicle Crash Involvement by Older Adults
Cynthia Owsley, Gerald McGwin, Jr, Michael Sloane, Jennifer Wells, Beth T. Stalvey, and Scott Gauthreaux
JAMA. 2002;288(7):841-849.
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