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S Yamamoto, E Adachi-Usami; Apparent accommodation in pseudophakic eyes as measured with visually evoked potentials.. Invest. Ophthalmol. Vis. Sci. 1992;33(2):443-446.
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We measured apparent accommodation with pattern reversal visually evoked cortical potentials in 27 pseudophakic eyes after the implantation of posterior chamber intraocular lenses. The patients ranged in age from 47-83 years. The amplitude of accommodation was not significantly different between pseudophakic eyes and normal phakic eyes. Apparent accommodation was inversely proportional to the pupillary diameter and was significantly correlated with corneal astigmatism. No significant relationship was noted between apparent accommodation and age of patients, corrected visual acuity, or refractive error.
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