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Bing Du, Xunqing GU Shenzhen Eye Hospital Shenzhen, Guangdong, China

Clinical Comparative Study of Aspheric and Spherical Intraocular Lenses (All authors have no competing interest to declare. ). Bing Du, Xunqing GU Shenzhen Eye Hospital Shenzhen, Guangdong, China. Purpose:

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Bing Du, Xunqing GU Shenzhen Eye Hospital Shenzhen, Guangdong, China

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  1. Clinical Comparative Study of Aspheric and Spherical Intraocular Lenses (All authors have no competing interest to declare. ) Bing Du, Xunqing GU Shenzhen Eye Hospital Shenzhen, Guangdong, China

  2. Purpose: • To compare contrast sensitivity and visual quality on pseudophakic patients with an upgraded prolate aspheric intra-ocular lens (IOL) and the patients with a conventional spherical intra-ocular lens.

  3. Methods: • 187 cases with age-related cataract from April 2006 to August 2008 in our hospital were divided into two groups and underwent phaocoemulsification with an aspheric IOL or a spherical IOL randomly. One month post-surgery, the best corrected visual acuity, the contrast sensitivity with and without glare and the aberration were recorded.

  4. Results: • The best corrected visual acuity had no statistic significant difference between these two groups (P=0.074) .

  5. The contrast sensitivity of 3, 6, 12, and 18 cyc/deg had statistic significant difference (P=0.000). The contrast sensitivity of the aspheric IOL group was higher than that of the other group with and without glare. (A for the aspheric IOL group, S for the spherical IOL group.)

  6. There was statistical difference in the two groups in the aberration (P=0.000). In the aberration, the spherical IOL group was higher than aspheric IOL group.

  7. Conclusion: • Compared to spheric IOL, the aspheric IOL may reduce the aberration and increase the contrast sensitivity, and improve visual performance of pseudophakic eyes.

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