Relationship between age, corneal astigmatism, and ocular dimensions with reference to astigmatism in eyes undergoing routine cataract surgery

Eye
O Collier WakefieldM A Nanavaty

Abstract

To assess the relationship between age, corneal astigmatism, and ocular dimensions with reference to astigmatism correction during cataract surgery. In this cross-sectional study of right eyes of 2247 consecutive patients attending cataract surgery preassessment, data on patient demographics, axial length (AL), anterior chamber depth (ACD), and keratometric astigmatism were collected. Astigmatism was further analyzed as against-the-rule (ATR: steepest meridian 180±30°), with-the-rule (WTR: 90±30°), and oblique (OB: 30-60°or 120-150°). Mean age, AL, and ACD were 72.28±13.84 years, 23.99±1.85 mm and 3.08 ±0.52 mm, respectively. In all, 20.4% eyes had ≤0.50 diopters (D), 55.2% had 0.51-1.50 D, 7.9% had 2.01-3.00 D, and 3.7% eyes had >3.00 D of astigmatism. Overall, 44.2% of eyes had corneal astigmatism >1.00 D. Average astigmatism in age ranges 40-49, 50-59, 60-69, 70-79, 80-89, and 90+ years were 0.82, 1.04, 1.04, 1.02, 1.15 and 2.01 D, respectively. The magnitude of preoperative astigmatism positively correlated with age (P<0.0001), with increasing and decreasing prevalence of ATR and WTR astigmatism, respectively, with advancing age. The magnitude of ATR astigmatism inversely correlates to AL (P<0.0001). ATR astigmatism is more...Continue Reading

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Citations

Dec 13, 2017·BMC Ophthalmology·Yanin SuwanChaiwat Teekhasaenee
Jan 26, 2018·Acta Ophthalmologica·Kristian NaeserJesper Flethøj Bregnhøj
Oct 20, 2018·Current Opinion in Ophthalmology·Siyuan Li, Ying Jie
Jul 28, 2018·International Ophthalmology·Jasmin Zvorničanin
Sep 15, 2020·Journal of Cataract and Refractive Surgery·Aravind HaripriyaDavid F Chang
Oct 17, 2020·Journal of Cataract and Refractive Surgery·Xiangjia ZhuYi Lu

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