Refractive outcomes comparison between the Lenstar LS 900? optical biometry and immersion A-scan ultrasound

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• 作者：Palanyraj Naicker ; Siva Sundralingam ; Mohammadreza Peyman…
• 关键词：Refractive outcomes ; Lenstar LS 900? ; Immersion A ; Scan ultrasound ; Phacoemulsification
• 刊名：International Ophthalmology
• 出版年：2015
• 出版时间：August 2015
• 年：2015
• 卷：35
• 期：4
• 页码：459-466
• 全文大小：476 KB
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• 作者单位：Palanyraj Naicker (1)
  Siva Sundralingam (1)
  Mohammadreza Peyman (1)
  Azida Juana (1)
  Nor Fadhilah Mohamad (1)
  Maung Maung Win (1)
  Angela Loo (1)
  Visvaraja Subrayan (1)
  
  1. Department of Ophthalmology, University of Malaya, 59100, Kuala Lumpur, Malaysia
  
• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Ophthalmology
  
• 出版者：Springer Netherlands
• ISSN：1573-2630

文摘

To determine the accuracy of intraocular lens (IOL) calculations in eyes undergoing phacoemulsification cataract surgery with IOL implantation using immersion A-scan ultrasound (US) and Lenstar LS 900? biometry. In this prospective study, 200 eyes of 200 patients were randomized to undergo either Lenstar LS 900? or immersion A-scan US biometry to determine the IOL dioptric power prior to phacoemulsification cataract surgery. Post-operative refractive outcomes of these two groups of patients were compared. The result showed no significant difference between the target spherical equivalent (SE) and the post-operative SE value by the Lenstar LS 900? (p value?=?0.632) or immersion A-scan US biometry (p value?=?0.438) devices. The magnitude of difference between the two biometric devices were not significantly different (p value?=?0.868). There was no significant difference in the predicted post-operative refractive outcome between immersion A-scan US biometry and Lenstar LS 900?. Based on the results, the immersion A-scan US technique is as accurate as Lenstar LS 900? in the hands of an experienced operator.