June 2017
Volume 58, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2017
Clinical outcome of two 1-piece hydrophobic acrylic intraocular lens insertion of different properties in primary angle closure glaucoma patients
Author Affiliations & Notes
  • Chang Kyu Lee
    Ophthalmology, Ulsan University Hosipital, Ulsan, Korea (the Republic of)
  • Ji Hyoung Chey
    Department of Ophthalmology, Maryknoll Medical Center, Busan, Korea (the Republic of)
  • Footnotes
    Commercial Relationships   Chang Kyu Lee, None; Ji Hyoung Chey, None
  • Footnotes
    Support  none
Investigative Ophthalmology & Visual Science June 2017, Vol.58, 1143. doi:
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    • Get Citation

      Chang Kyu Lee, Ji Hyoung Chey; Clinical outcome of two 1-piece hydrophobic acrylic intraocular lens insertion of different properties in primary angle closure glaucoma patients. Invest. Ophthalmol. Vis. Sci. 2017;58(8):1143.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : To compare clinical outcomes and find out proper formula of two 1-piece hydrophobic acrylic intraocular lens(IOLs) insertion of different properties in primary angle closure glaucoma patients.

Methods : Total 66 eyes of 55 primary angle closure glaucoma patients had undergone phacoemulsification with posterior chamber(PC) IOL implantation operated by the one surgeon from 2013 to 2016 were included. Postoperative best corrected visual acuity(BCVA), intraocular pressure(IOP), spherical equivalent(SE), and effective lens position(ELP) during 6 months after insertion of two 1-piece hydrophobic acrylic IOLs of different physical properties(Envista MX60, Tecnis ZCB00) were obtained for statistical analysis.

Results : 28 eyes in the Envista group and 34 eyes in the Tecnis group were included. Postoperative BCVA and IOP were significantly different after 6 months but no significant differences between two IOL groups(p=0.058). In the Envista group, SE changes were smaller than those of the Tecnis group at postoperative 1, 3, and 6 months. Postoperative predicted refractive error(RE) at 6 months showed a narrow range in values in the Envista group while extreme values appeared in the Tecnis group. The relevance between predicted targets by IOL master with different formula-SRL/T, HofferQ, and Haigis, and postoperative SE at 6 months in entire eyes were evaluated using Pearson's correlation coefficients(0.393, 0.416, and 0.422 with p=0.002, p=0.001, and p=0.001 respectively). Pearson's correlation coefficients was the biggest with predicted targets by the Haigis formula in both the Envista and the Tecnis group(0.798, p<0.001, and 0.524, p=0.002), while coefficient was greater in the Envista group.

Conclusions : Envista MX60 is an IOL with a higher glass transition temperature and greater haptic compression force than Tecnis ZCB00. In this study, less fluctuation in postoperative SE and a narrower range of postoperative RE in the Envista group than in the Tecnis group imply more stability acquired with a stiffer IOL in PACG eyes. Moreover, the Haigis formula proved to be more effective in predicting postoperative refractive targets than the HofferQ formula in PACG, and showed the higher predictability of postoperative refractive targets in eyes with Envita IOL than Technis IOL.

This is an abstract that was submitted for the 2017 ARVO Annual Meeting, held in Baltimore, MD, May 7-11, 2017.

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