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Graefe's Archive for Clinical and Experimental Ophthalmology

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01-07-2019 | Cataract | Refractive Surgery

Use of low-vault posterior chamber collagen copolymer phakic intraocular lenses for the correction of myopia: a 3-year follow-up

Authors: Khosrow Jadidi, Seyed Aliasghar Mosavi, Farhad Nejat, Neda Mohammadi, Hosein Aghamolaei, Seyed-Hashem Daryabari, Hamidreza Torabi, Aliagha Alishiri

Published in: Graefe's Archive for Clinical and Experimental Ophthalmology | Issue 7/2019

Abstract

Background

Phakic intraocular lens (pIOL) models have indicated an association between cataract formation and inadequate vaulting. In this study, the efficacy and safety of low-vault posterior chamber pIOLs in the correction of myopia were examined over 3 years.

Methods

From 316 patients undergoing surgery, 14 eyes with a low vault (≤ 150 μm) were examined from 14 patients. After implanting the Visian Implantable Collamer pIOL for the correction of myopia (moderate and high), the pIOL vault, endothelial cell loss, uncorrected distance visual acuity (UDVA), corrected DVA (CDVA), and detrimental events were examined over 3 years.

Results

Based on the findings, the mean spherical equivalent reduced from − 8.15 ± 3.29 before surgery to − 1.02 ± 0.75 diopters 3 years after the surgery. In terms of visual outcomes, the mean UDVA (Log MAR) significantly increased from 0.95 ± 037 to 0.27 ± 0.28, and the mean CDVA also increased from 0.99 ± 0.11 to 0.06 ± 0.08 (P < 0.05). The mean indices of safety and efficacy were respectively 1.075 and 0.748. The eyes lost not more than two visual acuity lines. Based on the findings, 82% achieved 0.80 or better CDVA, while the total endothelial cell loss was 7.96% during 3 years. Overall, vision-threatening conditions were not reported.

Conclusion

The introduced pIOL can be considered a safe and efficient method for myopia at moderate to high levels.

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Title: Use of low-vault posterior chamber collagen copolymer phakic intraocular lenses for the correction of myopia: a 3-year follow-up
Authors: Khosrow Jadidi
Seyed Aliasghar Mosavi
Farhad Nejat
Neda Mohammadi
Hosein Aghamolaei
Seyed-Hashem Daryabari
Hamidreza Torabi
Aliagha Alishiri
Publication date: 01-07-2019
Publisher: Springer Berlin Heidelberg
Keyword: Cataract
Published in: Graefe's Archive for Clinical and Experimental Ophthalmology / Issue 7/2019
Print ISSN: 0721-832X
Electronic ISSN: 1435-702X
DOI: https://doi.org/10.1007/s00417-019-04336-9

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Use of low-vault posterior chamber collagen copolymer phakic intraocular lenses for the correction of myopia: a 3-year follow-up

Abstract

Background

Methods

Results

Conclusion

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Abstract

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