Wavefront aberration and contrast sensitivity after implantation of foldable and rigid iris claw phakic intraocular lenses: Artiflex versus artisan.
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Date
2016-05
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Abstract
Aim of study: The aim of this study is to assess wavefront aberration and contrast sensitivity (CS) after
implantation of foldable iris claw – artiflex‑ and rigid iris claw – artisan‑ phakic intraocular lenses (pIOLs).
Materials and Methods: A nonrandomized prospective comparative case study was performed on 57 eyes;
of which, 54 were myopia and 3 were hyperopia. Twenty‑four patients had artisan pIOL implantation
and 33 had artiflex pIOL implantation. Higher‑order aberration (HOA) and CS were obtained 1 year after
surgery. Results: Total HOA in artisan group was greater than artiflex group (P = 0.044) with a mean HOA
of 0.44 ± 0.15 root mean square (RMS) for artisan and 0.35 ± 0.15 RMS for artiflex. Although, there were no
significant differences in the vertical trefoil, vertical coma, horizontal trefoil, horizontal coma, secondary
astigmatism, quatrefoil, and fourth order spherical aberration in two groups. CS in mesopic conditions was
better in artiflex‑treated eyes at three spatial frequencies of 6, 12, and 18 cycles per degree (cpd) (P = 0.003,
P = 0.007, and P = 0.00, respectively), and no significant difference was seen between two lenses at 3 cpd.
Conclusion: Although the components of HOA were not significantly different between two groups, total
HOA was higher in artisan group, which may be due to the slight differences in each component, increasing
the HOA as a total. CS was significantly better in artiflex group.
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Keywords
Artiflex phakic intraocular lens, artisan phakic intraocular lens, contrast sensitivity, higher order aberration, wavefront aberration
Citation
Parsipour Faroogh, Razmju Hassan, Khatavi Fatima, Panahi Maryam, Nouralishahi Alireza, Peyman Alireza. Wavefront aberration and contrast sensitivity after implantation of foldable and rigid iris claw phakic intraocular lenses: Artiflex versus artisan. Indian Journal of Ophthalmology. 2016 May; 64(5): 382-386.