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Treatment of ametropic presbyopes with combined transepithelial photorefractive keratectomy (TransPRK) and small-aperture corneal inlay implantation

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Session Details

Session Title: Presented Poster Session: Corneal Inlays

Session Date/Time: Tuesday 08/09/2015 | 09:30-11:00

Paper Time: 10:30

Venue: Poster Village: Pod 2

First Author: : M.Arbelaez OMAN

Co Author(s): :    J. Arbelaez              

Abstract Details


To evaluate the visual performance of patients implanted with a small-aperture corneal inlay in a newly created lamellar pocket following a transepithelial PRK (TransPRK) performed with the Schwind Amaris excimer laser.


Muscat Eye Laser Center, Oman.


Four subjects underwent a monocular small-aperture corneal inlay insertion into a secondary lamellar pocket created with a femtosecond laser in the non-dominant eye one month after the TransPRK procedure. The target refraction for the TransPRK procedure was -0.50D. Monocular and binocular uncorrected distance, intermediate and near visual acuities (UDVA, UIVA, UNVA) were measured. Decimal acuity results are reported mean ± standard deviation. Outcomes data are currently available out to 12 months.


In the implanted eye, UNVA improved 5 lines from 0.24 ± 0.11 preop to 0.72 ± 0.10 at month 12. UCDVA remained constant, 0.86 ± 0.18 at preop and 0.90 ± 0.12 at month 12. UIVA improved 4 lines from 0.41 ± 0.07 at preop to 0.80 ± 0.00 at month 12. 100% of patients achieved 0.8 or better UDVA and UNVA binocularly at month 12. Mean manifest refractive spherical equivalent (MRSE) was -0.28D ± 0.21D at month 12. MRSE at all-time points were within ± 0.50D from achieved target refraction at month 1.


The results from this study demonstrate excellent visual acuities and refractive stability in patients undergoing small aperture corneal inlay implantation following TransPRK for refractive correction. No intra-operative or post-operative complications were found. Further investigation of this technique is warranted.

Financial Interest:


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