TY - JOUR
T1 - Status of Residual Refractive Error, Ocular Aberrations, and Accommodation After Myopic LASIK, SMILE, and TransPRK
AU - Shetty, Karen
AU - Dadachanji, Zelda
AU - Narasimhan, Raghav
AU - Kundu, Gairik
AU - Khamar, Pooja
AU - Ahuja, Prerna
AU - Kumar, Vijay
AU - Kumar, Vikas
AU - Shetty, Rohit
AU - Nuijts, Rudy M. M. A.
AU - Roy, Abhijit Sinha
N1 - Funding Information:
Dr. Nuijts is a consultant for Alcon, Asico, Chiesi, and Theapharma, and a speaker for Abbott, Alcon, Bausch & Lomb, Carl Zeiss, Chiesi, HumanOptics, Ophtec, Oculentis, and Gebauer. The remaining authors have no financial or proprietary interest in the materials presented herein.
Publisher Copyright:
© 2019 Slack Incorporated. All rights reserved.
PY - 2019/10
Y1 - 2019/10
N2 - PURPOSE: To analyze residual refractive error, ocular aberrations, and visual acuity (VA) during accommodation simultaneously with ocular aberrometry in eyes after laser-assisted in situ keratomileusis (LASIK), small incision lenticule extraction (SMILE), and transepithelial photorefractive keratectomy (TransPRK).METHODS: Ocular aberrometry (Tracey Technologies, Houston, TX) was performed 3 months after LASIK (n = 95), SMILE (n = 73), and TransPRK (n = 35). White measuring the aberrations, VA was measured at distance (20 ft), intermediate (60 cm), and near (40 cm) targets. The examinations were done monocularly. A parallel group of age-matched normal eyes (n = 50) with 20/20 Snellen distance VA also underwent aberrometry.RESULTS: Distribution of residual spherical error of LASIK eyes matched the normal eyes the best, followed by SMILE and TransPRK. However, the distribution of cylindrical error of the SMILE eyes was distinctly different from the rest (P <.05). The SMILE eyes tended to be undercorrected by approximately 0.25 diopters (D) on average at all reading targets compared to LASIK eyes (P <.05). The undercorrection was greater when the magnitude of the preoperative cylinder exceeded 0.75 D (P <.05). The VA of LASIK and SMILE eyes was similar to normal eyes at all targets, but the TransPRK eyes were marginally inferior (P <.05). Only the ocular defocus changed differentially between the study groups during accommodation and the magnitude of change was least for TransPRK eyes (P <.05). However, postoperative near and intermediate accommodation of LASIK eyes were similar to normal eyes, followed by SMILE eyes and then TransPRK eyes.CONCLUSIONS: The refractive and aberrometric status of the LASIK eyes was closest to the normal eyes. The SMILE procedure may benefit from slight overcorrection of the preoperative refractive cylinder.
AB - PURPOSE: To analyze residual refractive error, ocular aberrations, and visual acuity (VA) during accommodation simultaneously with ocular aberrometry in eyes after laser-assisted in situ keratomileusis (LASIK), small incision lenticule extraction (SMILE), and transepithelial photorefractive keratectomy (TransPRK).METHODS: Ocular aberrometry (Tracey Technologies, Houston, TX) was performed 3 months after LASIK (n = 95), SMILE (n = 73), and TransPRK (n = 35). White measuring the aberrations, VA was measured at distance (20 ft), intermediate (60 cm), and near (40 cm) targets. The examinations were done monocularly. A parallel group of age-matched normal eyes (n = 50) with 20/20 Snellen distance VA also underwent aberrometry.RESULTS: Distribution of residual spherical error of LASIK eyes matched the normal eyes the best, followed by SMILE and TransPRK. However, the distribution of cylindrical error of the SMILE eyes was distinctly different from the rest (P <.05). The SMILE eyes tended to be undercorrected by approximately 0.25 diopters (D) on average at all reading targets compared to LASIK eyes (P <.05). The undercorrection was greater when the magnitude of the preoperative cylinder exceeded 0.75 D (P <.05). The VA of LASIK and SMILE eyes was similar to normal eyes at all targets, but the TransPRK eyes were marginally inferior (P <.05). Only the ocular defocus changed differentially between the study groups during accommodation and the magnitude of change was least for TransPRK eyes (P <.05). However, postoperative near and intermediate accommodation of LASIK eyes were similar to normal eyes, followed by SMILE eyes and then TransPRK eyes.CONCLUSIONS: The refractive and aberrometric status of the LASIK eyes was closest to the normal eyes. The SMILE procedure may benefit from slight overcorrection of the preoperative refractive cylinder.
KW - TRANSEPITHELIAL PHOTOREFRACTIVE KERATECTOMY
KW - INCISION LENTICULE EXTRACTION
KW - IN-SITU KERATOMILEUSIS
KW - VECTOR ANALYSIS
KW - ASTIGMATISM
KW - OUTCOMES
U2 - 10.3928/1081597X-20190916-02
DO - 10.3928/1081597X-20190916-02
M3 - Article
SN - 1081-597X
VL - 35
SP - 624
EP - 631
JO - Journal of Refractive Surgery
JF - Journal of Refractive Surgery
IS - 10
ER -