Preliminary effects of treating the half of high latent hyperopia on refractive and visual results of femtosecond laser-
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ORIGINAL PAPER
Preliminary effects of treating the half of high latent hyperopia on refractive and visual results of femtosecond laser-assisted in situ keratomileusis in subjects with hyperopia Kemal Ozulken . Cagri Ilhan . Erdem Yuksel . Tarkan Mumcuoglu
Received: 2 March 2020 / Accepted: 11 May 2020 Ó Springer Nature B.V. 2020
Abstract Background To evaluate the preliminary effects of treating the half of high latent hyperopia on refractive and visual outcomes of femtosecond laser-assisted in situ keratomileusis (LASIK) in young subjects with hyperopia. Methods This non-randomized comparative study includes 120 eyes of 60 subjects who underwent femtosecond LASIK to correct hyperopia. Group 1 (n = 60) includes subjects with B 1D algebraic difference (DRSE) between cycloplegic (CRSE) and manifest (MRSE) refraction spherical equivalents and was treated by entering manifest refraction values. Group 2 includes subjects with [ 1D DRSE and was treated by entering the mean manifest and cycloplegic refraction values. Refractive and subjective outcomes obtained at the 1-, 3-, and 6-month postoperative visits were compared.
K. Ozulken T. Mumcuoglu Department of Ophthalmology, TOBB ETU, Ankara, Turkey C. Ilhan (&) Department of Ophthalmology, Hatay State Hospital, Antakya, Hatay, Turkey e-mail: [email protected]
Results The mean age of the subjects was 26.2 ± 3.5 and 26.2 ± 5.2 years for Group 1 and Group 2, respectively. The male-to-female ratios were 10/10 in both groups. Demographic values of the groups were similar (p [ 0.05). Preoperative MRSE values were similar (p = 0.924), while CRSE and DRSE values were significantly higher in Group 2 (p \ 0.001). At the 1- and 3-month postoperative visits, MRSE was higher and uncorrected distance visual acuity (UDVA) was lower in Group 2 (p \ 0.001). Subjective visual parameters and quality of vision scores were also worse in Group 2 during these visits (p \ 0.001); however, at the 6-month visit, all outcomes for Group 2 improved, and MRSE, UDVA, some subjective visual parameters, and quality of vision scores became similar between groups (p [ 0.05). Conclusion At the 6-month visit after treating the half of [ 1D latent hyperopia with femtosecond LASIK, refractive and visual outcomes like MRSE, UDVA, subjective visual parameters, and quality of vision scores become similar to those obtained in B 1D latent hyperopia. Keywords Femtosecond Hyperopia LASIK Latent Refractive error Refractive surgery
E. Yuksel Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Boston, MA, USA
123
Int Ophthalmol
Introduction With technological improvements and innovations, novel laser platforms have increased the accuracy and safety of procedures. In refractive error correction, laser-assisted in situ keratomileusis (LASIK) is a safe, effective, and predictable technique [1]. In LASIK surgery, a corneal flap is created to ablate the stroma, and the central cornea is flattened to decrease the optical power in myopic corr
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