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    Laser in Situ Keratomileusis for Moderate to High Myopia in Mongolians
    (Mongolian National University of Medical Sciences, 2022-03-14) ; ; ;
    Jamyanjav, Baasankhuu
    Objectives: To compare the pre and post-operative outcomes of Mongolian patients who had LASIK surgery. Methods: We conducted hospital based prospective study. A total of 176 consecutive patients who underwent conventional LASIK were examined for the correction of myopia. Study participants were followed for 5 years after surgery.Results: The mean age was 29.89 ± 6.42 years. 145 patients were female and 31 were male. The mean UCVA was 0.10 ± 0.09 Decimal and the mean BCVA was 0.81 ± 0.16 Decimal. Preoperative analysis showed that UCVA and BCVA were significantly different in mild, moderate, and high myopia groups. Especially, patients with mild myopia had higher acuity compared to other groups (0.21 ± 0.13 and 0.86 ± 0.12, respectively). Moreover, the manifest spherical equivalent the of mild myopia group also had significantly lower compared to the other two groups (-1.73 ± 1.17).Conclusions: Our results support the view that preoperative clinical examination is an extremely important part of the LASIK procedure to improve refractive predictability.
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    Item type:Publication,
    Assessment of Laser in Situ Keratomileusis Flap Predictability by Laser and Moria Microkeratome
    (Mongolian National University of Medical Sciences, 2023-09-30) ; ; ;
    Baasankhuu Jamyanjav
    ;
    Uranchimeg Davaatseren
    Objective: In the present study, we compared LASIK flap thickness predictability created by a FS laser versus a Moria microkeratome in Mongolian patients. Methods: A total of ninety-six candidates for the LASIK procedure were stratified into two groups: FS laser-assisted and MK flap creation. Flap thickness was determined at five points. The side-cut angle was measured in three directions at the margin interface. LASIK flap assessment was performed one month postoperatively by Spectralis anterior segment optical coherence tomography. Results: Ninety-five participants (190 eyes) were recruited; 190 eyes were stratified to the FS group and 78 eyes to the MK group. The FS group had relatively even flap configurations, and the MK group had meniscus-shaped flaps. Regarding CR-sphere and cylinder, there was significant difference between 2 groups. The mean cylinder was -1.216 ± 0.924 in FS group while it was -0.730 ± 0.738 in MK group. Similarly, the mean sphere was -3.635 ± 2.031 in FS-LASIK group and -2.984 ± 1.502 in MK-LASIK group. The side-cut architecture varied among the two groups. OCT-C and OCT1Temporal values were significantly different between two groups. Conclusion: Improving the predictability of LASIK flap thickness and morphology is significantly important.