Visual Outcome in High Myopia After Laser in situ Keratomileusis

2000 ◽  
Vol 16 (2) ◽  
Author(s):  
Noel Moniz ◽  
Tony Fernandes ◽  
Kutty K Narayanan ◽  
Ani Sreedhar
Keyword(s):  
High Myopia ◽  
Visual Outcome ◽  
Laser In Situ Keratomileusis

scholarly journals Effect of Flat Cornea on Visual Outcome after LASIK

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Engy Mohamed Mostafa
Keyword(s):  
Visual Acuity ◽  
High Myopia ◽  
Visual Outcome ◽  
Laser In Situ Keratomileusis ◽  
Refractive Outcome ◽  
Corrected Distance Visual Acuity ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Purpose. To evaluate the effect of preoperative and postoperative keratometry on the refractive outcome after laser in situ keratomileusis (LASIK) for moderate and high myopia.Methods. Records of 812 eyes (420 patients) with myopia ≥−6 D who had LASIK at Sohag Laser Center, Egypt, from January 2010 to November 2013, were retrospectively analyzed. Main outcome measures were postoperative corrected distance visual acuity (CDVA), postoperative spherical equivalence, and postoperativeQfactor.Results. LASIK was performed in 812 eyes (mean age21.8±5.2years). Patients were grouped according to the degree of preoperative myopia into three groups: Group 1, −6 D to −7.9 D; Group 2, −8 to −9.9 D; and Group 3, −10 to −12 D. The refractive outcome among the different myopia groups was stratified by pre- and postoperative keratometry. A trend toward greater undercorrection was noted in eyes with preoperative keratometry <43.5 D compared with those with steeper keratometry >46 D in all myopia groups. The undercorrection was also noted in postoperative keratometry groups <35 D.Conclusions. Preoperative and postoperative keratometry appeared to influence the refractive outcome especially in high myopic eyes.

scholarly journals Thin-flap (sub-Bowman keratomileusis) versus thick-flap laser in situ keratomileusis for moderate to high myopia: Case-control analysis

2008 ◽  
Vol 34 (12) ◽  
pp. 2073-2078 ◽  
Author(s):  
Dimitri T. Azar ◽  
Ramon C. Ghanem ◽  
Jose de la Cruz ◽  
Joelle A. Hallak ◽  
Takashi Kojima ◽  
...  
Keyword(s):  
High Myopia ◽  
Case Control ◽  
Laser In Situ Keratomileusis ◽  
Control Analysis ◽  
Case Control Analysis

A quality of life assessment of military recruits after refractive surgery

2020 ◽  
Vol 1 (1) ◽  
pp. 42-46
Author(s):  
Jian-He Xiao ◽  
◽  
Shi-Yang Li ◽  
Xing Xing ◽  
Ai-Hong Zhao ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Refractive Error ◽  
High Myopia ◽  
Refractive Surgery ◽  
Laser In Situ Keratomileusis ◽  
Significant Difference ◽  
Lenticule Extraction ◽  
Postoperative Interval

AIM: To evaluate the quality of life of recruits after refractive surgery. METHODS: Population-based, cross-sectional study. Using the Quality of Life Impact of Refractive Correction (QIRC) questionnaire, the quality of life in 615 recruits underwent refractive surgery was evaluated. The overall score and each question score of QIRC were compared between subgroups of different strength of preoperative refractive error, postoperative interval, type of surgical procedure and postoperative recovery. RESULTS: The mean overall QIRC score of recruits underwent refractive surgery was 49.15±7.89. Significant difference was found for strength of preoperative refractive error (F=4.16, P<0.05), with the low myopia group (50.67±7.59) had significantly better scores than those with high myopia (47.57±7.52, F=4.16, P<0.05). Recruits after a postoperative interval no more than 6mo (49.18±7.86) scored equally to those of more than 6mo (49.18±8.03). Recruits underwent surface ablation surgery scored lowest (46.68±6.09), but showed no significant difference when compared with all underwent refractive surgery (t=1.99, P>0.05). Scores of recruits underwent mechanical microkeratome laser in situ keratomileusis (MK-LASIK), Sub-Bowman’s keratomileusis (SBK), femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK), femtosecond lenticule extraction (ReLEx flex) or small-incision lenticule extraction (ReLEx SMILE) procedure showed no significant difference too. Recruits had adverse complaints postoperatively (45.85±6.66) scored lower when compared with all underwent refractive surgery (t=5.28, P<0.01). CONCLUSION: The quality of life of recruits after refractive surgery was good except those with postoperative complications. Preoperative low myopia recruits had better quality of life than medium and high myopia ones.

Laser in situ keratomileusis (LASIK) in high myopia

1997 ◽  
Vol 94 (11) ◽  
pp. 775-779 ◽  
Author(s):  
Michael C. Knorz ◽  
Andreas Liermann ◽  
Bettina Wiesinger ◽  
Volker Seiberth ◽  
Hans Liesenhoff
Keyword(s):  
High Myopia ◽  
Laser In Situ Keratomileusis

Simultaneous laser in situ keratomileusis on the stromal bed and undersurface of the flap in eyes with high myopia and thin corneas

2005 ◽  
Vol 31 (10) ◽  
pp. 1921-1927 ◽  
Author(s):  
Myung-Jin Joo ◽  
Ye-Ni Kim ◽  
Hyo-Chang Hong ◽  
Dong-Kyu Ryu ◽  
Jae-Ho Kim
Keyword(s):  
High Myopia ◽  
Laser In Situ Keratomileusis

scholarly journals Twelve-Year Follow-Up of Laser In Situ Keratomileusis for Moderate to High Myopia

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Tetsuya Ikeda ◽  
Kimiya Shimizu ◽  
Akihito Igarashi ◽  
Sumie Kasahara ◽  
Kazutaka Kamiya
Keyword(s):  
High Myopia ◽  
Central Corneal Thickness ◽  
Pearson Correlation ◽  
Corneal Thickness ◽  
Laser In Situ Keratomileusis ◽  
Manifest Refraction ◽  
Observation Period

Purpose. To assess the long-term clinical outcomes of conventional laser in situ keratomileusis (LASIK) for moderate to high myopia.Methods. We retrospectively examined sixty-eight eyes of 37 consecutive patients who underwent conventional LASIK for the correction of myopia (−3.00 to −12.75 diopters (D)). At 3 months and 1, 4, 8, and 12 years postoperatively, we assessed the safety, efficacy, predictability, stability, mean keratometry, central corneal thickness, and adverse events.Results. The safety and efficacy indices were0.82±0.29and0.67±0.37, respectively, 12 years postoperatively. At 12 years, 53% and 75% of the eyes were within 0.5 and 1.0 D, respectively, of the targeted correction. Manifest refraction changes of −0.74±0.99 D occurred from 3 months to 12 years after LASIK (p<0.001). We found a significant correlation of refractive regression with the changes in keratometric readings from 3 months to 12 years postoperatively (Pearson correlation coefficient,r=-0.28,p=0.02), but not with the changes in central corneal thickness (r=-0.08,p=0.63). No vision-threatening complications occurred in any case.Conclusions. Conventional LASIK offered good safety outcomes during the 12-year observation period. However, the efficacy and the predictability gradually decreased with time owing to myopic regression in relation to corneal steepening.

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