Mean UCVA, 12 months after surgery (unit LogMAR) · adults (18 years) with more than 0.5 diopters of myopia or myopic astigmatism
1 finding from 1 review
Eyes within ± 0.5 D of target refraction · adults (18 years) with more than 0.5 diopters of myopia or myopic astigmatism
Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical… showed no clear difference in proportion of eyes within ± 0.5 diopters of target refraction, 12… compared with LASIK with a femtosecond laser (low certainty).
1 finding from 1 review
Mean refractive error expressed as mean spherical equivalent post‐treatment. ‐ 12 months · adults (18 years) with more than 0.5 diopters of myopia or myopic astigmatism
1 finding from 1 review
Adverse effects: corneal haze · adults (18 years) with more than 0.5 diopters of myopia or myopic astigmatism
It is very uncertain whether laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical… changes corneal haze, any time point compared with LASIK with a femtosecond laser (very low certainty).
1 finding from 1 review
Dry eye, any time point · adults (18 years) with more than 0.5 diopters of myopia or myopic astigmatism
Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical… may leads to higher dry eye, any time point compared with LASIK with a femtosecond laser (low certainty).
1 finding from 1 review
Diffuse lamellar keratitis, any time point · adults (18 years) with more than 0.5 diopters of myopia or myopic astigmatism
Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical… may leads to lower diffuse lamellar keratitis, any time point compared with LASIK with a femtosecond laser (low certainty).
1 finding from 1 review
Epithelial ingrowth, any time point · adults (18 years) with more than 0.5 diopters of myopia or myopic astigmatism
It is very uncertain whether laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical… changes epithelial ingrowth, any time point compared with LASIK with a femtosecond laser (very low certainty).
1 finding from 1 review
Proportion of eyes with uncorrected visual acuity (UCVA) of 20/20 or better post‐treatment. ‐ 12 months · patients with myopia
Laser‐assisted in‐situ keratomileusis (LASIK) may leads to higher UCVA of 20/20 or better compared with photorefractive keratectomy (PRK) (low certainty).
1 finding from 1 review
Eyes within ± 0.5 D of target refraction · patients with myopia
Laser‐assisted in‐situ keratomileusis (LASIK) showed no clear difference in within 0.50 D of target refraction compared with photorefractive keratectomy (PRK) (low certainty).
1 finding from 1 review
Postoperative spherical equivalent · patients with myopia
1 finding from 1 review
Lost one or more lines of BCVA · patients with myopia
Laser‐assisted in‐situ keratomileusis (LASIK) showed no clear difference in lost one or more lines of BCVA compared with photorefractive keratectomy (PRK) (low certainty).
1 finding from 1 review
Final BCVA of 20/40 or less · patients with myopia
It is very uncertain whether laser‐assisted in‐situ keratomileusis (LASIK) changes final BCVA of 20/40 or less compared with photorefractive keratectomy (PRK) (very low certainty).
1 finding from 1 review
Pain scores · patients with myopia
1 finding from 1 review
Intervention not reported
Uncorrected visual acuity (UCVA) of 20/20 or better · participants aged 18‐60 years with myopia ranging in severity up to 12 diopters (D)
It is very uncertain whether the intervention changes uncorrected visual acuity (UCVA) of 20/20 or better (very low certainty).
1 finding from 1 review
RR 0.96 [0.82, 1.13]
Studies not reported
Very low
Intervention not reported
Uncorrected visual acuity (UCVA) of 20/40 or better · participants aged 18‐60 years with myopia ranging in severity up to 12 diopters (D)
It is very uncertain whether the intervention changes uncorrected visual acuity (UCVA) of 20/40 or better (very low certainty).
1 finding from 1 review
RR 0.9 [0.67, 1.21]
Studies not reported
Very low
Intervention not reported
Proportion of participants who lost two or more lines of best‐corrected visual acuity (BCVA) · participants aged 18‐60 years with myopia ranging in severity up to 12 diopters (D)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Intervention not reported
Eyes within ± 0.5 D of target refraction · participants aged 18‐60 years with myopia ranging in severity up to 12 diopters (D)
It is very uncertain whether the intervention changes eyes within ± 0.5 D of target refraction (very low certainty).
1 finding from 1 review
RR 0.69 [0.48, 0.99]
Studies not reported
Very low
Intervention not reported
Postoperative corneal haze · participants aged 18‐60 years with myopia ranging in severity up to 12 diopters (D)
It is very uncertain whether the intervention changes postoperative corneal haze (very low certainty).
1 finding from 1 review
RR 2.11 [0.57, 7.82]
Studies not reported
Very low
Intervention not reported
Postoperative pain score: 1 year · participants aged 18‐60 years with myopia ranging in severity up to 12 diopters (D)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Intervention not reported
Adverse events (flap‐complications) · participants aged 18‐60 years with myopia ranging in severity up to 12 diopters (D)
1 finding from 1 review
no estimate extracted
Studies not reported
Low