SMILE Laser Eye Surgery: Suitability, Risks and Alternatives

SMILE—small-incision lenticule extraction—is laser eye surgery in which a femtosecond laser creates a small disc of corneal tissue that is removed through a small incision. It may reduce selected myopia and astigmatism but does not guarantee spectacle-free or 20/20 vision.

Suitability assessment

An eye surgeon should review prescription stability, corneal shape and thickness, dry eye, pupil size, retinal health, medicines, pregnancy where relevant and visual needs. Glasses, contact lenses, PRK, LASIK or no surgery may be alternatives. The FDA patient information booklet illustrates that indications are device- and patient-specific.

Risks and limitations

Possible risks include dry eye, glare, halos, under- or over-correction, astigmatism, infection, inflammation, corneal haze or irregularity, difficulty removing the lenticule, loss of best-corrected vision and further treatment. Presbyopia and future eye disease can still require correction or care.

Recovery and comparisons

Vision and comfort change at different rates. Driving, screens, work, swimming and exercise should follow individual advice. Unsupported claims of improvement within hours, universal 20/20 outcomes or lower complication rates than every alternative should not guide consent.

See Revitalize’s PRK information and specialist consultation route.