1. Dry Eyes After SMILE
- Author
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Tommy C Y Chan, Wee Nie Kua, Kelvin H Wan, Angela Wong, Rachel K Y Cheung, and Kendrick Co Shih
- Subjects
medicine.medical_specialty ,Visual acuity ,genetic structures ,Corneal Stroma ,medicine.medical_treatment ,Keratomileusis, Laser In Situ ,Visual Acuity ,Keratomileusis ,Signs and symptoms ,Review Article ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Corneal Sensitivity ,Ophthalmology ,Myopia ,Humans ,Medicine ,Small incision lenticule extraction ,dry eyes ,SMILE ,business.industry ,Dry eyes ,General Medicine ,medicine.disease ,eye diseases ,refractive surgery ,030221 ophthalmology & optometry ,Dry Eye Syndromes ,Lasers, Excimer ,sense organs ,medicine.symptom ,business ,Ocular surface ,030217 neurology & neurosurgery - Abstract
Dry eyes is one of the most common complications after laser vision correction. Small incision lenticule extraction (SMILE) is a flapless procedure with a smaller corneal incision, less corneal nerves are transected during, making it theoretically less prone to dry eyes. Both SMILE and femtosecond-laser-assisted in situ keratomileusis (FS-LASIK) induce a transient worsening in dry eye parameters, but there is evidence showing that SMILE holds promises to have fewer negative impacts on the ocular surface parameters and allow an earlier recovery. SMILE-treated eyes may also have shown less corneal denervation and better corneal sensitivity compared with FS-LASIK eyes. This review summarizes the mechanisms of dry eyes after laser vision correction, the short-term (≤6 months) and long-term (>6 months) results in changes to dry eyes signs and symptoms, and corneal sensitivity of SMILE, as compared with FS-LASIK. Limitation of the studies and reasons accounting for their discrepancies will be discussed. Future randomized controlled trials with standardized postoperative regime are needed for better evaluation of dry eyes after SMILE.
- Published
- 2019
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