![]() As both SMILE and LASEK avoid stromal flap creation, fewer corneal nerve fibers are severed, with concomitantly faster regeneration of the corneal nerves and recovery of corneal sensation relative to traditional laser-assisted in situ keratomileusis (LASIK) or femtosecond laser assisted LASIK (FS-LASIK). Laser-assisted subepithelial keratomileusis (LASEK) is a surface ablation procedure, which creates an epithelial flap only on the cornea. A refractive stromal lenticule is created using a femtosecond laser and extracted through a small peripheral incision, thus modifying the corneal shape and correcting refractive errors. Small incision lenticule extraction (SMILE) is the latest keratorefractive procedure. With the benefit of novel techniques, especially the application of femtosecond laser in ophthalmology, keratorefractive procedures are now less invasive and safer, and correct refractive error more accurately than in the past. With the incidence of myopia increasing globally, keratorefractive procedures have gained widespread popularity in recent decades. Future studies are required to investigate long term clinical efficacy and safety. WC may temporarily increase tear film thickness and stability, decrease partial blink, and partly augment Meibomian gland function in dry eye patients after corneal refractive surgeries. Max-TFLLT variation was correlated with that of TMGS ( p = 0.020). TBUT variation was positively correlated with that of Ave-TFLLT and TMGS ( p = 0.046, 0.028, respectively). The decrease of PBF was higher in SMILE subgroup than in LASEK ( p = 0.030). ![]() Partial blink frequency (PBF) and partial blink rate (PBR) decreased ( p = 0.002 in both cases). ResultsĪfter WC, the following mean values all increased relative to baselines: CCT, SE, minimum (Min-), maximum (Max-) and average (Ave-) TFLLT, TBUT, total MGS (TMGS), number of glands secreting any liquid (MGL), and complete blink rate (CBR) ( p values ranging from < 0.001 to 0.042). Tear film break-up time (TBUT), tear film lipid layer thickness (TFLLT), blink pattern, Meibomian secretory function scores (MGS), visual acuity, spherical equivalent (SE), keratometry, central corneal thickness (CCT) and aberration were assessed before and after WC. WC was performed using a spontaneously heating eye mask. We enrolled 37 eyes of 37 participants, each with dry eye for more than 2 years following SMILE (25 eyes) or LASEK (12 eyes). Machine or hand wash cover only.To assess the effects of warm compress (WC) on tear film lipid layer, blink pattern and Meibomian gland function in patients with dry eye following femtosecond laser small incision lenticule extraction (SMILE) and laser-assisted subepithelial keratomileusis (LASEK). Wear for 5 to 7 minutes as directed by a physician. Remove mask from freezer and place over closed eyes.Place eye mask on clean dry surface and place in the freezer for 30 minutes.Do not apply for more than 20 minutes at a time. Wear for 3 to 5 minutes or as directed by a physician. ![]() Do not exceed a maximum of 30 seconds per heating. For additional heat, add in 5 second increments to obtain your desired temperature. If mask is too hot, allow it to cool for 2 minutes and test again. ![]() Before applying, always touch eye mask with fingers first to test for desired temperature. Set microwave power to high and heat for 20 seconds.Place eye mask flat on clean microwave safe dish.Eye mask must be at room temperature before heating.
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