This guide explains practical clinical details and scientific evidence for the SMILE (small incision
lenticule extraction) procedure for corneal refractive surgery, with description of preoperative assessment, surgical technique, and postoperative management.
We prefer implantation of phakic IOLs only in nonpresbyopic patients who are not suitable for corneal refractive surgery (mainly small incision
lenticule extraction).
Assessment of corneal
lenticule: Heidelberg retina tomography-III, optical coherence tomography, and slit-lamp examination
Comparison of Visual Outcomes After Femtosecond LASIK, Wave Front-Guided Femtosecond LASIK, and Femtosecond
Lenticule Extraction.
Other settings were as follows: spot energy was 140 nJ, minimum
lenticule edge thickness was 15 [micro]m,
lenticule sidecut angle was 120[degrees] and optical zone was 6.5 mm.
Acute rejection was associated with intense sector injection at the limbus, edema, and infiltration of the
lenticule, punctate keratopathy and epithelial defects.
The donor
lenticule was transferred endothelial side down onto the viscoelastic-coated Sheet glide (Figure 1(g)).
Descemet's stripping and automated endothelial keratoplasty uses a mechanical microkeratome to harvest the donor corneal
lenticule and mechanical stripping of the diseased host endothelium and Descemet's membrane (5).
It involves scraping away the thin outer layer of epithelial cells covering the cornea, then permanently attaching a refractiveM biocompatible corneal covering, or
lenticule. The
lenticule is made of chemically altered collagen, a naturally occurring protein.
The suitable types of laser vision correction discussed with the patient were laser-assisted epithelial keratomileusis (LASEK) and small incision
lenticule extraction (SmILE).
Since 2011, small incision
lenticule extraction using a femtosecond laser has become clinically available as an alternative to laser in situ keratomileusis [24].