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Table 1 LASIK Xtra methods

From: Corneal epithelial remodeling after femtosecond laser-assisted in situ keratomileusis combined with intraoperative accelerated corneal collagen crosslinking for myopia: a retrospective study

Parameter

LASIK Xtra

Treatment target

Myopia

Fluence (total) (J/cm2)

2.7

Soak time and interval (s)

90

Intensity (mW)

30

Treatment time (s)

90

Epithelium status

Off

Chromophore

Riboflavin solution in normal saline (Vibex Xtra™, Avedro, Waltham, MA, USA)

Chromophore carrier

Dextran-free

Chromophore osmolarity

Iso-Osmolar

Chromophore concentration

0.22%

Light source

UV-A light (KXL system; Avedro, Inc., Waltham, MA, USA)

Irradiation mode (interval)

Continuous

Protocol modifications

None

  1. LASIK Xtra = 30*90 (femtosecond laser-assisted in situ keratomileusis combined with accelerated corneal collagen crosslinking), J Joule, s Second, mW Milliwatt, UV-A Ultraviolet-A