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Simultaneous noncentered photoactivated chromophore for keratitis-corneal collagen cross-linking (PACK-CXL) and penetrating keratoplasty. (a) Corneal trephination. (b) Cornea removal. (c) Open-sky cataract removal. (d) Intraocular lens implantation. (e) Donor cornea suturing. (f) Riboflavin impregnation.
