Figure 1. Preparation of the graft.

The CSL was obtained from SMILE surgery and stored in glycerol anhydrous at ultra-low temperature. During PPV, the CSL was taken out of glycerol and washed with balanced salt solution and stained with indocyanine green to facilitate identification during intraocular operation. And the CSL (white arrow) was trimmed to 3×3 mm² size with microscopic scissors to cover the MH. CSL: Corneal stromal lenticule; SMILE: Small incision lenticule extraction; PPV: Pars plana vitrectomy; MH: Macular hole.