Facilitation of ab interno radial keratotomy by air keratoplasty.

摘要: BACKGROUND Ab interno radial keratotomy is a keratorefractive procedure with incisions made by externalizing blade inserted in the deep stroma. A major limitation of technical inability to establish safe pre-Descemetic stromal entry subsequent suboptimal depth incisions. technique delineate Descemet's membrane was investigated obtain deeper ab keratotomy. METHODS Air injected 30-gauge needle mounted on 3-milliliter syringe and entering stroma at limbus human donor eyes. The injection done pulse fashion tip advanced 3 mm away from limbus. then performed without air injection. RESULTS Bubbles were localized pre-Descemet region. increased 57.7% (SD = 11.5%) injection, 83.0% 10.6%) CONCLUSIONS Deep delineates space, allowing