Objective To evaluate the clinical application and effect of cryodesiccation amniotic membrane transplantation combined with lamellar keratoplasty on Mooren s ulcer.
Aimed at the problem of lamellar tearing in the welding of bakie, generating cause of lamellar tearing was analyzed from the product structure and welding procedure etc.
Because the distribution of molecular director was not affected by lamellar decorating after quench, chemical etching and SEM technique were used to reveal disclination and director patterns.