Figure 2. Slit-lamp and ultrasonic biomicroscopy examination of the FPK group and PK group.

A: Preoperative slit-lamp photograph showed a patient with Acanthamoeba keratitis; B: A clear graft was observed at 1y after FPK; C: Ultrasonic biomicroscopy showed peripheral anterior angle is open; D: Preoperative slit-lamp photograph showed a patient with bacterial keratitis; E: Corneal neovascularization was observed at 1y after PK; F: Extensive peripheral anterior synechia was observed by ultrasonic biomicroscopy. PK: Penetrating keratoplasty; FPK: Fusiform penetrating keratoplasty.