Corneal neovascularization according to the Efron grading scale 21. Completed cases for 48 hours (nstraight = 12, ncurved = 17), 7 days (nstraight = 10, ncurved = 12), 28 days (nstraight = 4, ncurved = 6), and the analysis of all subjects at 28 days (nstraight_baseline = 21, ncurved_baseline = 21) for both the straight and curved ocular coils.