Corneal opacity scored at 6 months post-operation.

- clear and compact cornea; + minimal opacity; ++ mild deep (stromal) opacity with pupil margin and iris vessels visible; +++ moderate stromal opacity with only pupil margin visible. Mann-Whitney U analyses: group 2 was very significantly different from group 1 (Z = -2.760, p = 0.004); group 3 was not significantly different from group 1 (Z = -0.527, p = 0.699); group 4 was significantly different from group 1 (Z = -2.245, p = 0.041). Corneal opacity scored at 6 months post-operation.