Progression rates of trichiasis and corneal opacity over 12 months
| Proportion | % | 95% Confidence interval | |
|---|---|---|---|
| Minor trichiasis to major trichiasis (either eye) | 18/55 | 33 | 21 to 47 |
| Unilateral to bilateral trichiasis | 21/46 | 46 | 31 to 61 |
| Incident/progressive corneal scarring (any worsening of WHO grade, | |||
| Incidence of sight threatening corneal opacity (grades 0 or 1 at baseline and 2 or 3 at 12 months, either eye) | 10/104 | 10 | 5 to 17 |