1. Bilamellar tarsal rotation compared to techniques that do not create a full‐thickness incision of the tarsal plate and complete rotation of the lash‐bearing tissue.

Outcome	Other technique Follow‐up range 5 to 11 months	Bilamellar tarsal rotation n/N	Other technique n/N	Odds ratio (95% CI)
Post‐operative trichiasis	Tarsal grooving	10/39	29/33	0.05 (0.01, 0.17)
	Eversion splinting	10/39	14/21	0.17 (0.05, 0.55)
	Tarsal advance	10/39	17/38	0.43 (0.16, 1.11)

Data from Reacher 1990.

n = number of eyes with outcome; N = total number of eyes followed up