Randomised equivalency trial comparing 2.5% povidone-iodine eye drops and ophthalmic chloramphenicol for preventing neonatal conjunctivitis in a trachoma endemic area in southern Mexico.

Aim: To evaluate the effectiveness of 2.5% povidone-iodine eye drops (PIED) compared with ophthalmic chloramphenicol (OC) for preventing neonatal conjunctivitis.

Methods: 2004 neonates were enrolled from three rural hospitals in a trachoma endemic area.