AIM:To explore the different forms of persistent pupillary membrane(PPM)treatment.

METHODS:For single filamentous PPM film laser excision. A single thick, reticular or palisade remnant film is applied to both ends of the broken membrane with a laser pulse under the pupil. The membrane-like remnant membrane is made of transparent corneal incision, which is free of residual membrane and lens surface by injecting viscoelastic agent.

RESULTS:The average follow-up time was 3.8a. Pupil area transparent, no residual membrane remains, pupil rounded center, sensitive to light, lens anterior capsule pigment residue 8 eyes, pupils are not round 5 eyes. The intraocular pressure of 33 eyes increased in varying degrees after operation, with a difference of 1.04kPa(4mmHg)before and after treatment and returned to normal after reduced intraocular pressure treatment. No anterior chamber bleeding, lens injury and other complications.

CONCLUSION:For PPM, which has a single filamentous or strip effect on visual function, is treated by laser. Severe membranous or reticular PPM affects the development of visual function in patients. Surgery is an effective method for the treatment of PPM. Early detection, early treatment is conducive to patients to obtain useful vision, for some patients with amblyopia visual function training, or combined with fundus disease treatment to provide favorable conditions.