[Contrast study in injuries to the lacrimal ducts].

Examinations of the lacrimal duct in 55 patients with posttraumatic deformations of the median zone of the face evidence that lacrimal sac and nasolacrimal channel impairments can be diagnosed by dacryocystography in various modifications; the most reliable data may be obtained when the lacrimal duct is filled via a catheter. Etiotrast proved to be the most adequate contrast agent. The developed dacryocystography modifications help plan reconstructive surgery of the lacrimal duct and monitor the efficacy of the surgery. The suggested modifications may be employed in other diseases of the lacrimal duct.