Permanent sealing of the puncta (tear drains) as a treatment for aqueous deficient dry eye.
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ABSTRACT: Argon laser punctal therapy versus thermal cautery for the treatment of aqueous deficiency dry eye syndrome.
Hutnik CM, Probst LE.
Can J Ophthalmol. 1998 Dec;33(7):365-72.
Surgical punctal occlusion: a prospective study.
D Liu and Y Sadhan,
British Journal of Ophthalmology 2002;86:1031-1034