title: Size variation of the lacrimal punctum in adults.
abstract: This is the first reported study on accurate computerized measurements of lacrimal punctal size in normal adults. There was a wide variation found between patients. The lower lid puncta were consistently noted to be larger than those of the upper lids. This is clinically significant in dry-eye patients who may need to be treated with punctal plugs of various sizes.
authors.affiliation: Department of Ophthalmology, W.K. Kellogg Eye Center, University of Michigan, Ann Arbor 48105.
authors.forename: K D
authors.initials: KD
authors.lastname: Carter
authors.forename: C C
authors.initials: CC
authors.lastname: Nelson
authors.forename: C L
authors.initials: CL
authors.lastname: Martonyi
mesh_terms: D000328:Adult; D005260:Female; D014644:Genetic Variation; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007765:Lacrimal Apparatus / Q000033:anatomy & histology*; D008297:Male; D008875:Middle Aged; D010781:Photography