title: Lens Opacities Classification System.
abstract: The Lens Opacities Classification System (LOCS) is a simple system for classifying age-related human lens opacities at the slit lamp or in retroilluminated and slit-lamp photographs. The system employs a set of standard Neitz CTR retroilluminated black-and-white photographs for classification of cortical and posterior subcapsular cataracts and a single color slit-lamp photograph for classification of nuclear color and opalescence. We present a detailed description of the system.
authors.affiliation: Brigham and Women's Hospital, Boston, MA.
authors.forename: L T
authors.initials: LT
authors.lastname: Chylack
authors.forename: M C
authors.initials: MC
authors.lastname: Leske
authors.forename: R
authors.initials: R
authors.lastname: Sperduto
authors.forename: P
authors.initials: P
authors.lastname: Khu
authors.forename: D
authors.initials: D
authors.lastname: McCarthy
mesh_terms: D002386:Cataract / Q000145:classification* / Q000473:pathology; D006801:Humans; D007903:Lens Capsule, Crystalline / Q000473:pathology; D007904:Lens Cortex, Crystalline / Q000473:pathology; D007907:Lens Nucleus, Crystalline / Q000473:pathology; D009885:Ophthalmology / Q000379:methods*; D010781:Photography