title: Progressive lenticular astigmatism in the clear lens.
abstract: We describe a case of progressive lenticular astigmatism in a 53-year-old man with a clear lens. The patient acquired 5 diopters of lenticular astigmatism in his right eye over an 18-month period. The visual acuity was reduced to 6/60. Following phacoemulsification and intraocular lens implantation, the uncorrected visual acuity was 6/5. Progressive astigmatism is usually corneal in origin and in an otherwise healthy eye, significant lenticular astigmatism is rare. When lenticular astigmatism occurs, it is usually associated with a cortical cataract; however, astigmatism may precede the development of a clinically visible cataract.
authors.affiliation: Leicester Royal Infirmary, Leicester, United Kingdom. andrewtatham@yahoo.co.uk
authors.forename: Andrew
authors.initials: A
authors.lastname: Tatham
authors.forename: Jeremy
authors.initials: J
authors.lastname: Prydal
mesh_terms: D001251:Astigmatism / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D018450:Disease Progression; D006801:Humans; D007905:Lens Diseases / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D019654:Lens Implantation, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D042262:Retinoscopy; D014792:Visual Acuity / Q000502:physiology