title: Lens dislocation has a possible relationship with laser iridotomy.
abstract: We report our recent experience of four eyes with spontaneous lens dislocation in four patients with no history of trauma or any systemic disease associated with zonular dialysis. Lens dislocation developed with 0.5 to 6 months following laser iridotomy. All patients were male and two eyes were complicated with acute primary angle closure glaucoma preoperatively. Case 1 showed bilateral lens dislocation, while cases 2 and 3 involved unilateral lens dislocation. Cases 2 and 3 showed lenses completely dislocated into the vitreous cavity. All cases needed lens removal and scleral fixation of intraocular lenses. Final visual acuity was 1.2 in all cases. We suspect that laser iridotomy may induce localized zonular dialysis that results in progressive zonular weakness, leading to lens dislocation.
authors.affiliation: Department of Ophthalmology, Dokkyo Medical University Koshigaya Hospital, Koshigaya City, Saitama, Japan ; Department of Ophthalmology, Boston University School of Medicine, Boston, MA, USA.
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Mutoh
authors.forename: Kevin F
authors.initials: KF
authors.lastname: Barrette
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Matsumoto
authors.forename: Makoto
authors.initials: M
authors.lastname: Chikuda