The Shearing-style intraocular lens and the posterior chamber.
We observed the Shearing-style intraocular lens in human cadaver eyes and in dog eyes. In human cadaver eyes the lens loops rest in the ciliary body sulcus without exerting undue pressure; the only major problem occurred when the posterior capsule was torn and a loop found its way into the pars ciliaris of the ciliary body or into the vitreous base. Seven Shearing-style lenses were implanted in four dogs: six-month preliminary histopathology showed four of these lenses to be well tolerated with abundant synechiae formation around the loops. Two eyes exhibited loop pressure necrosis due to slight lens displacement.
D000818:Animals; D002102:Cadaver; D004285:Dogs; D005069:Evaluation Studies as Topic; D006801:Humans; D007910:Lenses, Intraocular / Q000009:adverse effects / Q000379:methods*; D009336:Necrosis; D000267:Tissue Adhesions