The Application Research on Iris-clip intraocular lens implantation for Aphakia in Canine

Abstract Objective This study aimed to assess the clinical efficacy of Iris-clip intraocular lens (IOL) implantation for treating Aphakia in canines. Method Twelve dogs diagnosed with hereditary cataracts in both eyes were enrolled. Each dog's eyes were randomly assigned to either the control group or the operative group. Phacoemulsification was performed on both groups, with the operative group additionally receiving Iris-clip IOL implantation. Routine ophthalmic examinationst were conducted and compared between the two groups. Results In both groups, IOP gradually decreased post-surgery, with levels on the 3rd day being significantly lower than pre-surgery levels (P < 0.05). STT values initially decreased, then increased, with the operative group exhibiting lower values than normal between the 4th and 21st days post-surgery. Corneal edema and aqueous humor flare were higher in the operative group, requiring a longer recovery period. Visual acuity improved significantly in both groups, with the operative group showing superior results. Conclusion Iris-clip anterior chamber intraocular lens implantation may lead to early postoperative complications. However, with appropriate local drug treatment, these complications can be resolved, resulting in significant improvement in visual acuity in dogs with aphakic eyes. This study confirms the feasibility of this surgical approach for treating aphakia in dogs.