Visual Axis Opacification After Canine Cataract Surgery Combined With Posterior Continuous Curvilinear Capsulorhexis

Area of Science:

• Veterinary Ophthalmology
• Ophthalmic Surgery

Background:

• Canine cataract surgery aims to restore vision but can be complicated by visual axis opacification (VAO).
• Posterior continuous curvilinear capsulorhexis (PCCC) is a technique used to manage posterior capsule opacity during surgery.

Purpose of the Study:

• To evaluate factors influencing the development of VAO after canine cataract surgery with PCCC.
• To assess the safety and efficacy of PCCC in managing pre-existing posterior capsular opacity.

Main Methods:

• Retrospective analysis of 825 canine eyes undergoing cataract surgery.
• PCCC was performed when intraoperative posterior capsule opacity was noted.
• VAO was assessed postoperatively, with analysis focusing on eyes with at least 90 days of follow-up.

Main Results:

• PCCC was required in 13% of cases.
• Lower cataract stages and postoperative fibrin formation were significantly associated with increased VAO.
• Age and diabetes did not show a statistically significant effect on VAO development.

Conclusions:

• PCCC is a safe and effective adjunct for canine cataract surgery.
• Early cataract stages and the presence of postoperative fibrin are risk factors for VAO.
• Diabetic status and patient age do not significantly influence VAO after PCCC.