Cataracts affect 0.37% of normal cats but over 33% of diabetic cats - making diabetes the leading cause of feline cataracts. Unlike dogs, cats rarely develop age-related cataracts. Surgery (phacoemulsification) costs $1,500-$3,500 per eye and achieves visual success in over 90% of cases. Only a veterinary ophthalmologist can perform the procedure.
Cataracts are almost always secondary to another condition - not age-related. Main causes: diabetes mellitus (33.5%), severe dehydration (26%), uveitis, trauma, and congenital defects. Diabetes is the leading cause. Prevalence in normal cats: 0.37%.
Cloudiness or bluish-gray opacity, bumping into objects, reluctance to jump. Ophthalmologist uses slit lamp, measures intraocular pressure (to rule out glaucoma), and performs electroretinography to confirm retinal function before surgery.
Consultation: $150-$300. Workup (slit lamp, tonometry, ERG): $200-$500. Surgery per eye: $1,500-$3,500. Pre-surgical bloodwork: $100-$150. Post-op drops: $50-$150/month. Follow-ups: $100-$200 each.
No medication reverses cataracts. Phacoemulsification - ultrasonic lens removal with artificial lens implant - is the only treatment. A multicenter study of 71 cats achieved 92.6% visual success at 12 months. Uveitis-induced cataracts have lower outcomes.
Per eye (surgery + workup + post-op). Bilateral surgery: $4,000-$8,000. Managing the underlying cause adds to ongoing cost.
Excellent when the underlying cause is controlled and surgery is performed before complications develop. Inflammation-induced cataracts have more variable outcomes - ongoing uveitis can cause re-adhesion and surgical failure.
Early surgery (before lens-induced uveitis develops) gives the best outcomes. Mature or hypermature cataracts increase surgical risk. Retinal function must be confirmed before surgery is attempted.
Controlling diabetes with insulin is the most impactful prevention step. Regular ophthalmic checks in diabetic cats allow early detection. No nutritional supplement prevents cataracts in cats.
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Ophthalmology consultation + workup + phacoemulsification surgery (one eye).
Cataracts caused by illness (diabetes, uveitis) are covered when the condition is not pre-existing. Ophthalmology consultation, ERG, and phacoemulsification are covered as diagnostic and surgical expenses. Congenital cataracts are often excluded.
If your cat was diagnosed with diabetes before enrollment, cataracts from diabetes are excluded. This is the most common denial - diabetes and cataracts are treated as one linked condition.
Congenital and hereditary cataracts are excluded by many policies. If records show early-onset lens opacity or family history, insurers may classify as congenital regardless of actual cause.
Some policies require primary care vet referral to a specialist before covering ophthalmology. Emergency referrals without authorization may be partially denied. Check requirements before your exam.
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