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When your pet needs ear surgery, their eyes might be the last thing on your mind. Yet Dr. Bianca Hartrum's pioneering research reveals a critical connection between ear procedures and vision health that veterinary professionals and pet owners can no longer afford to ignore.

Dr. Hartrum's study examines ocular examinations before and after total ear canal ablation and bulla osteotomy (TECALBO) procedures in cats and dogs. The findings are striking: a staggering 90.9% of cats developed Horner's syndrome following surgery—far higher than previously documented rates. Additionally, 20% of patients already had eye disease related to their ear condition before surgery, while another 30% had unrelated ocular issues discovered during comprehensive exams.

The research originated from a troubling case early in Dr. Hartrum's residency—a dog with a severe melting corneal ulcer and facial nerve paralysis following ear surgery. This prompted her deep dive into existing literature, where she found only passing mentions of neuro-ophthalmic complications without detailed analysis. Her study fills this critical knowledge gap with ophthalmologic expertise and data-driven recommendations that are already transforming clinical practice.

The take-home message is clear and actionable: thorough eye examinations should be standard before and after ear surgeries. Dr. Hartrum recommends Schirmer tear tests, fluorescein staining, and post-operative topical lubricants as minimum protective measures. These simple steps can prevent potentially devastating vision complications. These findings can lead to new collaborative care protocols incorporating pre- and post-operative eye exams into surgical costs.

Has your veterinarian discussed potential eye complications before your pet's ear surgery? Share your experience and help spread awareness about this important connection between ear and eye health in our beloved companions.

JAVMA article: https://doi.org/10.2460/javma.24.08.0533

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