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← Longevity Science · Case reports · 2025
An older cat showed improvements in eye discomfort and several corneal signs after equine placental extract was added alongside ophthalmic treatment.
One cat receiving multiple treatments. The title uses “cats”, but this report concerns a single patient.
What the researchers observed
The authors describe reduced redness, discomfort and other eye signs during combined medical care and supplementation.
How this connects to your routine
This is a feline example of managing comfort and complex needs in later life. It does not replace veterinary eye care or a surgical recommendation.
Understanding the study
- Study design: Single-case report with concurrent ophthalmic treatment
- Participants or model: A 19-year-old cat with corneal perforation and chronic kidney disease
- Preparation: Oral equine placental extract alongside ophthalmic and other prescribed care.
What this study cannot tell us
Concurrent treatments, subjective scoring and one patient prevent attribution to the extract. This does not establish an eye, kidney or anti-ageing treatment.
Read the original research
Combined ophthalmic therapy and equine placental extract supplementation to treat corneal perforation in geriatric cats: A case report in the absence of surgical intervention
Takae Natori and Eiichi Hirano
Open Veterinary Journal · 15(10):5420–5426 · 2025
DOI: 10.5455/OVJ.2025.v15.i10.61 ↗
Read full paper ↗ · Publisher or repository record ↗
Research relationships
Hirano was a Japan Bio Products employee; Natori declared no competing interests. The paper states that no financial support was received.
Explore the everyday concerns
Back to the reading library · Compare our placenta collection
Research findings depend on the preparation, species and study design. These summaries provide context for informed conversations with your veterinarian; research doses do not replace product label directions.