Nuclear sclerosis in dogs and cats

Common info

Nuclear sclerosis is like cataracts or glaucoma because the eyes are cloudy, blue or gray eye lenses, but suffering from Nuclear sclerosis will still be able to see, but the vision will get worse at night.


Nuclear sclerosis occurs in old dogs and cats, aged 6-8 years.


Throughout the life of dogs and cats, they will continue to create fiber around the eye lens, but when they get older, these fibers will harden, causing cloudy eye, blue or gray eye lens, or often called Nuclear sclerosis.


  • Cloudy eye
  • Blue or gray eye lens

The main symptoms of Nuclear sclerosis in dogs and cats are cloudy eye and blue or gray eye lenses.

Treatment and Prevention

Nuclear sclerosis in dogs and cats needs no treatment since the condition is normal in dogs and cats. Only if it develope into a cataract, you should consult a veterinarian. Nuclear sclerosis in dogs and cats caused by a natural change due to age; so, it cannot prevent.

  1. Healthline | What Is Nuclear Sclerosis?
  2. Pet Care | The Basics of Nuclear Sclerosis in Dogs
  3. The Pet Wiki | Nuclear Sclerosis In Cats And Dogs
  4. Wag! | Lenticular Sclerosis in Cats
  5. Odaijinipet | Lens luxation (Thai version)
  6. Chylack, L.T., B.J. Ransil and O. Whire. 1982. Classification of Human Senile Cataractous Change by the American Cooperative Cataract Research Group (CCRG) Method: III. The Association of Nuclear Color (Sclerosis) with Extent of Cataract Formation, Age, and Visual Acuity. Investigative Ophthalmology & Visual Science. 25(2): 175-180.
  7. Fan, S., C.R. Dyer, L. Hubbard and B. Klein. 2003. An Automatic System for Classification of Nuclear Sclerosis from Slit-Lamp Photographs. Springer-Verlag Berlin Heidelberg. LNCS 2878: 592–601.
  8. Klein, A.P., P. Duggal, K.E. Lee, J. A. O’Neill, R. Klein, J.E.B. Wilson and B.E.K. Klein. 2005. Polygenic Effects and Cigarette Smoking Account for a Portion of the Familial Aggregation of Nuclear Sclerosis. Am J Epidemiol. 161: 707–713.
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