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Writer's pictureDeborah Newman

Lenticular Sclerosis/Nuclear Sclerosis in Felines



Lenticular sclerosis, also known as nuclear sclerosis, is a normal, age-related change that causes a bluish haze to develop in the lenses of a cat's eyes. It's usually symmetrical and affects both eyes. 


Lenticular sclerosis

Symptoms

A bluish, transparent haze that develops in the lens of a cat's eye, causing the pupil to appear cloudy or bluish

When it occurs

Usually begins around age eight and becomes more obvious as the cat ages

Vision

Does not significantly affect vision

Treatment

Not necessary, but regular check-ups with a veterinarian are recommended to monitor for cataracts

Prevention

There is no way to prevent this condition

Lenticular sclerosis is caused by the lens growing continuously throughout a cat's life. As the lens grows, new fibers replace old ones, compacting the old fibers in the center of the lens. This makes the center of the lens denser and can cause it to appear cloudy. 

A veterinarian can perform an eye exam to differentiate between lenticular sclerosis and cataracts. Cataracts can cause vision loss and require surgery, so it's important to get a proper diagnosis. 

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