Light sensitivity

What are the causes of photosensitivity in dogs?

Photosensitivity in dogs can have various causes, ranging from harmless to serious. Some of the most common are:

• Allergies: some dogs are allergic to certain substances in the air, such as pollen, dust or mold. These can cause inflammation of the eyelids or conjunctiva, leading to increased sensitivity to light.
• Infections: Bacterial or viral infections can also cause inflammation or irritation of the eyes, which increases sensitivity to light. The most common infections include conjunctivitis (inflammation of the conjunctiva), corneal ulcers or uveitis (inflammation of the middle part of the eye).
• Injuries: An injury to the eye, such as a scratch, foreign body or burn, can cause damage to the cornea or iris, which impairs pupil function. As a result, the eye can no longer react properly to light and becomes more sensitive.
• Diseases: Some diseases can also lead to light sensitivity in dogs, such as glaucoma (increased intraocular pressure), cataracts (clouding of the lens) or retinal detachment (detachment of the retina from the back wall of the eye). These diseases can impair the dog's vision or even lead to blindness if they are not treated.

What are the symptoms of photosensitivity in dogs?

The symptoms of photosensitivity in dogs can vary depending on the severity and cause. Some of the most common are:

• Blinking or squinting of the eyes
• Turning away or avoiding light sources
• Redness or swelling of the eyes
• Discharge or tearing from the eyes
• Rubbing or scratching at the eyes
• Change in pupil size or shape
• Change in eye color or shine
• Reduced vision or orientation

How is photosensitivity treated in dogs?

The treatment of photosensitivity in dogs depends on the underlying cause. That's why it's important to see a vet if you notice any signs of photosensitivity in your dog. The vet will carry out a thorough examination of your dog to make a diagnosis and recommend the appropriate treatment. Some of the possible treatment options are:

• Medication: Depending on the type and severity of the infection or inflammation, your vet may prescribe your dog antibiotics, antivirals, antihistamines, painkillers or anti-inflammatory medication. These should alleviate the symptoms and promote healing.
• Surgery: In some cases, surgery may be necessary to treat an eye injury or disease. For example, a corneal transplant, cataract surgery or glaucoma surgery can improve or preserve your dog's vision.
• Sun protection: To reduce the strain on your dog's eyes, you should protect him from direct sunlight. For example, you can put on sunglasses or a hat when you take him for a walk. You should also make sure he has enough shade and water when he's outside.

How can you prevent photosensitivity in dogs?

Photosensitivity in dogs can't always be prevented, but you can take some steps to reduce the risk. For example, you can:

• Check your dog's eyes regularly for signs of irritation or infection and clean them with a clean cloth or eyewash if necessary.
• Keep your dog's vaccinations up to date to protect them from certain infections.
• Keep your dog's nails short to prevent them from accidentally injuring their own or other dogs' eyes.
• Keep your dog away from potential allergens or irritants, such as smoke, perfume or cleaning products.
• Have your dog examined regularly by a vet to detect and treat any possible illnesses at an early stage.