The white part of the eye (sclera) is visible in Dogs
When to visit the vet?
Non-urgent see a veterinarian within 2–3 days
ORANGE/RED in cases of Eye pain, corneal dryness (the eye can’t be closed), exophthalmos/proptosis, trauma, or worsening vision.
Unsure about what’s wrong with your pet? Feel free to use our Symptom Checker for more clarity
Definition
The white part of the eye, also called the sclera, is normally not visible in dogs. If the sclera becomes visible, it can be a sign of a health issue with various possible causes.
Can Occur with the Following Diseases:
Basics and possible causes
The sclera is the white, outer part of the eye that serves as a protective layer for more sensitive structures such as the cornea and the retina. Under normal circumstances, the sclera is covered by the eyelids and is not visible. If it becomes visible, this may indicate a change in the position of the eye or a problem with the eyelids.
One of the most common causes of visible sclera is so-called enophthalmos, in which the eyeball sinks deeper into the orbital cavity. This can be caused by dehydration, Weight loss, or loss of muscle around the eye. Another possible cause is exophthalmos, in which the eyeball protrudes, which can be caused by tumors, Inflammatory conditions, or infections.
Another cause could be an eyelid malposition, such as ectropion, in which the lower lid turns outward and exposes the sclera. Neurological disorders affecting the muscles around the eye can also increase the visibility of the sclera.
It is important to note that visible sclera can also indicate more serious conditions, such as glaucoma, in which increased intraocular pressure pushes the eye forward, or corneal ulcers, which can cause Swelling and inflammation of the eye.
Typical accompanying symptoms
- Eye redness: A common symptom that indicates inflammation or irritation of the eye.
- Watery eyes: Excessive tearing can indicate irritation or an infection.
- Changes in pupil size: Irregular pupil size can indicate neurological problems or increased intraocular pressure.
- Eye pain: Dogs may show signs of pain by squinting or rubbing the affected eye.
- Behavioral changes: A dog with eye pain or visual disturbances may become withdrawn or restless.
When to see a vet?
A vet visit is urgently needed if the sclera suddenly becomes visible, especially if it is accompanied by other symptoms such as redness, Swelling, or Pain. An early diagnosis can help prevent serious eye damage.
Even if changes occur gradually, you should consult a vet to determine the cause and prevent worsening. If there are signs of Eye pain or vision problems, an immediate vet visit is essential.
Symptom recognition for the pet owner and veterinary diagnostic procedure
Pet owners should watch for signs that point to visible sclera, such as changes in the shape or color of the eyes. Regularly checking your dog’s eyes can help detect problems early.
At the vet, a thorough eye examination is performed, including an assessment of the eyelids, pupil response, and intraocular pressure. Special tests such as a slit-lamp exam or tonometry to measure intraocular pressure are also often used.
In addition, imaging procedures such as ultrasound or X-rays may be required to identify underlying problems such as tumors or structural abnormalities.
What the pet owner can do and professional therapy options
As a pet owner, you can take a few steps to relieve your dog’s discomfort until veterinary treatment is provided. Make sure the dog does not rub its eyes, for example by putting an Elizabethan collar on it.
Keep the eyes clean by gently wiping them with a damp, clean cloth to remove dirt or foreign bodies. Do not use human eye drops or medications unless they have been prescribed by a vet.
Monitor your dog closely for signs of worsening and make sure it stays in a calm, low-stress environment until you can consult a vet. This can help prevent further irritation or injury.
Outlook on current research
The visibility of the sclera can be an interesting research area in dogs, as it may indicate both anatomical and pathological changes. Current research focuses on better understanding the exact relationship between visible sclera and various eye conditions. Some studies are examining whether genetic factors play a role, especially in breeds that are more prone to eye diseases. In the long term, this research could lead to improved breeding strategies that reduce the risk of such conditions.
Another interesting area of research is the development of diagnostic tools to help veterinary professionals better assess the severity of scleral visibility. These tools often use imaging techniques and artificial intelligence to detect subtle changes in eye health at an early stage. This could allow veterinarians to intervene earlier in the disease process and potentially slow or even prevent progression.
Research is also being carried out on therapeutic approaches that can help treat eye conditions in dogs. This includes the development of new medications and surgical techniques specifically aimed at treating conditions that affect the sclera. There are also efforts to identify preventive measures that can help dog owners protect their pets’ eye health before serious problems occur.
Another emerging research area is the investigation of environmental factors that can influence scleral visibility. This includes, for example, the effects of diet, lifestyle, and environmental pollution on eye health. These studies could provide valuable information on how external factors increase the risk of eye disease and how they might be modified to improve dogs’ health.
Some research projects also address the role of inflammatory processes in connection with visible sclera. By understanding how Inflammatory conditions in the eye arise and develop, researchers hope to develop more targeted treatments that not only relieve symptoms but also address the underlying causes of the inflammation.
In summary, current research aims to gain a more comprehensive understanding of the complexity of eye health in dogs and to find new ways to improve animals’ quality of life. This work could ultimately lead to better diagnosis and treatment protocols tailored to the specific needs of different dog breeds.