Change in Eye Appearance
Changes in the appearance of your eyes can be caused by many different conditions, ranging from mild irritation to problems that require prompt medical attention. Whether you've noticed redness, a swollen eyelid, yellowing of the eye, a new bump, bulging eyes, crossed eyes, or changes in your pupils, it's important to understand what these changes may mean. Explore the topics below to learn about common causes, symptoms, and when it's time to schedule a comprehensive eye examination.
Red Eye
Red eye occurs when the blood vessels in the surface of the eye become enlarged or irritated. It can be caused by many things, including infection, allergies, dryness, irritation, or injury. An eye exam can help find the cause and provide the right treatment.
Unequal Pupils
Unequal pupils can occur when the pupils are different sizes. It may be normal for some people or a sign of an underlying condition. It can be caused by injury, nerve problems, medications, eye diseases, or other medical issues. An eye exam can help find the cause and ensure appropriate care.
Bulging Eyes
Bulging eyes occur when the eyes are pushed forward more than normal. It can be caused by thyroid eye disease, tumors, inflammation, or other conditions. An eye exam can help find the cause and guide the right treatment.
Yellow Eyes
Yellow eyes occur when the white part of the eye (sclera) becomes yellow due to a buildup of bilirubin in the blood. It can be a sign of liver problems, gallbladder issues, or other medical conditions. An eye exam and medical evaluation can help find the cause and guide appropriate care.
Crossed Eyes
Crossed eyes occur when the eyes are not properly aligned and point in different directions. It can affect one or both eyes and may be constant or occur at times. It can be caused by muscle imbalance, nerve issues, vision problems, or other conditions. An eye exam can help find the cause and recommend the right treatment.
Concerned About a Change in Your Eye's Appearance?
Changes in how your eyes look should never be ignored. Our experienced ophthalmologists and optometrists can diagnose the cause and recommend the appropriate treatment to protect your vision and eye health.
Frequently Asked Questions
Why has my eye suddenly changed in appearance?
Changes in eye appearance can result from allergies, infections, injuries, inflammation, thyroid disease, eyelid disorders, or other medical conditions. Some changes are harmless, while others require prompt evaluation.
When should I be concerned about a change in my eye's appearance?
Seek prompt eye care if you experience:
- Sudden redness with pain
- Vision loss or blurred vision
- Bulging of one eye
- A new unequal pupil
- Yellowing of the white of the eye
- Significant swelling
- Double vision
- Eye trauma
Can eye appearance changes happen without affecting vision?
Yes. Many conditions affect the appearance of the eye before vision changes occur. Even if your vision seems normal, new changes should be evaluated by an eye care professional.
What conditions can cause changes in eye appearance?
Common causes include:
- Red eye
- Conjunctivitis (pink eye)
- Blepharitis
- Styes and chalazia
- Thyroid eye disease
- Subconjunctival hemorrhage
- Pinguecula
- Pterygium
- Eyelid inflammation
- Allergies
- Eye injuries
Are changes in the pupils normal?
Sometimes. Temporary pupil changes can occur from medications or lighting, but persistent or sudden unequal pupils should be examined promptly to rule out neurological or eye conditions.
Why are my eyes becoming yellow?
Yellowing of the eyes is often related to elevated bilirubin levels and may indicate liver or other systemic health conditions. Less commonly, growths such as pinguecula or pterygium can cause localized yellow discoloration. An eye examination can help determine the cause.
Can allergies change how my eyes look?
Yes. Allergies commonly cause red, itchy, watery, and swollen eyes. Symptoms often improve with allergy treatment but should still be evaluated if they persist.
What if my eye looks normal now but looked different earlier?
Some eye conditions come and go. If you noticed significant redness, swelling, drooping, or another unusual change—even if it has improved—it's still a good idea to schedule an examination to determine the underlying cause.
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