One Eye Bigger Than The Other: 12 Causes and Treatment


One eye bigger than the other is called an asymmetry eyes. It is not a rare condition as terrible as many people who experience an eye bigger than the other. This condition may be caused by a lot of things even an underlying medical condition. However, having an eye bigger than the other does not call for a worry. As you read this article, you will get to know the cause of and treatment for this condition.

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12 Causes of One Eye Bigger Than The Other

There are many sources of this condition and they include;

1. Genetics: Genetics is the most common cause of an asymmetry eyes. You can have same features as your parent, sibling or other relative. Having one eye bigger than the other is not an exception of this features.

One eye bigger than the other

2. Aging: As people get older, that soft tissues in the face tends to relax. The cartilage in the nose continues to grow while the bones so not. This is a cause of an asymmetry eyes.

3. Natural Asymmetry: This is entirely normal. One eyes can be different in size and shape making them to appear asymmetrical. In an asymmetry eyes, one eyes tends to be narrow while the other eyes is round and wide.

4. Grave’s Disease: Grave’s disease is an autoimmune disorder that cause overactive thyroid. It causes the swelling of the eyes and it makes the eye reddish, watery and itchy. The swelling makes an eye to look bigger than the other if only one eye is affected by the grave’s disease

Other symptoms of grave’s disease includes;

  • Enlarged thyroid glands.
  • Heart palpitation
  • Sensitivity to heat
  • Sweating
  • Anxiety
  • Fatigue
One Eye Bigger Than The Other
One Eye Bigger Than The Other

5. Enophthalmos: This condition changes the position of the eye after an injury on the eyes. This could be caused by some medical conditions. Aside making one eye bigger than the other, it also has the following symptoms;

  • Pain in the eyes
  • Vision issues
  • Pulse popping out of the affected eye.
  • Fever

6. Stroke: Stroke occurs when there is a reduction of blood flow to the brain. A stroke can also cause an asymmetry eyes. Stroke has other symptoms aside making one eye bigger than the other.

They include;

  • Blurred or double vision
  • Loss of balance
  • Headache
  • Numbness of the face, one leg and one arm.
  • Difficulty in understanding.

7. Lifestyle Factors: Some lifestyle like smoking can cause one eye to be bigger than the other. Excess exposure to the sun can damage one of your eyes causing it to be lesser than the other.

8. Strabismus: This is also known as a crossed eyes. This condition makes it impossible for a person to align his or her eyes as each eye can turn upward, downward, inward or outward independently. It occurs mostly in babies and lesser in adults. Other symptoms may include;

  • Double vision
  • Impair vision

9. Bell’s Palsy: This is a this of facials paralysis that occurs temporarily. It can cause one eyes to be bigger than the other. Other symptoms of a bell’s palsy includes;

  • Headache
  • Drooling
  • Eye, ear or jaw pain
  • Difficulty in smiling
  • Changes in the production of tears.

10. Sinus Condition: In a way, sinus condition can be the cause of about enophthalmos which is one of the causes of one eye bigger than the other. These types of sinuses includes;

  • Chronic maxillary Sinusitis
  • Maxillary sinus tumors
  • Silent sinus syndrome

Sinus condition also has the following symptoms;

  • A sore throat
  • Lack of sense of taste and smell
  • Pain
  • Nasal discharge
  • Swelling
  • Fatigue

11. Amblyopia: This is caused by a typical developmental of one’s vision at the period. It causes one eye to move inward or outward unconsciously making it look like they are not working synchronically with each other. Thus leads to an impaired vision and also makes one eye bigger than the other.

12. Ptosis: This is also known as a droopy eyeball. It can happen either naturally or through a causal agent which includes; eye infection, nerve issues, migraine and some allergies. It is a disorder that occurs when the lavatory muscle that holds the eyeliner stretches until it detaches. This detachment causes one eye to be bigger than the other eyes.

Treatments for One Eye Bigger Than The Other

1. Blespheroplasty:

This is known as a costume surgery. It is used to correct the uneven eyelids. In this surgery, excess fat, muscle or skin is being removed around the eye area making the eye appear more symmetrical. After this surgery, you would experience some bruises and swelling that may last for more than a month.

2. Orbital Surgery:

This is a this of surgery that affects your eyes orbit. Your eyes orbit consist of four (4) main walls of bones which are; your eyes, muscle, eyeballs optic nerve and fats. This surgery can be to treat the condition of a person having one eye bigger than the other.

3. Botox:

This is a non survival solution for an asymmetry eyes. It is an injected around the eyebrows to relax your muscles and it contains bacteria relaxer. It can be used as a temporary treatment for an asymmetry eyes. To do this injection, that eyebrows are lifted reducing the asymmetry eyes and its effect may last for up to 6 months.


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4. Brow Lift:

This is a surgery performance while a patient is under general anesthesia. It is the raising of the eyebrows to provide a better facial and rye symmetry. This could also be called a forehead lift or a forehead rejuvenation. This procedure does not bring about a permanent solution. If the cause of your asymmetry eyes is age, this procedure might not help.

5. Make Up:

Facial makeup can cover up an asymmetry eyes. By the use of a concealer, contour and highlighter, certain features are covered and you get a balanced look. To find perfect ways to go about this, you would need to check some make up videos tutorial online preferably YouTube or even visit a makeup artist to train you physically.


Having one eye bigger than the other should not make you feel inferior. In as much as it does not look so good, it is not something to be worried about. If you are so concerned about fixing your asymmetrical eyes, then visit your Doctor. Your Doctor will know the right treatment to offer you which will make you get back to normal with time.