Why is One Eye is bigger than the other, Causes and Treatment

Why is one eye bigger than the other? It is an annoying issue and that can affect your entire appearance. In fact, symmetry is the most important factor to beauty. However, having one eye bigger than the other, is a common problem. Asymmetrical eyes are typically you’re born with, or caused by eye disease, aging or surgery.

Uneven eyes or one eye is bigger than the other – are very common and having uneven eyes is perfectly normal and rarely a cause for concern. Having facial asymmetry is very common and perfectly symmetrical facial features is not the standard.

Although a person is noticeable of their own facial asymmetry, they are rarely noticeable to others. Most people have asymmetrical features, but research indicates that some degree of facial asymmetry is both normal and desirable.

So, read the article till the end to know about why one eye is bigger than the other, some potential causes, treatment and home remedies.

Causes of One Eye Bigger Than the Other

Here are some potential causes of one eye bigger than the other or asymmetrical eyes include:


Genetics are a common cause of uneven eyes. Just like other facial features, you’re likely to have features that are similar to your parents and other family members.  

Having one eye is bigger than the other as a result of genetics is not a cause for concern.


Study shows that a significant link between increasing age and facial asymmetry.

As people get older, the soft tissues in the face relax. The cartilage in the nose continues to grow while the bones do not. These changes can cause uneven or asymmetry eyes.


Sustaining a blow to the face or being involved in a vehicle collision, these can damage your eyes.

Facial trauma may cause displacement or enophthalmos of your eyes. This causes people to appear as if they have one eye bigger than the other.

Lifestyle Factors

Asymmetrical eyes can be caused by many lifestyle factors. Smoking has been related to eyelid ptosis, also known as drooping eyelids, according to a study on sets of twins.

Also, excessive sun exposure can cause skin changes around the eyes. Asymmetrical can lead from sun damage that may affect one side of the face more than the other.


Stroke is a medical condition, when there is a reduction in blood supply to the brain, this can occur. People can develop facial asymmetry due to stroke. If the drooping is extreme, It might affect a person’s eyesight.

Other symptoms of stroke including:

  • Difficulty in understanding and speaking.
  • A sudden headache.
  • Loss of balance or coordination.
  • Numbness or weakness of the face, one leg and one arm.
  • Sudden onset of blurred or double vision.

Bell’s Palsy

Bell’s palsy is a kind of transient facial paralysis that occurs suddenly or temporarily. It can cause one side of the face to droop, and affects the smile and one eye. Its causes are currently unknown, but it may be due to trauma, nerve injury or a viral infection.

Some other signs and symptoms of bell’s palsy:

  • Jaw or ear pain
  • Drooling
  • Headaches
  • Difficulty making facial expressions and emotions
  • Changes in tear or saliva production

Grave’s Disease

Grave’s Disease is an autoimmune disorder that causes overactive thyroid (hyperthyroidism). Individuals with grave’s disease can develop proptosis, or bulging eyes. Asymmetry might develop when this affects one eye more than the other.

Some other symptoms of grave’s disease include:

  • Fatigue
  • Sweating
  • Menstrual changes
  • Anxiety
  • Sensitivity to heat
  • Changes in sexual desire
  • Heart palpitations
  • Unintended weight loss
  • Enlargement of the thyroid gland (goiter)

Treatment of One Eye Bigger Than The other

Treatment of One Eye Bigger Than The other

In most cases, asymmetrical eyes or uneven eyes aren’t usually needed. This is true that asymmetry is the result of aging and genetics.

However, if an underlying medical condition requires treatment for this condition. Treatment may also be required if asymmetrical eyes are causing vision problems. There are many things that can be done to make your eyes appear more symmetrical.

Here are some possible treatments for asymmetrical eyes include:


Botox can be used as a temporary fix for uneven eyes and it is like a nonsurgical option for facial asymmetry. Botox is an injectable muscle relaxer that comes from the bacterium Clostridium botulinum, which can be injected into the area around the eyebrows.

Botox treatment lifts your brows and reduces the appearance of asymmetrical eyes. Generally, results will last for around 3 to 6 months.

Brow Lift

Brow lift also called forehead rejuvenation or a forehead lift, it is a cosmetic procedure to raise your eyebrows. This treatment can give you the face a more youthful appearance and provide greater facial symmetry.

There are different types of surgical techniques that can be used to perform a brow lift, but they will perform the procedure while a person is under general anesthesia. The techniques include:

  • Hairline brow lift
  • Coronal brow lift
  • Endoscopic brow lift

With any surgical procedure, there are some potential risks including:

  • Infection
  • Bleeding
  • Changes to the hairline or even hair loss
  • Scarring
  • An allergic reaction to the anesthetic


Blepharoplasty is a type of cosmetic surgery used to correct uneven eyelids. The procedure will remove excess fat, muscle, or skin from around your eye area to make the eyes appear more symmetrical. Bruising and swelling is common, that a person may experience after this surgery and may last approximately two to five weeks.

Some other risks of this cosmetic surgery include:

  • Infections
  • Scarring
  • Bleeding
  • Allergic reaction to the anesthetic

Orbital Surgery

Orbital surgery is surgery on the eye orbit, which is your eye socket, and it comprises four walls of bone – your eye muscles, eyeball optic nerve and fat.

There are different types of orbital surgical procedures, depending on the problem and area of the eye socket that it affects.

Different surgical procedures are:

  • Repair fractures
  • Remove tumors
  • Reconstruct the anatomy of the socket
  • Remove bones or fat to treat the effects of Graves’ Disease

Home Remedies of Asymmetrical Eyes

If you have minor facial asymmetry, then you can use home remedies to make your eyes appear more symmetrical. Some home remedies options include:

Makeup Techniques: you can make your eyes look more symmetrical using cosmetics. Various contouring and highlighting techniques can help reduce uneven eyes and eyebrows. There are many video tutorials online and even makeup artists can provide you guidance on this.

Eyelid Tape: putting eyelid tape on a sagging eyelid to raise the skin and hide the sagging and asymmetry. These strips are available to buy in the nearest beauty store and even online.

The Final Thoughts

Uneven eyes are considered normal and common, and rarely a medical concern. They are often the result of aging, genetics or lifestyle factors. Most people do not notice their facial asymmetry, and research shows that it may even be a desirable feature.

If you’re concerned about your facial asymmetry, then you can talk with a doctor. It is also a good idea to speak with a doctor if the asymmetry comes on suddenly, or if it is causing vision problems or experiencing other symptoms.

Hopefully, you like this article, if you have any questions and suggestions kindly put them in the comment box below. 

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