How can I correct my uneven eyes? One eye is noticeably smaller than the other especially when I smile.

Many different situations can lead to uneven eyelids. Some of these can be treated non-surgically and conservatively, even using some very advanced injection techniques with filler or very precise placement of Botox. Some situations truly do require surgery to resolve. 
It is important that you seek a consultation with an eyelid expert to delineate the exact cause and treatment options.
To ensure you are receiving the highest level of care, seek out a modernly trained, new-school dermatologic surgeon, oculoplastic surgeon, facial plastic surgeon or plastic surgeon who is board certified and fellowship trained in one of these "core four" cosmetic specialties. Membership in organizations like the American Academy of Facial Plastic and Reconstructive Surgery help to identify a highly trained surgeon.
Cameron Chesnut
#realself500 Physician

It's difficult to say without the benefit of a formal evaluation. This is my expertise and a huge portion of my practice. Asymmetry is normal and expected. See an expert who does facial shaping with surgical and non surgical methods to get a comprehensive option. Best, Dr. Emer.

It is often very difficult to fully evaluate orbital or eyelid asymmetry based on photos alone. In some cases, the visible differences might be due to ptosis or drooping of the upper lid, while others might be due to genetic brow asymmetry or bony orbital asymmetry. Some of these can be corrected with non-surgical intervention such as Botox injections, while others might require surgery to improve. In many cases, there might not be a need for any treatment at all. 
Be sure to see an expert for an in-person exam.
All the best,

The eyes are the most common place to have asymmetries. There are some main causes that most patients fall into. This is in no particular order. You will need a good facial analysis to determine as some of this is dynamic and needs to be assessed with movements.1. Hypoplastic maxillary sinus (the eye then sits deeper in the eye socket giving a smaller appearance to the eye). This is not a medical problem but is important if you were to have sinus surgery2. Upper lid ptosis (weakness of the muscles that open the upper lid). To diagnosis this we would need to see you in clinic. 3. Brow ptosis (weakness of the muscle of the forehead which lifts the brow. This then leads to the upper lid being lower than it should be.For you it is hard to tell exactly with still photos. The fact that it worsens when you smile makes me lean towards a muscle weakness/neural issue but again a good physical exam and facial analysis is required. Hope this helps.Best of luck,DrC

There are multiple anatomic abnormalities that can result in facial asymmetry. These may include deformities of the orbital bones, eyelid soft tissue and eyebrows. In most cases, they are relatively minor, but in some cases, they may be severe and extremely noticeable. Depending upon the deformity, treatment may or may not be possible. Although it's hard to tell exactly what's going on from your pictures, I suspect you have boney orbital asymmetry. It appears that on the side of your lowered brow, you also have a depressed orbital rim and flattened cheekbone.Asymmetry of the facial bones can be a major contributor to facial asymmetry. When this occurs, it's not unusual to have one side of the face that has a depressed orbital rim and flattened cheekbone and an eye that appears smaller than the opposite side. This is often related to a condition called plagiocephaly.When this situation arises, it's possible in some cases to disguise asymmetry. Unfortunately, it's not possible to correct this deformity without major surgery. In this case, a unilateral brow lift in combination with Botox on the opposite side are both possible options. If you're considering treatment, it's important that you meet with a board certified plastic surgeon who can help you with this decision.

From your photographs, it appears that you have both ptosis (droopy eyelid) and dermatochalasis (fullness/puffiness) of your right upper eyelid. A combined ptosis repair and blepharoplasty would probably correct your problem. Make a consultation with an oculoplastic surgeon. 

There could be combination of right upper eyelid ptosis (droopy eyelid) and right enophthalmos (sunken eye). There is likely pre-existing facial asymmetry with smaller right face area.  See an oculoplastic specialist for evaluation and possible treatment.

From a casual look at the photos, the most likely assumption would be that you have ptosis, which is a heavy upper eyelid.  While this is the most likely possibility, another potential cause for your issue is enophthalmos.  This is the medical term for an eye that sits deeper in the eye socket than normal.  A prior history of an orbit fracture on the right side would be consistent with such a condition.  There can also be a progressive condition called silent sinus syndrome where inner opening to the maxillary sinus closes due to scaring.  This leads to a slowly progressive loss of maxillary sinus volume.  The loss of sinus volume corresponds to a gain in eye socket volume.  The eye socket sits directly above the maxillary sinus.  The first step in addressing this issue is to make a firm diagnosis.

Hi John I can see what you are describing - the right eye seems smaller than the left eye.  As you probably know, everyone has some asymmetry to the face, including me.  I actually think that the asymmetry is your left eye being more "projected" or "prominent" compared to the more normal right eye.  It is very difficult to determine by pictures so would definitely recommend a consultation by a qualified surgeon in your area.  A CT scan may help to assess the bony structures of the eye socket and position of the eyes.  The surgeon will also take detailed measurements of the eyelid position and determine the best options for you. 

If you feel that this problem has been going on for a long time, than likely you have typical facial asymmetry, which can be common. However, as we start to age, this problem can become more accentuated. From your photographs, it appears your right brow is also lower, which can give the appearance of a smaller eye. I suggest having an evaluation by an eyelid specialist who can take a complete history and thorough examination including a neurological exam. Treatments may involve surgery or even non surgical like botox to relax an overactive muscle around the eye or lift the brow slightly. Hope this helps.