If you have one eye that seems a little bigger than the other, this is not necessarily a concern. Many people have eyes that vary slightly in size and most don’t require medical attention or treatment. However, it’s important to see a doctor if the difference is substantial. In some cases, it could be a sign of an eye or health condition such as enophthalmos, which is when the eye begins to sink into the socket.
Genetics are a common cause of asymmetrical eyes. If your parents or other family members have asymmetrical eyes, this is normal and usually not a sign of anything serious.
It’s also not uncommon for colors to appear a bit different in each eye. This is because of how the eye works and how each eye has different color cells. You may also notice that some light colors are brighter in one eye than in the other. This is called heterochromia and is not something to be concerned about.
Another reason why your eyes might seem asymmetrical is because one of the pupil’s is larger than the other. The pupils are the black centers in the center of your eyes and they naturally change size without you noticing or controlling them. They shrink in bright lights and expand (dilate) in dim lighting. If one pupil is much larger than the other, this is called anisocoria and is a serious eye issue that requires medical attention immediately.