One Of My Eyeballs (left) Feels Bigger Than The Other.

one of my eyeballs (left) feels bigger than the other. On that same eye the iris is also a bit higher than the other eye. you can see the chroid below the iris while the right eye you cannot. this "higher" iris with the chroid showing under is more noticeable in pictures. almost looks like my left iris is "flaoting". i dont really have any problems seeing or any pain, but sometimes my left eye does feel heavier. I have noticed this for a while now but it almost seems like it might be getting worse over time. am not sure what the cause of this is and if it has any relations to my health. Thank you in advance for your help.