Some of my Lashes Are Long and Thin on One Eye and the Other Eye is Short and Thick. Any Suggestions to Get Them to Match?

Seek the opinion of an ophthalmologist, once you have received a diagnosis you can discuss treatment options. Best, 

First you have to find out why your have such asymmetric lashes. Then you can consider treatments, such as Latisse. See an ophthalmologist or oculoplastic specialist.

Hi Uneven.  It's not clear from your question whether you are already using Latisse or not.  If you are not using it, we would suggest trying Latisse first as it lengthens the hair growth cycle which may be able to help you even out the lashes.  If you are already using it, perhaps you could use it every day on the shorter side and every 2 or 3 days on the side that is longer.  Good luck.

It is important for you to see your eye doctor and have evaluated why there is a discrepancy between your two eyes.  If there is not a medical reason, then, you might be able to treat the shorter, thicker side with Lastisse to help them grow.