Hi....This is a minor blip in your recovery even though it seems horrible to you. Chemosis is a collection of fluid under the mucous membrane covering the eyes and this can sometimes be much more than you are having now. Steroidal drops or lubricants can hasten the absorption of the fluid and all will be fine. Having said this, it is always recommended that you present this to your surgeon and make sure that he/she is comfortable with the approach to the issue.
Do not worry, that is swelling of the lining of the eye (the conjunctiva) and it will go away soon. Sometimes steroid eyedrops can help it. There may also be some bleeding there which could spread and make the white part of they eye look red for a while. That will go away too.