Hey Aishwarya.

Considering that your rank is 4959, which is very good you seem to have a very fair chance opthalmology seat in a good college under the  50% all India quota. You have even better chances if you have an institutional preference quota or the under the state quota too.

You can use the link which is given below to check the predictions regarding which college you have a chance to get in.

https://medicine.careers360.com/neet-pg-college-predictor

Best of luck!