Is it permissible for a woman who wears the niqab to undergo an eye corrective surgery performed by a male doctor when there is a female doctor who can perform the same surgery?

If the area of theila's examination does not exceed the eyes or face, this is lighter and permissible out of necessity.

If a Muslim female doctor who is expert and competent to perform the operation is found, then do not go to a male doctor.

However, if the female doctor's experience and competence are less, there is no harm in going to a male doctor.