Thank you for your query.
If the ophthalmologist has been doing a regular check-up for ROP then he would certainly noted the squint
. I suggest that you get his eyes checked up. By shielding the normal eye the muscles of the eye that is squinting can be exercised and the squint may become less. If there is refractive error
then that also needs to be corrected before surgery is contemplated.
I hope I have answered your query to your satisfaction.
Wishing your son an early recovery.
Rajiv K Khandelwal