You were suffering from high astigmatism
or scar tissue, formed in your eye has been treated by laser surgery
and will not occur again.So don't worry about the same.
The black dots are called floaters and is common among mypoic patients.The retina
specialist will confirm that there are no holes or tears in your retina,especially the outer or periphery of the retina.
As you already have a lazy right eye,please do not worry,but do get regular checks for both eye especially the stronger eye,in your case the left eye.
Best of luck.Take care.