Laser eye surgery can be beneficial, but if used improperly can be harmful to the eye. I have seen many PCO referrals from optometrists when the vision impairment was actually the optic nerve or even a BRAO. If optometrists over call PCOs in their referrals, I am concerned they will over laser their patients and miss vision threatening or even life threatening diagnoses. 

if optometrists completed a residency I might be more in favor of expanding their scope into lasers. However, as this is not the current state of affairs I recommend  against expanding scope for patient safety.