Can contact lens solution be used as eye drops?

Yes, as long as it is a multi-purpose solution. Never put hydrogen-peroxide-based contact lens disinfection solutions in the eye. Multi-purpose solutions contain ingredients designed to disinfect, protect and clean contact lenses. Drops designed to lubricate the eyes however sometimes contain additional ingredients that target tear film health and stabilization, and as such lens cleaner is not intended as a replacement for eye drops and artificial tears.