An eye glass shop technician is not a trained eye doctor. Typically known as an optician, the area of knowledge and expertise of an eye shop technician includes adjusting eye glasses, selecting the most appropriate types of lenses, sunglasses, frames, optical aids and simple magnifying devices.
Since, opticians are not trained as an eye doctor; they cannot give eye exams, diagnose medical eye problems such as dry eye, nor provide prescriptions for contacts.