Opticians are trained professionals who specialize in fitting and dispensing eyeglasses and contact lenses. They work closely with customers to determine their vision needs and help select the right eyewear based on prescriptions provided by optometrists or ophthalmologists. In addition to fitting eyewear, opticians also provide guidance on lens options, frame styles, and proper care for glasses and contacts. They may also perform minor repairs and adjustments to ensure that the eyewear is comfortable and effective for the wearer.