The scope of duties for optometrists is constantly expanding. The main duties of an optometrist include: Vision Services. Regular eye exams, dilated eye exams, vision therapy, and vision testing Prescribing Corrective Eyewear. Eyeglasses, reading glasses, prescription sunglasses, contact lenses, and scleral contact lenses. Fitting Contact Lenses. Soft contact lenses, hard contact Lenses, and scleral contact lenses. Diagnosing and Monitoring Eye Conditions. Related to systemic diseases such as diabetes, cancer, etc. Diagnosing and Managing Eye Conditions and Disease. This includes glaucoma, macular degeneration, cataracts, iritis, styes, and dry eyes. Prescribe oral and topical pharmaceutical medications. Examples include eye drops to treat glaucoma, dry eye disorder, and conjunctivitis (i.e., pink eye). Emergent Eye Care. Foreign body removal, corneal abrasions, etc.