When it comes to eye care, all three play an important role but it is important to understand the difference. Ophthalmologists are specialised doctors, trained to practice medicine and surgery. They can diagnose and administer treatment for all eye conditions. On the other hand, an optometrist is a healthcare professional that primarily performs eye exams and handles treatment for vision changes. They are not qualified as medical doctors. Lastly, an optician is a technician trained to design and fit lenses on corrective instruments. These specialists aren’t qualified to diagnose or offer treatment for any eye disease.