Orthoptists are healthcare professionals who specialize in the diagnosis and treatment of eye movement disorders, such as strabismus (crossed eyes) and amblyopia (lazy eye). They work closely with ophthalmologists and optometrists to provide comprehensive care for patients with these conditions. Orthoptists use a variety of techniques to evaluate and manage eye movement disorders, including visual acuity testing, eye muscle function testing, and binocular vision testing. They also work with patients to develop treatment plans that may include exercises, eye patches, or corrective lenses.