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Glossary

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  • occipital lobes
    The parts of the brain that are responsible for perceiving vision and interpreting visual input from the eyes
  • occlusion amblyopia
    A rare form of amblyopia caused by patching treatment.  If a patient has amblyopia in one eye, the ophthalmologist might prescribe patching of the other, stronger eye.  Rarely, the patching can weaken the vision in the patched eye.
  • ophhalmologist
     A physician who graduated medical school and performed a minimum of four years of residency who specializes in the medical and surgical treatment of the eye and vision disorders.
  • optic cup
    The canal in the center of the optic nerve, through which the blood vessels that feed the retina enter the eye.  An excessively large cup can be a sign of damage from glaucoma.  Also referred to as the cup of the optic nerve or optic nerve cup. 
  • optical coherence tomography
    A form of ultrasound that gives highly detailed pictures of the optic nerve and retina.  It can be used to measure the health of the optic nerve in patients who have glaucoma.  Sometimes abbreviated to OCT. 
  • optician
    A professional who specializes in making and fitting glasses. 
  • optometrist
    A non-physician health care professional who specializes in the prescription of glasses and contact lenses and provides primary eye care.  Optometrists attend optometry school, not medical school, after college.  They do not perform eye surgery.  Some optometrists specialize in care for patients with low vision.