1) Doctor 2) Eye doctor 3) Snellen 
a physician specializing in diseases of and treatment of the eyes.
• (n.) One skilled in ophthalmology; an oculist.
A doctor who specializes in diagnosing and treating eye problems, including injury and disease.
a medical doctor who diagnoses and treats all eye diseases and eye disorders. Opthalmologists can also prescribe glasses and contact lenses.
a medical doctor who diagnoses and treats all eye diseases and eye disorders. Opthalmologists can also 
<specialist> A physician specialist expert in the treatment of diseases of the eyeball and retina. ... (27 Sep 1997) ... 
(of″thәl-mol´ә-jist) a physician who specializes in ophthalmology, including diagnosing and prescribing treatment for defects, injuries, and diseases of the eye, and is skilled at delicate eye surgery, such as that required to remove cataracts. Called also oculist.
a medically qualified specialist of eye surgery and pathology
Oph`thal·mol'o·gist noun One skilled in ophthalmology; an oculist. 
(ahf-thal-MAH-loh-jist) Physician (MD) specializing in diagnosis and treatment of refractive, medical and surgical problems related to eye diseases and disorders
A specialist in the investigation and treatment of eye diseases and defects.
Type: Term Pronunciation: of′thal-mol′ŏ-jist Definitions: 1. A specialist in ophthalmology. Synonyms: oculist
Ophthalmologist: An eye doctor. A physician practicing ophthalmology. An ophthalmologist is an M.D.
A medical doctor who diagnoses and treats all eye diseases and eye disorders. Ophthalmologists can also prescribe glasses and contact lenses.
[n] - a medical doctor specializing in the treatment of diseases of the eye
A medical doctor who diagnoses and treats all eye diseases and eye disorders. Ophthalmologists can also prescribe glasses and contact lenses.
a doctor who specialises in care of the eyes; treats eye diseases and disorders 
eye doctor noun a medical doctor specializing in the treatment of diseases of the eye
a doctor specializing in conditions of the eyes.
a doctor of medicine specializing in ophthalmology.
Eye doctor.
a physician who specializes in the structures, functionality, and diseases of the eye. An ophthalmologist evaluates and plans treatment of associated eye problems in coordination with other surgical interventions.
a doctor who diagnoses and treats diseases of the eye
A doctor who treats people with eye diseases or eye trauma.