Who is an individual that makes or sells lenses and eyeglasses?

An individual who specializes in making or selling lenses and eyeglasses is known as an optician. Opticians play a crucial role in the eye care field by helping to fit and adjust eyewear based on prescriptions provided by optometrists or ophthalmologists. They are knowledgeable about different types of lenses and frames and work directly with customers to ensure that their eyewear suits their vision needs and personal preferences. This includes education on lens options, frame styles, and the proper care and maintenance of eyewear.

Ophthalmologists and optometrists are also professionals in the eye care field, but their roles are different. Ophthalmologists are medical doctors who specialize in eye and vision care, including performing surgeries and diagnosing conditions. Optometrists are healthcare professionals who provide primary vision care, including eye examinations and prescribing corrective lenses, but they do not typically manufacture or sell eyewear themselves. The term "visionary" does not apply in this context, as it generally refers to someone with original ideas about the future, rather than a specific role in eye care.