Glossary of Eye Definitions and Glasses Terms

Want to discover all things eyewear? Find out more about your eyeglasses and sunglasses, word by word.



Presbyopia refers to the age-related deterioration of the eye’s ability to focus on objects at a close distance. The age presbyopia vision begins to become notable usually around your early to mid-forties. The condition is common and easily diagnosed, with several options for treatment and correction. Presbyopia treatment options range from over-the-counter reading glasses, prescription glasses or contact lenses, to refractive surgery, or even getting presbyopia correction lens implants, according to the severity of the diagnosis.

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