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2. Eyeglass prescription - Wikipedia

   en.wikipedia.org/wiki/Eyeglass_prescription

   Eyeglass prescription. Using a phoropter to determine a prescription for eyeglasses. An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient.

3. Zenni Optical - Wikipedia

   en.wikipedia.org/wiki/Zenni_Optical

   Website. www.zennioptical.com. Zenni Optical (formerly 19dollareyeglasses.com) is an American online retailer of prescription glasses and sunglasses. Founded in 2003 by Tibor Laczay and Julia Zhen, it is based in Novato, California. The company sells more than 2,000 types of prescription glasses and sunglasses as well as 45 types of contact lenses.

4. Corrective lens - Wikipedia

   en.wikipedia.org/wiki/Corrective_lens

   Corrective lens. A pair of contact lenses, positioned with the concave side facing upward. A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia.

5. Make eye exams part of the back-to-school checklist. Your ...

   www.aol.com/lifestyle/eye-exams-part-back-school...

   A good place to start is at yearly check-ups with a pediatrician, who should do a routine vision screening that will detect kids at risk for the most common ailments.

6. Pupillary distance - Wikipedia

   en.wikipedia.org/wiki/Pupillary_distance

   Distance PD is the separation between the visual axes of the eyes in their primary position, as the subject fixates on an infinitely distant object. [2] Near PD is the separation between the visual axes of the eyes, at the plane of the spectacle lenses, as the subject fixates on a near object at the intended working distance. [3]

7. Do blue light glasses actually protect your eyes? Eye doctors ...

   www.aol.com/news/blue-light-glasses-actually...

   Sellers of the glasses, which come in prescription and non-prescription varieties, claim they help keep the eyes healthy, reduce eye strain, improve visual performance, and even help people fall ...