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2. These Stylish, Doctor-Approved Reading Glasses Can Help ... - AOL

   www.aol.com/lifestyle/best-doctor-approved...

   The best reading glasses require great lenses, affordability, and durability. Here, experts explain what to find in a pair, and reviewers recommend their faves. These Stylish, Doctor-Approved ...

3. Visual acuity - Wikipedia

   en.wikipedia.org/wiki/Visual_acuity

   For 6/6 = 1.0 acuity, the size of a letter on the Snellen chart or Landolt C chart is a visual angle of 5 arc minutes (1 arc min = 1/60 of a degree), which is a 43 point font at 20 feet. [10] By the design of a typical optotype (like a Snellen E or a Landolt C), the critical gap that needs to be resolved is 1/5 this value, i.e., 1 arc min.

4. Laser blended vision - Wikipedia

   en.wikipedia.org/wiki/Laser_blended_vision

   Ophthalmology. [edit on Wikidata] Laser blended vision is a laser eye treatment which is used to treat presbyopia (ageing eyes; [1] progressive loss of the ability to focus on nearby objects) or other age-related eye conditions. [1] It can be used to help people that simply need reading glasses, and also those who have started to need bifocal ...

5. Eye chart - Wikipedia

   en.wikipedia.org/wiki/Eye_chart

   An example of the Landolt C eye chart (also known as the Japanese eye chart.). Numerous types of eye charts exist and are used in various situations. For example, the Snellen chart is designed for use at 6 meters or 20 feet, and is thus appropriate for testing distance vision, while the ETDRS chart is designed for use at 4 meters. [16]

6. People who wear glasses are smarter, study claims - AOL

   www.aol.com/news/people-wear-glasses-smarter...

   Check out these smart famous glasses wearers: Researchers at the University Medical Center in Germany linked spending more time in school and achieving higher level of education to nearsightedness.

7. Vertex distance - Wikipedia

   en.wikipedia.org/wiki/Vertex_distance

   Vertex distance is the distance between the back surface of a corrective lens, i.e. glasses (spectacles) or contact lenses, and the front of the cornea. Increasing or decreasing the vertex distance changes the optical properties of the system, by moving the focal point forward or backward, effectively changing the power of the lens relative to ...