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2. Visual impairment - Wikipedia

   en.wikipedia.org/wiki/Visual_impairment

   Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception.In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [6]

3. The Best Driving Sunglasses for Road Trips for 2024 - AOL

   www.aol.com/tested-best-driving-sunglasses-road...

   The Light Test. Our setup for the lens performance test of overall light penetration was quite the rig. For context, we performed the test indoors at 1:45 p.m.

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

   www.aol.com/best-doctor-approved-reading-glasses...

   In fact, as many as 34.5 million Americans wear over-the-counter reading glasses, according to the Vision Council. Luckily, reading glasses are easy to get practically anywhere—and they come in ...

5. Corrective lens - Wikipedia

   en.wikipedia.org/wiki/Corrective_lens

   Higher-quality optical-grade glass materials exist (e.g. Borosilicate crown glasses such as BK7 ( n d = 1.51680 , V d = 64.17 , D = 2.51 g/cm³ ), which is commonly used in telescopes and binoculars, and fluorite crown glasses such as the best optical quality low dispersion glass currently in production, N-FK58 made by the German company Schott ...

6. Bioptics (device) - Wikipedia

   en.wikipedia.org/wiki/Bioptics_(device)

   Bioptics, also known as a bioptic in the singular, and sometimes more formally termed a bioptic telescope, is a term for a pair of vision-enhancement lenses.They magnify between two and six times, and are used to improve distance vision for those with severely impaired eyesight, especially those with albinism.

7. Adjustable-focus eyeglasses - Wikipedia

   en.wikipedia.org/wiki/Adjustable-focus_eyeglasses

   Distance vision corrections are made by re-adjusting the lens for distance, instead of by tilting and/or rotating the head to view object through the best part of the lens for the distance. Adjustable focus lenses, like single-focus lenses, also reduce image-jump and spatial distortion in the field of view associated with traditional multi ...