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2. OrCam device - Wikipedia

   en.wikipedia.org/wiki/OrCam_device

   JAMA Ophthalmology: In 2016 JAMA Ophthalmology conducted a study involving 12 legally blind participants to evaluate the usefulness of a portable artificial vision device (OrCam) for patients with low vision. The results showed that the OrCam device improved the patient's ability to perform tasks simulating those of daily living, such as ...

3. Presbyopia - Wikipedia

   en.wikipedia.org/wiki/Presbyopia

   Myopes considering refractive surgery are advised that surgically correcting their nearsightedness may be a disadvantage after age forty, when the eyes become presbyopic and lose their ability to accommodate or change focus, because they will then need to use glasses for reading. Myopes with low astigmatism find near vision better, though not ...

4. Adjustable-focus eyeglasses - Wikipedia

   en.wikipedia.org/wiki/Adjustable-focus_eyeglasses

   Adjustable focus eyeglasses have one focal length, but it is variable without having to change where one is looking. Possible uses for such glasses are to provide inexpensive eyeglasses for people from low-income groups , developing countries , third world countries or to accommodate for presbyopia.

5. Electronic glasses - Wikipedia

   en.wikipedia.org/wiki/Electronic_glasses

   "Electronic glasses" can also refer to electronically enhanced eyeglasses, sometimes called e-glasses, designed for users who are not necessarily visually impaired. These wearable devices use electronic technology to dynamically improve focus, adjust for available light, monitor and record health data, receive and display information, and/or facilitate control in gaming environments.

6. Vision rehabilitation - Wikipedia

   en.wikipedia.org/wiki/Vision_rehabilitation

   Vision rehabilitation (often called vision rehab) is a term for a medical rehabilitation to improve vision or low vision.In other words, it is the process of restoring functional ability and improving quality of life and independence in an individual who has lost visual function through illness or injury.

7. Corrective lens - Wikipedia

   en.wikipedia.org/wiki/Corrective_lens

   The add segment of the lens for near vision is the D-shaped area. A bifocal is a lens with two sections, separated by a line (see image to the right). Generally, the upper part of the lens is used for distance vision, while the lower segment is used for near vision. The area of the lens that caters to near vision is called the add segment.