Bioptics (device)
Encyclopedia
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
Visual perception
Visual perception is the ability to interpret information and surroundings from the effects of visible light reaching the eye. The resulting perception is also known as eyesight, sight, or vision...

-enhancement lenses
Lens (optics)
A lens is an optical device with perfect or approximate axial symmetry which transmits and refracts light, converging or diverging the beam. A simple lens consists of a single optical element...

 with extreme magnification, used to improve distance vision for those with severely impaired eyesight, especially those with albinism
Albinism
Albinism is a congenital disorder characterized by the complete or partial absence of pigment in the skin, hair and eyes due to absence or defect of an enzyme involved in the production of melanin...

. They may take the form head-mounted eyeglasses
Glasses
Glasses, also known as eyeglasses , spectacles or simply specs , are frames bearing lenses worn in front of the eyes. They are normally used for vision correction or eye protection. Safety glasses are a kind of eye protection against flying debris or against visible and near visible light or...

 similar in appearance to goggles
Goggles
Goggles or safety glasses are forms of protective eyewear that usually enclose or protect the area surrounding the eye in order to prevent particulates, water or chemicals from striking the eyes. They are used in chemistry laboratories and in woodworking. They are often used in snow sports as well,...

 and binoculars
Binoculars
Binoculars, field glasses or binocular telescopes are a pair of identical or mirror-symmetrical telescopes mounted side-by-side and aligned to point accurately in the same direction, allowing the viewer to use both eyes when viewing distant objects...

, although several brands are designed to be attached to existing glasses rather than being a self-complete form of eyewear. In some jurisdictions, those with low vision may be permitted to drive automobiles when using bioptics.

Bioptic driving

Bioptic driving is a method of driving that utilizes both the patient’s general vision in combination with intermittent spotting through a small telescopic system that improves the sharpness of the patient’s far vision. Bioptic patients drive with their own vision carrier about 95% of the time. When using the bioptic telescope, the patient quickly glances through it to provide details such as street signs, traffic lights and far distant objects. The brief use of the bioptic telescope is much like the quick look all drivers make into their rear view mirror. Bioptic driving requires careful fitting of the system followed by extensive training in both the use of the bioptic and behind-the-wheel driver’s training.

Determining whether a visually impaired individual may become a bioptic driver requires a multidisciplinary approach. This may include the low vision specialist, physicians, driving rehabilitators, occupational therapists and orientation and mobility instructors. The process includes a number of checks and balances to rule out those patients who would not be safe, while identifying those with the potential to be a safe bioptic driver.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK