During a low vision assessment, we will perform an examination to identify any refractive errors (problems with focusing) and demonstrate low vision devices such as specialist spectacles, magnifiers or telescopes that could help you see better. Electronic magnifiers are also available for demonstration, and we will also talk to you about optimal lighting and other methods to make the most of your remaining vision.
Magnifiers
Magnification devices can be hand-held, freestanding, or mounted on a headband or on your eyeglasses. You can also wear magnifiers around your neck. Many models have a built-in light or incorporate various levels of magnification.
Telescopes
You might try any of a variety of miniature telescopes and binoculars, some worn like eyeglasses. They may help you with distance viewing.
Special eyeglasses
You may find that stronger-than-normal bifocal or trifocal glasses help you see better. Or you may have success with high-power, "half-eye" reading glasses. These help the good spots in one eye cancel out the bad spots in another.
Electronic technology
Many "high-tech" vision aids are available. They include video reading systems that enlarge type 60 times, auto-focus spectacle telescopes and talking computer systems.
People are considered to have “low vision” when their eyesight cannot be corrected by ordinary glasses, contact lenses, medication, laser treatment or surgery. However, they can enhance their ability to accomplish tasks with the use of compensatory visual strategies, low vision and other devices, and environmental modifications.
Causes of low visionConducted by specially trained ophthalmologists and optometrists, the low vision examination is designed to accurately evaluate how one’s vision functions in dayto-day living.
As a result of this examination, you may be prescribed specific devices to make best use of your existing vision. In many cases, more than one visual device may be required, such as magnifying lenses for close-up viewing and telescopic lenses for seeing in the distance.
We can equip you with techniques to maintain an independent lifestyle by offering guidance for making changes in your home as well as group support from others with low vision.
Low vision devices or aids are optical and non-optical in nature. Optical devices use lenses or combinations of lenses to provide magnification. They should not be confused with standard eyeglasses. There are five main kinds of optical devices: magnifying spectacles, hand magnifiers, stand magnifiers, telescopes and closedcircuit television. Different devices may be needed for different purposes. Training in how to use these devices is provided at our low vision rehabilitation centre.
The simplest non-optical technique is to bring the object of interest closer. Non-optical low vision devices include large print books, check writing guides, enlarged phone dials, talking appliances (timers, clocks, computers), and machines that scan print and read out loud.
Closed circuit televisions (CCTVs) are video magnification systems capable of higher levels of magnification and can also manipulate the brightness and contrast of the image. Other aids include electronic reading technology, which includes Braille printers and Braille translation software, print enhancing software such as screen magnifiers and machines and software for converting text into speech.
Determining the right kind and amount of light needed for visually impaired individuals is the most critical step. Moreover, every person responds differently to the various kinds of lighting available.
Tips on lighting in your home and workplace:
You will receive appointment confirmation through email. Please check your email.