WHAT IS LOW VISION
When a person is unable to see objects beyond a maximum of 3m or 10ft distance with their spectacles or persons who have reduced side vision leading to diificulty in getting about then the person is said to have low vision.
WHAT ARE THE CAUSES OF LOW VISION
Common causes are:
- Age Related Diabetic Retinopathy
- Diabetic Retinopathy
- Hereditary conditions
- Glaucoma
- Optic nerve diseases
WHAT ARE LOW VISUAL AIDS
These are optical devices which make most of the available vision in persons with low vision. They are task specific.
LOW VISION ASSESSMENT IN POORVA EYE CARE
- Assessment of vision
- Asessment of level of difficulty person faces
- Spectacle power check up
- Colour vision testing
- Testing with Low Vision Devices
- Field of Vision Assessment
TYPES OF LOW VISUAL AIDS
There are a number of Low Vision Aids available. Some are used for persons with near vision problems and some are for those with difficulty in distant vision. The type of device is determined after an examination.
AVAILABLE OPTICAL DEVICES
TELESCOPES
- Monocular telescope (Hand held and Spectacle mounted)
- Binocular telescope
- SEE TV (Spectacle model telescope)
DEVICES FOR NEAR
- Spectacle magnifiers
- Stand magnifiers
- Hand held magnifiers
- Dome magnifiers
- Fresnel book magnifiers
- Pocket magnifiers