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| LOW VISION CLINIC |
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There are certain diseases in which in spite of best effort by the patient & eye surgeon the vision can not be improved. As such persons are called as having Low Vision.
Low vision is defined as the vision less than 6/18 in the better eye which doesn’t improve with regular glasses or contact lenses and/ or visual field less than or equal to 20* in the better eye.
Low vision can not be treated by regular form of eye glasses or contact lenses.
With latest advance ophthalmic science it may be not possible to increase their vision , Surya Eye can help them making best use of these techniques.
We require special form of optical and non optical devices to get improvement in the vision.
Living with Low Vision
Many visually impaired people experience difficulty with regular activities such as cooking, shopping, managing finances, watching television, reading, and taking care of their
personal needs. Many people with low vision have concerns about finding
and keeping a job, dealing with friends and family members, getting around,
and participating in recreational and social activities.
But there are numerous low vision aids and scores of proven strategies
for coping with low vision. These aids and strategies can help visually
impaired people maximize their remaining vision and maintain
their independence.
CAUSES OF LOW VISION
There are many causes of low vision. Some of these are:
- High Refractive Error
- Glaucoma
Glaucoma is an eye disease in which the normal pressure in the eye rises. This pressure can cause damage to the optic nerve and other parts of the eye. People who have glaucoma lose their peripheral vision, and as the disease worsens, the field of vision narrows.
- cataract
A cataract is a clouding of the eye's lens. Because the lens focuses the eye, a person's vision blurs when the lens becomes cloudy, just as if one was trying to look at something through a waterfall. Glare can also be asignificant problem for people with cataracts.
- Retinal Problems :
The following problems m also be the cause of low vision :
- Diabetic Retinopathy
Diabetes can damage the capillaries of the retina,
causing the retina to leak fluid onto the macula,
and making the retina swell and blur vision.
Without treatment, new blood vessels will grow
along the retina and bleed, potentially destroying
the retina.
People with diabetic retinopathy have
blurred and spotty vision
- Macular Degeneration
The macula is the central part of the retina and is
responsible for reading and other tasks that require
the detection of fine detail. Macular Degeneration
occurs when the macula becomes either thin
(dry macular degeneration) or elevated and uneven
due to leaking blood vessels under the retina
(wet macular degeneration).People with macular degeneration have mostly
peripheral vision and blurry or no central vision.
- Other Macular Problems (Mycology etc)
- Eye Trauma
- Persistent Hypo-plastic Primary Vision (PHPV)
SYMPTOMS
- Blurred Vision
- Diminished Vision
- Flashes and/or Floaters
- Colour Halos
- Occasional Pains
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Sight with Gasses or CL
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| Normal Vision |
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| Poor Vision |
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TREATMENT
In low vision, once vision can not improved we try to make best possible use of the available vision.
After proper detailed eye examination ,the treatment may consist of providing some LOW VISION OPTICAL or NON – OPTICAL AIDS, CCTV & computer aids. |
HAND MEGNIFIERS |
TELESCOPE |
TABLE LAMP |
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- Low Vision Optical Aids
These are numerous devices in the form of magnifier. These depend on the requirement of near or far vision.
One device may be used for reading , whereas the other for seeing movies on TV.
These magnifier are available in many shapes,sizes & types – viz, hand, pocket, stand type. Some of them may look like telescope and other like glasses.
The Surya Dedicated Low Vision Clinic has such recommendation & magnifiers,so that patients can try them in our home-like environment to determine their effectiveness and ease of use.
- Low Vision Non-Optical Aids
There are several non – optical aids are readily available devices to provide independence to people with low vision.
Some of these are:
- Talking clocks & watches
- Bumpy marks for providing on dials of appliances like oven , fridge etc.
- To help with writing, there are signature, letter, and envelope guides, bold black pens, and paper with
thick black lines that are more easily seen. Playing cards, crossword puzzles, and even some board
games come in low vision versions.
- The Low Vision Center has many non-optical aids available for visually impaired people to try. The Low
Vision Center also sells some of the more commonly used aids at competitive prices as a
convenience to our clients.
 
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3. Closed Circuit Television
There are several high tech aids available to help people with low vision. A reading machine or a CCTV can magnify reading material, medicines bottles, photos etc and display the images on a TV monitor. |
3. Computer Aids
There are many aids available for computer literate person with low vision.
These devices can make it easier for computer users to use word
processing programs, surf the Internet, and send email, but they
can also help non-computer users handle many non-computer
tasks. For instance, one can scan into the computer a magazine
article that the computer then will read aloud.
You can use a hand magnifier or special screen magnifier to make
the computer screen look larger, or you can use a screen magnification
program like Zoom Text, Lunar, or Magic.
They enlarge the text and images on the monitor.
Many software programs, including Windows and
Microsoft Office, allow text and icons to be enlarged
and to use high contrast color schemes.
RECOMMENDATIONS
Knowledge is the key to living with low vision
People with low vision can enhance their quality of life by learning which optical and non-optical aids can help them, and by integrating strategies for dealing with the visual impairment into daily life.
A person with low vision must practice using adaptive aids until they become second nature.
Motivation and Attitude are perhaps the most important factors in determining one's success in using low vision aids. If people are willing to give some energy and effort to learning how to make the best use of their remaining sight, they can do nearly everything they did before, perhaps just in a different way.
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