UV and your vision. What is UV? Ultra Violet radiation is a component of solar energy Most solar UV radiation is absorbed by the ozone layer More than.

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Presentation transcript:

UV and your vision

What is UV? Ultra Violet radiation is a component of solar energy Most solar UV radiation is absorbed by the ozone layer More than 36,000 additional cases of eye problems will occur from ozone depletion

UV is a high frequency light that is not visible

Eye damage thought to be caused by UV radiation Cataracts Pterygium Cancer of skin around eye Photokeratitis Corneal degenerative changes Age-related macular degeneration

lid margin iris cornea conjunctiva sclera pupi l Diagram of the eye

UV light can be absorbed by the cornea

Cataract Cloudiness in lens of eye Usually gradual loss of vision Common after 60 May require surgery

Pterygium Like skin growing onto cornea Bumpy surface gives irritation and redness Is removed if close to centre of eye

Lid lesions Likelihood increases with age Look for any change in size Any new lesions should be checked ASAP

Photokeratitis Occurs when exposed to large amount of UV (skiing, water sports) Pain, watering, red eye Easily prevented with eye protection

Corneal degenerations Can be from build up of UV over the years Cause pain, tearing, redness, light sensitivity Difficult to treat

UV light can also be absorbed by the retina

Age-related macular degeneration Deterioration of central retina Affects close vision Distorted vision, patches missing Some treatment available

To protect your eyes from UV light Wear sunglasses Wear a broad brimmed hat Have a UV coating on your glasses Wear contact lenses with UV guard

Sunglasses Wrap around is good Australian standards UV protection unrelated to price Choose a colour tint that is comfortable

Optometrists Provide a comprehensive visual examination Detect and diagnose eye health problems Prescribe and supply glasses and contact lenses when required Diagnose and treat eye coordination and focussing problems

Optometrists Are university educated and undertake continuing professional education No referral is required Eye tests attract a medicare rebate

To find an optometrist Optometrists Association Australia Yellow Pages