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UV and your vision

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.

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UV and your vision

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  1. UV and your vision

  2. 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

  3. UV is a high frequency light that is not visible

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

  5. Diagram of the eye cornea iris pupil sclera lid margin conjunctiva

  6. UV light can be absorbed by the cornea

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

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

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

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

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

  12. UV light can also be absorbed by the retina

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

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

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

  16. 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

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

  18. Optometrists Association Australia www.optometrists.asn.au Yellow Pages To find an optometrist

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