Contact lens
Facts
Handling tips
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Facts
- Though there are many different types readily available these days, including the colored lenses, all contact lenses come under 3 main types:
- SOFT LENSES are soft and comfortable to wear. These lenses contain some amount of water and will cause deposits to accumulate.
(Deposits are foreign particles that adhere to the lens surface that can cause eye problems and eye irritations.)
- DISPOSABLE LENSES are actually soft lenses that can be disposed either every day, after a week, 2 weeks or a month. The best thing about them is that they can be replaced with a fresh pair so less worries about deposits accumulating.
- SEMI-HARD LENSES are also called rigid gas permeable lenses. These lenses are firm and made of silicone with other compounds. They allow oxygen to pass through. They may be less comfortable to wear but they can better withstand deposits since they contain little water and will not dehydrate.
- Other contact lens variations include:
- TORIC SOFT LENSES are a type of soft lens that corrects astigmatism.
- PLATEAU LENSES are for people who have undergone cornea transplants or surgery to correct short-sightedness (eg. Lasik). They are rigid gas permeable lenses.
- CUSTOM DESIGN LENSES are specially made to fit the cornea exactly. They can either be soft or rigid.
- Traditional hard lenses are no longer prescribed.
- Contact lenses are very safe to use provided proper care is taken.
- Wearing them could be uncomfortable for first-time wearers. It will take about a week or more to get used to them. If it is painful, it could indicate an improper fit.
Handling tips
- Wash hands clean when handling lenses.
- Besides cleaning the contact lens case regularly, remember to replace it as well. A good time to change to a new lens case is when you have just opened a brand new bottle of cleaning solution.
- Always close the cap of the cleaning solution. Leaving it open invites bacterial growth.
- Keep the cleaning solution somewhere cool and dark. Too hot or cold temperatures can affect its chemical content.
- No swimming with contact lenses.
- Never wear disposable lenses past their used-by dates. This is no time to be thrifty.
- Remove contact lenses when eyes are sore, red, itchy, tearing excessively or tired. If symptoms persists, contact your optometrist.
- Never wear them overnight!
- When travelling on a plane, bring along eye drops to lubricate the eyes since air inside the aircraft is dry.
- Put on your lenses before applying makeup.
- Powder your face by dabbing gently. Close eyes when dabbing over the eye area.
- Try to use waterproof mascara and waterproof eyeliner.
- When applying eyeliner, line the edge of eye lid. Do not go any inner.
- Use a gentle, unscented and effective eye makeup remover. Clean thoroughly always.
- Close eyes when spraying hair spray or perfume and step away from the mist.
- Wear sunglasses with UV protection to protect eyes and prevent air particles from getting into the eyes.
- Do not wear contact lenses when using commerical household cleaners or sealants which may emit fumes containing ammonia that can be into absorbed by the lens.
- Do not wear lenses that are cracked or chipped off. Discard them immediately.
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