Presented by: Sabina HussainSantosh

KumarTehseen

JavaidBS Vision

Science (3rd Year )ISRA SCHOOL

OF OPTOMETRY

Contact Lens Care Solution & Extend Wear

o Clear vision ..o Comfort ..o Convenience ...o All good reasons why people choose to wear contact lens.o However, when you don’t follow good hygiene habits with

your contact lenses, you may experience discomfort and challenges with your contact lens wear.

o Don’t forget that contact lenses are medical devices! 

The Basics of Contact Lens Care:

o Clean, Rinse and Disinfecto Wash your hands so that you don't transfer dirt and germs to

your eye. Try to avoid moisturizing soaps, as they are not good for contact lenses. Dry your hands with a lint-free towel.

o Remove one lens and clean it with the recommended solution, cosmetics and other debris that impairs lens comfort.

o The FDA recommends that you rub the lens in the palm of your hand with a few drops of solution, even if you are using a "no-rub" product.

BANNDED

o Rinse the lens again to remove the loosened debris, making sure to take as long as the package directs: Rinsing is an important step.

o Place the lens in your clean lens case or lens holder and fill with fresh solution; don't "top off" your old solution. Disinfecting kills microorganisms on the lens. Disinfection time varies from product to product; check the package for details.

o Repeat steps two through four for your other lens.

Qualities of contact lens care system

o Effective against all likely ocular pathogenso Contaminating lens care products, CLs & lens caseso Non-toxic to ocular tissueso Compatible with all CLso Simple to use (makes non-compliance difficult)o Disinfects rapidlyo Prevents CL deposits

o Kills ALL viable organisms in: Lens case Solutions on CLs

o Removes ALL dead organisms skin lipids (from eyelids) tear, finger & air-borne contaminants cosmetic residues

o Non-toxico Suitable for all CLso Quick acting (to allow disinfection between brief uses)

Think all contact lens care solutions are the same? Wrong!

Contact lens solutions are designed for different purposes including cleaning, rinsing, disinfecting and storing.

Not all solutions do each of these things. Every contact lens solution is formulated differently to provide different benefits.

Be sure to discuss your contact lens solution options with your eye care professional to understand which types of solutions best meet your contact lens care needs.

The Basics of Contact Lens Solution

Types of contact lens care systems

Four types of contact lens care products:

o Multi-purpose contact lens solutionso Hydrogen peroxide-based care systemso Saline solutionso Daily cleaners

o Multipurpose solution is for cleaning, rinsing, disinfecting and

storing your contact lenses.

o Clean your lenses as you would with daily cleaner, then rinse (as long as directed) and disinfect, all with the same solution; or rinse the lenses twice, then place them in the clean lens case with solution to clean and disinfect. When you are ready to wear the lenses, rinse them again.

o With multipurpose solutions, no other lens care products are necessary.

o Multipurpose solutions also are called "no-rub" solutions.

Multipurpose Contact Lens solution

Hydrogen Peroxide-Based solutiono Cleaning, Disinfecting, Rinsing And Storing. o With this product, you place your lenses in the provided

basket and rinse them, then place the basket in its cup and fill the cup with solution to clean and disinfect your lenses.

o Some lens holders for hydrogen peroxide systems have a built-in neutralizer (to convert the hydrogen peroxide to water, so it doesn't sting your eyes), but with others you need to add a neutralizing tablet.

Lens disinfection with HPB lens care systems

o one-step

o two-step process

One-step HPB Systems:o The lenses are placed in a holder

within a cylindrical contact lens case.

o The case is filled with a 3% solution of hydrogen peroxide.

o The bottom of the case contains a solid disk of a material that immediately begins neutralizing the hydrogen peroxide.

Two-step systemso The contact lens are placed in a lens case

filled with only the hydrogen peroxide for a specified period of time

o A neutralizer is then added to the case to convert the disinfectant to harmless saline

Hydrogen peroxide-based solution disadvantage:

One-step HPB: May not expose contacts to full-strength

hydrogen peroxide for an adequate period of time

Two-step HPB : Users will forget the neutralizing step and

incur a painful eye injury

Saline Solutions

Saline solutions are mainly used for rinsing and storing contact lenses when you're using a heat or UV disinfection system. Saline solutions are not indicated or meant for disinfecting contacts.

Daily Cleaners

A daily cleaner is used to clean contact lenses prior to disinfection. Daily cleaners are not indicated or meant to disinfect contact lenses so you will be required to use additional products.3

Do’so Have regular check-ups as advised by your

practitioner.o Wash and dry your hands prior to handling your

lenses.o Rub, rinse and store your lenses in the recommended

solution before and after each.o Clean the lens case with solution, wipe with a clean

tissue then air-dry after each use.o Always apply the same lens first to avoid mixing them

up.

o Apply your lenses before putting on make-up..o Keep your eyes closed when using hairspray or other aerosols.o Replace your lens case at least monthly.o Discard lenses and solutions that are past their expiry date.o Wear only the lenses specified by your contact lens practitioner.o Ask yourself these three questions, each time you wear your lenses:

— Do my eyes feel good with my lenses? — no discomfort. — Do my eyes look good? — no redness. — Do I see well? — no blurring vision.

o If the answer to any of these questions is no, leave your lenses off and consult your contact lens practitioner immediately, who will advise you on what to do next.

Dont’so Use tap water, or any other water, on your lenseso Put a lens on the eye if it falls on the floor or other

surface.o Continue to wear your lenses if your eyes don’t feel

good, look good, or see well.o Re-use solution – discard and replace with fresh

solution each time lenses are stored.o Wear lenses left in the case for more than seven days

without cleaning and storing them in fresh solution.o Share contact lenses

o Sleep in your lenses unless specifically advised to by your practitioner.

o Use your lenses for swimming, showering, unless wearing goggles.

o Use any eye drops without advice from your contact lens practitioner.

o Remember that if you have any questions about your contact lenses you should consult your BCLA contact lens practitioner for advice.

Extend Wear Lenses

o Extend wear lenses became widely used in 1970.o Extend wear lenses are very thin and high water

content.o Extend wear lenses are advanced soft lenses.o Extend wear (continues wear, day & night wear)o Most extend wear lenses are thinner than daily wearo Made of silicone hydrogel.o Allowing more oxygen to reach the cornea

Extend Wear Lenseso Today Extend wear lenses are into for approve 30 dayso Also available in RGP.o Extend wear is still controversial in ophthalmic communityo Microorganism can adhere to the lens maybe red eye,

infectious such as fungal keratits, acanthamoeba o Reduce oxygen supply to cornea because eyelid are closed

during sleep can cause lose of vision