Ahlamontada 
من طرف الياسمين الأربعاء يناير 14, 2009 10:40 am ازياء للعين ومعلومات العدسات اللاصقه خاصتاً للبنات؟
باللغه الانجليزيه
What are contact lenses?
They are small, ultra thin lenses which make life much easier for a lot of people who originally wear eyeglasses. Contact lenses are light in weight, invisible & totally correct the field of vision unlike the eyeglasses by which you cant see clearly through its sides.
Contact lenses can correct vision problems like near-sightedness, far-sightedness, astigmatism & presbyopia which is the inability to focus during reading so they can now replace even bifocal glasses. Contact lenses are very safe & almost all people can wear them even children except those who have certain eye problems which prevent them from wearing contact lenses
Did you know that:
They are small, ultra thin lenses which make life much easier for a lot of people who originally wear eyeglasses. Contact lenses are light in weight, invisible & totally correct the field of vision unlike the eyeglasses by which you cant see clearly through its sides.Contact lenses can correct vision problems like near-sightedness, far-sightedness, astigmatism & presbyopia which is the inability to focus during reading so they can now replace even bifocal glasses. Contact lenses are very safe & almost all people can wear them even children except those who have certain eye problems which prevent them from wearing contact lenses
Did you know that:
- The German physiologist Adolf Fick was the first to successfully fit contact lenses which were made from brown glass in the year 1887.
- Modern contact lenses were invented by the Czech chemist Otto Wichterle.
Types of contact lenses:
There are two types of contact lenses available, soft & hard; most of the lenses used now are of the soft type which are available in many forms to provide maximum comfort & meet the customers needs.
There are two types of contact lenses available, soft & hard; most of the lenses used now are of the soft type which are available in many forms to provide maximum comfort & meet the customers needs.
- Spherical contact lenses:
These lenses correct basic vision problems like near-sightedness & far-sightedness & they represent the cheapest & most comfortable type of contact lenses available. - Contact lenses for astigmatism
toric)
These lenses are designed specially for correcting astigmatism & they are more expensive than spherical lenses. - Contact lenses for presbyopia:
Theyre used to correct the inability to focus sharply during reading which is usually age-related, they represent an alternative to wearing special glasses for reading. - Color (cosmetic) contact lenses:
They are regular lenses having a color within the lens that blends with your own natural eye color (without touching the eye), they maybe used only for cosmetic purposes with no corrective power at all (plano) or they may also have a corrective power.
Hard contact lenses Gas permeable lenses)
Theyre rarely used now as theyre less comfortable than soft contacts.
Types according to wear extent:
Gas permeable lenses)Theyre rarely used now as theyre less comfortable than soft contacts.
Types according to wear extent:
- Disposable lenses:
They are lenses which are used for a certain period of time then thrown away. The duration of those lenses varies according to the type of lens, they vary from daily, weekly, monthly but never exceed 3 months.
These lenses are preferred by most physicians since they allow a decrease in microbial growth , so theyre more suitable for eyes that secrete a lot of proteins which might affect the lens clarity. - Permanent lenses:
These lenses come in glass vials & can be used on a daily or weekly basis for up to 2 years. Theyre usually more expensive than disposable ones since they last for a longer time, but they might cause some problems like allergies or inflammation & thats because the same lens is used for a long time.
Did you know that?
- Some contact lenses now have a UV-light blocking feature as UV has been now linked to the formation of cataracts. However, these contacts arent meant to replace sunglasses because they only cover the cornea & not the entire eye.
- Cosmetic lenses are now available in many designs & colors even red! to be worn in parties & fit your costumes.
- There are certain types of lenses that can be worn continuously without removal even during sleep for up to 30 days!
- An Asian company developed a $120,000 contact lenses & the reason for this price is that its made of diamonds!
How to maintain healthy eyes:
5 items must be checked daily:
5 items must be checked daily:
- Redness:
Redness will only be noticed if you look at the mirror & compare between the 2 eyes, if one of them has a more intense red color then it must be checked as this might be a sign of inflammation. - Excessive secretions:
May sometimes be accompanied by pain or discomfort. - Photophobia:
Most new contact lens wearers experience photophobia at the beginning but, if it increases with time or if it was only felt in one of the 2 eyes, then you must have your eyes checked. - Discomfort:
The cause of discomfort maybe very simple as it might be due to the presence of dust specks under the lens but, if this sense of discomfort continues or increases with time therefore, you have to check your eyes. - Vision:
If you feel your vision has been affected by contact lenses ( i.e.weakened), then you have to visit your doctor.
How to Deal with Contact Lenses?Both hands have to be used in this process & it must be done in front of a mirror. How to wear contact lenses? Watch video
- Wash your hands & dry them thoroughly before touching the lenses.
- Before wearing the lens, make sure youre wearing it on the right side because if not, it will cause pain & blurring.
- Rinse the lens using Perfect Care contact lens solution.
- Use one hand to open the upper eyelid to reduce blinking.
- Place the wet, clean right lens on the tip of the index or middle finger of your dominant hand & pull down the lower lid with the middle finger of the same hand & use your other hand to hold the upper lid open.
- Look directly into the mirror & place the lens directly on the cornea.
- Slowly let go of your lid, close your eye & open it several times until vision becomes clear.
How to remove contact lenses? Watch video
- Look up towards the mirror, pull the lower eyelid downwards using the middle Finger then move the lens using the pointer towards the white part of the eye.
- Gently squeeze the lens between your thumb & index fingers & remove it. Dont forget to rinse your contacts using Perfect Care before placing them inside the lens case.
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