Before you can buy contact lenses, or specs either for that matter, you will have to submit yourself to an eye test. However, the eye test for contact lenses is a bit more detailed than a test for regular specs, so you ought to tell the optometrist which type of lens you prefer before the test begins in order to save time.
An eye test will normally start with a physical examination of your eyes for signs of eye disease such as cataracts and glaucoma or general problems such as high blood pressure or diabetes. This is why it is so important to have an eye test at least every two years, because a physician does not give routine checks for cataracts, diabetes or glaucoma, the three of which can turn you blind.
Your optometrist might pose other questions too such as why you would prefer to have contact lenses rather than specs and whether you have had any trouble with your eyes. The decision to wear contact lenses or glasses is entirely yours, although in some countries glasses may be free whereas there may be a charge for contact lenses because they are more expensive.
The results of the optometrist's test will yield a set of numbers which will tell an optician the strength of the lens required for each eye as the lens required for each eye is normally different. This is commonly referred to as your prescription. Then you take this prescription to an optician to select your spectacle frames, if you are having spectacles, and to have your lenses made or and fitted.
In the case of glasses, lenses will either have to be cut or and adjusted for the frames that you want and in the case of contact lenses, you may have to have the lenses made. In either case, you may be lucky enough to walk out of the shop wearing your glasses or contacts or you may have to return in a few hours or even a couple days. No optician worth his salt will sell you expensive lenses without a prescription.
There is an clear important difference between spectacles and contact lenses - contacts have to come into contact with your eyeballs and not all eyeballs are exactly the same shape. Therefore, if you want contacts, the optometrist will have to measure the exact curvature or the exact contours of your eyes and this will be part of your prescription. Some eyes are naturally drier than others and this can affect the type of contact lenses that you ought to purchase.
Your optician will then often give you a pair of trial contact lenses and require you to return a couple of days later for further tests. You may have to wear several kinds of contacts before you find a kind or make that suits your particular eyes and sight.
Once you have contacts that appear to suit, you will have to follow the instructions and advice that comes with them and return for your check-ups when you are told to. These follow-ups are important to make sure that the contact lenses are not aggravating your eyes or causing more serious issues.
An eye test will normally start with a physical examination of your eyes for signs of eye disease such as cataracts and glaucoma or general problems such as high blood pressure or diabetes. This is why it is so important to have an eye test at least every two years, because a physician does not give routine checks for cataracts, diabetes or glaucoma, the three of which can turn you blind.
Your optometrist might pose other questions too such as why you would prefer to have contact lenses rather than specs and whether you have had any trouble with your eyes. The decision to wear contact lenses or glasses is entirely yours, although in some countries glasses may be free whereas there may be a charge for contact lenses because they are more expensive.
The results of the optometrist's test will yield a set of numbers which will tell an optician the strength of the lens required for each eye as the lens required for each eye is normally different. This is commonly referred to as your prescription. Then you take this prescription to an optician to select your spectacle frames, if you are having spectacles, and to have your lenses made or and fitted.
In the case of glasses, lenses will either have to be cut or and adjusted for the frames that you want and in the case of contact lenses, you may have to have the lenses made. In either case, you may be lucky enough to walk out of the shop wearing your glasses or contacts or you may have to return in a few hours or even a couple days. No optician worth his salt will sell you expensive lenses without a prescription.
There is an clear important difference between spectacles and contact lenses - contacts have to come into contact with your eyeballs and not all eyeballs are exactly the same shape. Therefore, if you want contacts, the optometrist will have to measure the exact curvature or the exact contours of your eyes and this will be part of your prescription. Some eyes are naturally drier than others and this can affect the type of contact lenses that you ought to purchase.
Your optician will then often give you a pair of trial contact lenses and require you to return a couple of days later for further tests. You may have to wear several kinds of contacts before you find a kind or make that suits your particular eyes and sight.
Once you have contacts that appear to suit, you will have to follow the instructions and advice that comes with them and return for your check-ups when you are told to. These follow-ups are important to make sure that the contact lenses are not aggravating your eyes or causing more serious issues.
About the Author:
Owen Jones, the writer of this article, writes on numerous subjects, but is at present concerned with wholesale first aid kits. If you have an interest in RC vehicles, please come over to our website now at First Aid Courses Online.
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