Let me go through your questions in order:
1. After a complete eye exam and refraction
a contact lens brand/style is selected from stock that should fit the anatomy of your eye well and correct your refractive error. A sample lens of this type is placed on your eye and, using the slit lamp and sometimes special stains the fit of the contact is evaluated. If it looks good, you are usually given the free lens to try. If it works after a week or so a Rx or supply of that lens is dispensed.
2. Your eye doctor has training to select the lens, or a few lens types, that will work best for you. This way you do not need to try every lens on the market :)
3. No. It would be impossible to stock that many lenses
. Every eye doctor carries a cross section of lens types so as to be able to fit the vast majority of patients. If a different lens is needed, every type made is available with a simple phone call.
4. Not sure what you mean by this. Your contact, no matter what the brand, should easily stay in place during activities like running. No special testing/fitting is needed.
5. Since the fit of every lens is different and a poor fit can cause serious eye problems like a corneal ulcer
(which may cause blindness
) every Rx has to be specific for the lens that was fit to your eye in the office.
6. Yes. This is very common and is called monovision
Whew! That was a lot of questions all rolled up into one thread :)
Is there anything else you would like to discuss at this point or have all your questions been answered to your satisfaction?
I hope this information was helpful for you. But I do work for tips so I want to make sure you are happy with me before rating me. If you have another question on this or a related issue feel free to fire away. You may also receive an email survey after our chat, if you don’t feel that I have earned a “10” rating in all areas, please let me know what I can do to meet your expectations.
Thanks in advance,
Dr. Rick MD FACS