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Your Contact Lens Prescription (Rx)

“I decided to get [multi-focal] contacts to help me at work. I came to Clarkson and the staff was very friendly. They educated me on putting them in, taking them out, and caring for the lenses. The doctor helped tweak the prescription to fit my needs at work. Thank you, thank you!” – Sarah K.


A contact lens prescription is written by your Clarkson optometrist or ophthalmologist.  It specifies all the parameters your doctor has deemed necessary to construct and/or dispense corrective lenses. The parameters specified on contact lens prescriptions vary, but typically include the power to which each lens should be made in order to correct blurred vision due to refractive errors, including myopia, hyperopia, astigmatism, and presbyopia. It is typically determined using a phoropter asking the patient which lens is best and through the technique of retinoscopy. A contact lens prescription can be obtained only during a contact lens examination and fitting.


"Why is my contact lens prescription different from my eyeglasses prescription?"

A contact lens prescription is for the purchase of contact lenses only. This prescription is determined through additional testing by your Clarkson doctor, including exact measurements of shape, slope and contour of your corneas. The exact power of the prescription may vary from your eyeglasses prescription since a contact lens sits directly on your eye.


Clarkson Eyecare fitting fee

These measurements require added time from both your Clarkson doctor and the office staff to ensure your lenses are a perfect fit. The fitting fee is paid on the day of your initial contact lens exam, and includes the following:

  • One (1) pair of trial lenses at the time of your appointment*

  • The additional measurements performed by the doctor to fit your eyes with the proper contact lens material, brand and power

  • Instruction on insertion and removal for first time lens wearers

  • All contact lens follow-up appointments for 90 days after your contact lens fitting**

This fee varies based on a variety of factors, including whether you are a current contact lens wearer, a current or new Clarkson patient and the type of lens required. The final cost will be determined by the doctor at your appointment. This fee is not covered by insurance, though some insurance plans may provide a discount to you.


Finalizing my contact lens prescription

One to two weeks after your contact lens examination, you will return to the office for a follow-up appointment with your doctor. This gives you time to wear the lenses and decide whether or not they are the best option for your vision and lifestyle. The doctor will evaluate your contact lenses for fit and comfort, and check your vision again for prescription accuracy. Additional follow-up visits may be required and other lenses may be tried to make sure you have the best fit possible. All additional office visits and trial sets of lenses are covered under the contact lens fitting fee for 90 days from the original fitting.

When you and your doctor decide the lenses you are wearing are right for you, your contact lens order can then be placed and delivered to your door for no additional fee.

* Each office has trial contacts in-office but some trials may need to be special ordered. A substitute pair may be available while waiting for the trial to arrive. Ask your optician for details.

** Fitting fee covers all follow-up care and trial lenses for a period of 3 months. Another evaluation and fitting fee may be required following this period.