Contact lens examinations take longer and wish more tests than a quarterly eye exam. If you wish to try touch lenses you need to inform your eye care professional's office when you book the appointment so sufficient time can be reserved for the touch lens fitting. The mean exam takes about 90 minutes.
[b]Lens[/b]There are three main parts to your touch lens exam and fitting:
- Consultation
- Examination
- touch lens fitting and instruction
Consultation
When you first enter the office your eye doctor will ask a amount of questions about your lifestyle, current eye condition and touch lens preferences. These questions will help your eye doctor to decide if touch lenses are right for you and also what kind of touch lenses would be the best fit.
Examination
Next your eye doctor will accomplish a habit eye exam.
Your eye doctor will shine a light into your eyes in order to discover the eye buildings and how well your eye muscles function. A optical acuity test will be given to rate how well you can see the letters and numbers on a thorough eye chart. Drops may be put in your eyes and other basic tests performed to decide if you need corrective lenses and what your prescription impel would be.
Contact Lens Examination
The curvature, size and shape of your eyes are unique and so measurements need to be taken in order to decide the accurate fit for your touch lenses. If touch lenses are not fitted properly they can cause pain and even eye damage.
- The eye doctor will use an instrument called a keratometer (a type of digital camera) to part the curvature of your cornea. Normally you sit facing the instrument with your chin in a brace (so you can't move) while the keratometer photographs your eye. The measurements it takes are calculated mathematically to decide the accurate size and curve for your touch lenses. Someone else formula called corneal topography may be used to furnish accurate details of your eye to your eye doctor.
- Next your eyes pupil and iris size are measured using a ruler, pupil card or pupillometer.
- A biomicroscope will be used to evaluate the condition of your cornea and also to check the fit of your trial touch lenses.
- A tear film assessment may also be performed to check the moisture in your eye. This can be done by inserting a small strip of paper under the lower eyelid or by placing fluorescein dye in your eyes and looking how long it takes for your tears to remove it. This test determines if you have issues with dry eye. If you have severe dry eye you may not be able to wear touch lenses or you may need special touch lenses.
Contact Lens Fitting and Instructions
Finally after your tests are complete, trial contact lenses will be fitted. You will need to wait 10-15 minutes for your eyes to decide down before the eye doctor can decide if the fit is correct. You may also need to try on more than one pair before you find just the right ones for you.
During the fitting your eye doctor will teach you how to insert and remove your touch lenses. They will discuss permissible cleaning and maintenance routines and will give you written instructions to corollary when you get home.
Follow-up exams will be scheduled to check on your expand with your new touch lenses. If you notice any vision changes, pain or problems you should touch your eye care professional immediately.
feel Lens Examinations - What You Need to Know
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