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Home » News » Contact Lens Eye Exams, Dr. Christopher Coker – EyeCare About Vegas, Las Vegas, NV

Contact Lens Eye Exams, Dr. Christopher Coker – EyeCare About Vegas, Las Vegas, NV

Your Contact Lens Fitting

A good relationship between our patients and our eye doctors, Dr. Christopher Coker, is essential to helping you achieve comfortable, quality vision with contact lenses. We want to hear about your lifestyle and visual expectations. Do you like the idea of daily disposable lenses, or would you prefer lenses that are replaced less frequently or can be worn overnight? Are you seeking a new eye color? Soft lenses are more popular nowadays, yet hard gas permeable lenses (GP) have certain benefits. We’ll explain the pros and cons of the different contact lenses available.

If you need bifocals, we’ll discuss the option of multifocal contacts with you. An alternative method is called “monovision”, which refers to using one lens for distance vision and the other for close vision. We’ll take the time to consider what’s best for your unique needs and preferences.

Measuring for Contact Lenses

Just as there’s a full spectrum of clothing sizes out there, contact lenses also come in a variety of sizes. The curvature of your eyeball must be assessed; some eyes have a steep curve, while others are flatter. If your contact lenses don’t sit right on your eyeball, irritation – and possibly damage to your eye - will result. Dr. Christopher Coker is experienced and skilled at measuring eyes to fit contact lenses, and the following measurements will be taken in our Las Vegas, Nevada, office:

  • Corneal curvature: With the help of a keratometer, we’ll assess your cornea to find the best curve and diameter for your contacts. This measurement is very useful when fitting contacts on patients with astigmatism. When necessary, corneal topography mapping may also be used to provide more detailed, precise images of the eye's’ surface.
  • Pupil and iris size: These measurements, taken with a template card, ruler or biomicroscope, are important for deciding the perfect contact lens design to match your eyes, especially if you will be wearing GP lenses.
  • Evaluation of tear film: An adequate amount of moisture is needed in your eyes in order to wear contacts comfortably. It’s critical that your lenses and your cornea are well hydrated. We’ll assess your tear film by placing a thin strip of paper gently on your lower eyelid, or we may examine your eyes with a slit lamp. The amount of natural moisture present in your eyes will help us to prescribe the best lens material for you.

Dr. Christopher Coker

Dr. Christopher Coker

We’ll fit you with the perfect pair of lenses for clear and healthy vision! Las Vegas Eye Doctor.

Call (702) 508-7058 to make an appointment

Trial Lenses

Trying out lenses is often the most efficient way to assess the fit. We’ll insert a trial pair and examine how they sit on your eye when you look in different directions and blink. Your feedback about how the lenses feel, especially after you wear them for at least 15 minutes, is also significant. If the trial contacts are appropriate, then we’ll be able to provide you with a prescription. Before you take your new lenses home, we’ll instruct you on how to wear them, care for them and handle them properly!

Your Contact Lens Prescription

Our eye doctor will issue your contact lens prescription, which includes the following: power of the lenses, lens diameter, base curve and the brand name manufacturer of the lenses. Additional specifications may be necessary if you’ll be wearing hard, GP lenses.


If you’d like to start wearing contact lenses,or if it’s time for your follow-up contact lens eye exam,contact us at EyeCare About Vegas. We look forward to helping you!


Follow-up Exams

We strongly encourage follow-up visits to our Las Vegas, Nevada, office, so that we can ensure your lenses fit well and your eyes are healthy. Our contact lens eye exams can detect signs of a problem or complication before you experience any symptoms. If we diagnose any type of problem, we may prescribe different lenses or advise you on a different wearing time. Annual routine exams are advised.

Please don't forget to make an appointment to see our Eye Care Specialist


Follow EyeCare About Vegas


Dear Valued Patient,

We are reaching out to inform all of our patients that during this COVID-19 closure our office is remaining open on an appointment-only basis, meaning our doors will be closed except for scheduled eye emergencies or urgent visual or eye health needs. We are focused on addressing possible infections that could potentially become more severe over the next few weeks. The greater purpose is to alleviate any potential burden on hospital emergency rooms that would be caused by patients seeking attention for eye health needs. However, if you are in need of glasses or contacts in order to perform your necessary day-to-day functions we will also do our best to address your needs. We are following the CDC guidelines for treating patients in our office during this outbreak. We understand that these are unprecedented times, but we want you to know that we are here for you in the case that you have a true eye emergency or urgent need. If you are unsure if your case would constituent as urgent, please call our office and we would be glad to answer any questions or concerns that you may have and advise you as to a course of action.

Best regards,

Christopher Coker, OD