How to prepare for an eye examination

Prepare for an eye examination

1. Refrain from wearing contact lenses before the examination, for the following duration of time:

  • Refrain from wearing contact lenses before the examination, for the following duration of time:
  • RGP and hard lenses: At least 14 days before the pre-examination
  • During this period, the person should wear spectacles instead.

Why must contact lenses be refrained before examination? Contact lenses come into direct contact with the cornea. After a long period of wearing, the shape of the cornea may adjust to fit the contact lens, and time is needed for it to get back to its natural shape. By not allowing enough time for the eye to readjust itself, the examination readings may not be accurate. In occasional cases, your surgeon may ask that you continue being off the contact lenses and repeat measurements will be performed at a later date to ensure stability.

2. Please be aware that certain medications need to be discontinued for a significant period of time before the examination and surgery.

  • Acne medications such as, Roaccutane, Acnotin, Isotret etc. need to be discontinued at least one month before an eye examination.
  • Please inform the doctor upon the eye examination if taking medications for diabetes, hypertension, cholesterol, thyroid and all kinds of sleeping pill.

3. Please note that the doctor who conducts the examination will be your surgeon. If you have preferred doctor, please specify

4. The preoperative eye examination will take approximately 3-4 hours from the appointment time.

5. Steps in the pre-examination:

  • Registration
  • A detailed multi-media presentation about LASIK (necessary information for each patient to better understand LASIK)
  • Eye measurements by technical machines
  • Measurement of refractive error twice, before and after dilating your pupils
  • Dilation
  • Eye Health Examination by doctor


6. The doctor specifies whether or not you will be a candidate

7. The dilation eye drops (Mydriacyl with Tropicamide 1.0%) will affect vision for 4-6 hours. Moreover, the following symptoms may occur as a result:

  • Blurry vision
  • Difficulties in seeing up close (people with a low amount of near-sightedness can remove their glasses to see up close)
  • Inability to endure bright lights which can be remedied by wearing sunglasses
  • Dizziness

Please note that it is recommended that you have someone else drive you to TRSC and back.