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Visual Acuity

This on-screen test will provide an estimate of your current vision.
This information can help our team better assess your eye condition.


This test can be done on a computer or smartphone screen. Make sure the brightness level on you your screen is high (set to 100% brightness if using smartphone). Do the test with your glasses/Contacts on.

  • Centre the EYE CHART below on your screen, then set the screen 4 feet (1.2 m) away from your face.
  • Test one eye at a time, covering the other eye with your open hand.
  • Read to the lowest line you can.
  • The blue number on the right of the line is your vision for each eye (e.g. 20/30).

Record the number for each eye (e.g. 20/30) in the Visual Acuity section in your Patient Portal submission. Or, if a team member requested these numbers, send these numbers back specifying left and right eye measurements.

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*Use our secure online portal to refer your patients. It is easy to use, completely secure, and utilizes digital communications to update you on the status of all your referrals and allows you to have 2-way digital communication with NTEC/Prism. This same portal keeps your patients updated on their appointments.

Contact Us

Our Services and Direct Contact

Main Line: 416-748-2020

General and Appointments:
Main Line or 416-748-4858 or

Cataract, Pterygium, Cornea Surgery:
Ext #308 or 320 or

Eyelid Surgery:
Ext #306 or

Ext #309 or

LASIK, Crosslinking, and Intacs:
Ext #319 or

Ext #305 or