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Phoropter

If, during an eye examination, your doctor has discovered a vision problem like nearsightedness, farsightedness or astigmatism, it’s likely that one of the next steps you’ll take will involve a phoropter. A phoropter is special machine used to switch multiple lenses in front of your eyes to correct your vision.

Phoropters look imposing—like space-age visors—but are really an ingenious way to quickly determine the exact vision correction needed by your individual eyes.

By having you look through the phoropter at a visual reference, image, or the “Big E” chart (the Snellen chart), your eye doctor will help guide you toward lenses that correct your vision impairment by switching lenses within the machine on the fly.

How does a phoropter work?

The process of switching lenses in front of your eyes is less involved than it may look, given the imposing nature of the device. A phoropter is used to manually determine “refraction”—exactly how a lens must be shaped and curved to correct your vision to a normal state, nothing more.

Phoropters are subjective however, based on your visual perception and response to your eye doctor’s questions. Is your vision better, or worse? With this lens, or this lens? How about now?

There are other procedures and technologies available that automatically measure the refraction needed within your eye and produce a “prescription” measurement without your input. These are called autorefractors and aberrometers.

 

Special thanks to the EyeGlass Guide, for informational material that aided in the creation of this website. Visit the EyeGlass Guide today!

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Dear Valued Patient,

At Premier Vision Care Optometry, the health and safety of our patients and employees are our top concern.

Due to the CDC recommendation to postpone routine eye care visits, our office will only be seeing patients deemed essential and urgent as of March 18th for the next 14 days (this is subject to change). Please call our office for further details regarding scheduling essential and urgent appointments.

If you are in urgent need of contact lenses during this time. Please call our office with your order details and we will be happy to ship lenses to you with no additional shipping costs to you.

As a reminder, if you have fallen ill, have traveled abroad, or had close contact with someone who has traveled abroad within the past 30 days and are due to be seen for an appointment, please let our office know. We will be happy to change your appointment to ensure the safety of our patients and staff.

Thank you for your cooperation and understanding during this unprecedented time.

Kent J. Nozaki, O.D.

Calista Ming, O.D., F.A.A.O., F.S.L.S.