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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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REOPENING INFORMATION

We are pleased to inform you that we will be re-opening for all your vision and eye health care needs on May 15 on LI and May 18 in NYC.

All necessary precautions to protect your safety and the safety of our dedicated staff are being taken. All disinfection procedures are being performed frequently and to the strictest standards.

Personal protective measures will be in place. To that end we kindly request your adherence to the following protocols:

  1. Please wear a face covering to your appointment
  2. Do not bring anyone with you into the office (drivers should wait outside or in the car.) Exceptions will be made on a limited basis; please inform us of your needs in advance.
  3. Non-contact thermometers will be used to check temperatures of all who enter.

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