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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!

ATTENTION:  EFFECTIVE IMMEDIATELY

The Murrysville office will remain closed for the time being. All services offered through the Greensburg office.

Due to recent recommendations of the CDC, we would like to offer the following check-in procedure:

Thank you for your understanding and help in keeping everyone healthy so we can continue to provide care to our patients.

Doctors and Staff at Eyecare Greengate

COVID-19 ADJUSTED OFFICE HOURS GREENSBURG:

WEDNESDAY 4/1/2020  12-4PM

THURSDAY 4/2/2020 12-4PM

FRIDAY 4/3/2020 11-1PM

SATURDAY 4/4/2020 CLOSED

SUNDAY 4/5/2020 CLOSED

MONDAY 4/6/2020 11-3PM

TUESDAY 4/7/2020 11-3PM

WEDNESDAY 4/8/2020 11-3PM

THURSDAY 4/9/2020 11-3PM

FRIDAY 4/10/2020 CLOSED

SATURDAY 4/11/2020 CLOSED

SUNDAY 4/12/2020 CLOSED

If you are having an emergency, call 724-836-0802 and hit option 5

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The Murrysville office will remain closed until further notice. All services offered through the Greensburg office.

If you are having an emergency, call 724-836-0802 and hit option 5.

Due to recent recommendations of the CDC, we would like to offer the following check-in procedure: