Center for Sight, Fall River, Massachusetts

October 21, 2019

Why NOT to Buy Eyewear or Glasses Online




Did you know that in Massachusetts the state regulates that eyewear is a medical device and by law it is required to be fit and dispensed (provided) by a qualified licensed Optician or a registered apprentice? On-line businesses do not follow this regulation, however they are permitted to provide eyewear because they are based outside of state and/or country lines. Your Optometrist or Ophthalmologist is required to provide you the needed binocular pupillary measurement, known as your PD.  However, this is a generic measurement that may not result in a pair of eyewear with optimal visual performance, especially if you wear progressive (no-line) lenses or have a difficult prescription.

 At Center for Sight there are several measurements and considerations we use when customizing a pair of eyeglasses that includes a monocular pupillary or visual center measurement (VCP), your visual needs, prescription, lens type, frame style, wrap angle, vertex distance, pantoscopic tilt, base curve, head and facial features, the intended use for your eyewear and previous eyewear worn. When fitting eyewear we also make precision adjustments so you are looking through the optical center of the lens.  Our Opticians also want your frame to fit properly so they do not slip on your nose, pinch the sides of your head, leave red marks or cause discomfort behind your ears or on your nose.  Any of these concerns may cause headaches and/or decreased vision.  The human face is not symmetrical left to right so using only your binocular PD will not place the pupils in the visual center of the lens and possibly cause distortion, unwanted prism and headaches. Taking this measurement yourself- as some online stores request you do is tricky-somewhat akin to trying to cut your own hair. To us, you are our patient, to them only a customer! 

If you or someone you know needs an eye exam, please schedule one at Center for Sight 508-730-2020, visit Center for Sight, Google or www.facebook.com/centerforsightfallriver  to schedule an appointment. 

Center for Sight is conveniently located at 1565 North Main Street, Suite 406, Fall River, Massachusetts 02720 for patients from Massachusetts or Rhode Island.