$29 for Eye Exam or Contacts Fitting & $200 Toward Prescription Glasses or Sunglasses at Z Optical ($250 Value)

New Dorp

23 Ratings

$29
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$250 88% $221
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In a Nutshell

Eye doctors check for eye conditions and write prescriptions before patients pick out frames and techs fit them with lenses

The Fine Print

Promotional value expires 90 days after purchase. Amount paid never expires. New Clients Only. Limit 1 per person, may buy 1 additional as a gift. Appointment required. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). Consultation required; non-candidates and other refund requests will be honored before service provided. Not valid with insurance. $35 fee applies to first time contact-lens wearers. Credit cannot be applied towards contact lenses. Does not include rigid, hard, or toric contact lenses. Cannot be combined with any other offers. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

The Deal

  • $29 for an eye exam or contact lens fitting and $200 toward complete prescription glasses or sunglasses ($250 value)

20/20 Vision: An Imperfect Ratio

The included eye exam will determine your visual acuity, which compares your vision to the 20/20 standard. Read on to find out what this metric really means.

Possessing 20/20 vision may be considered perfect, a level of visual acuity reserved for Navy pilots and the bald eagles that train them, but in fact it’s not even close to average. Developed by Dutch optometrist Hermann Snellen in the 1860s, the 20/20 standard is a somewhat arbitrary distinction. After inventing his now-iconic eye chart—which consists of lines of standardized letters that get progressively smaller—Snellen also instituted the concept of a ratio to define the clarity of a patient’s vision. The denominator represents how many feet away a person of normal visual acuity could stand while still discerning the letters with the same level of clarity as the patient. In other words, 20/40 vision means the patient needs to stand 20 feet away to make out the same size letters as a person with standard vision can from 40 feet.

Because the 20/20 standard is arbitrary, many people actually have considerably better eyesight, represented by such ratios as 20/15 or 20/10. In fact, in the United States, the average visual acuity is sharper than 20/20 until about age 60 or 70, when people’s vision naturally starts to decline as their bangs finally grow past their eyes. Also, though it’s useful for determining basic shortcomings of vision, an eye chart can’t diagnose a proper glasses or contact prescription. To determine that, optometrists test many other factors, including depth perception, peripheral vision, x-ray vision, and focusing skills.

Customer Reviews

23 Ratings

my experience at z optical was amazing. Sergio was amazing and friendly and helped me pick out the best frames for a great price. very reasonable and understanding... Great guy. thank you very much I was very satisfied and happy with my choice.
XIOMARA R. · October 1, 2016
Sergio was really nice and funny. He helped picking the right frames and great price too. He def looks out for his customers.
Jo G. · September 27, 2016
Loved this place! Sergio and Anna helped my son pick out glasses that he loves at a reasonable price!!!
Christine D. · August 28, 2016
Merchant Location Map
  1. 1

    New Dorp

    278 New Dorp Ln.

    Staten Island, NY 10306

    +17186678800

    Get Directions

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