Lenses

GEEK Eyewear® Lenses:
 

  • DEMO LENSES are designed to simulate lenses showing what the frame will look like with lenses. Demo lenses are not for daily use in your eyewear. You can order RX lenses from our on-line shop or take your GEEK EYEWEAR® with demo lenses to any optical shop to have your prescription installed. Demo Lens material: Acrylic.

     
  • NO-PRESCRIPTION      

    1. Wear Your Geeks For FASHION - Ready-To-Wear (RTW) Fashion Eyewear
    Lens Material: CR-39 Clear Lenses (NO EXTRA CHARGE). Index of normal CR-39 lenses is 1.49. 
    The most common type of lenses used in the eye care industry worldwide. CR-39’s impact resistance is greater than glass but CR-39 should not be considered for active lifestyles where impacts are prevalent such as playing sports and motorcycle riding for example. 

  • 2. Blue Filter Clear Lenses (Non Rx) +$25 for lenses. If you want RX lenses, please select Rx Blue Filter. 2-4 business days for RX orders. 
    Material: Polycarbonate lenses.

    * PROTECTS AGAINST HARMFUL BLUE LIGHT (blocks 38% of light in the blue-light wavelength range. Thus reflecting the harmful blue light away from the eyes, while ensuring that the portion of blue light needed for optimal contrast and other health benefits is allowed to pass through the lens). 

    * PROTECTS AGAINST UV RADIATION TRANSMISSION

    * PREMIUM HYDROPHOBIC ANTI-REFLECTIVE (Water Repellent, Oil Resistant, Dust & Smudge Resistant, Anti-Glare).

    Blue Filter lenses provide 100% UV protection (400nm) and filter high-energy blue light in a crystal clear, everyday polycarbonate lens. Filtering properties are built into the lens, not a coating.

    An excellent upgrade for the health consumer looking to protect and maintain eye health, Blue Filter lenses filter over 3x more blue light than standard polycarbonate lenses at 420nm.  51% of high-energy light between 380 and 460nm. And because they’re especially vulnerable, often in-and-outdoors with just a single pair solution, children can benefit most as 70% more high energy light reaches a child’s retina.

    It is the only clear lens in the industry to carry the Skin Cancer Foundation Seal of Approval – recommended as an effective UV filter for the eyes and surrounding skin.


    WEAR YOUR GEEK EYEWEAR GLASSES AS SUNGLASSES

    • Sunglasses CR-39 Lenses - NO-Prescription. Tinted Lenses (wide color options are available - Add $10).
      Tinting is another service we offer our customers that provides extra protection and can be used for cosmetic purposes to enhance and individualize one's eyewear. The tinting process allows us to transform any frame into sunglass, while providing the same 100% UV protection. Our labs are capable of matching or creating any color combination. 

    • Polarized Anti-Reflective (AR) Sunglasses are the best-in-class non-prescription polarized lenses. Offered in GREY to provide superior glare reduction and UV protection. (Additional charge $25.00 per pair). 
       
  • PRESCRIPTION (RX) Lenses Note: We do not make Rx Progressive or Bifocals. RX SINGLE VISION ONLY.

    Single Vision Lenses – Simple Optical Correction

    This lens type has only one prescription that covers the whole lens. This means that they only offer one type of vision correction, helping people see better at shorter or farther distances, but never both.

    • Correct one field of vision
    • Perfect for short- or long-sighted wearers

  • Please include your PD with your order (this can be found on your RX. If it's not on your prescription, please ask your doctor). Your PD is the distance in millimeters between your pupils, and helps us center your prescription correctly in your frames. 

    Polycarbonate Anti-Reflective (AR). Index 1.58
    • This is the most impact resistant material on the market. Polycarbonate lenses are impact-resistant and offer 100% UV protection.
      (Add $25).
      In an addition, our polycarbonate lenses are supplied with an anti-reflective coating, at no additional charge.

      Polycarbonate was developed in the 1970s for aerospace applications, and is currently used for the helmet visors of astronauts and for space shuttle windshields. Eyeglass lenses made of polycarbonate were introduced in the early 1980s in response to a demand for lightweight, impact-resistant lenses. 

      Since then, polycarbonate lenses have become the standard for safety glasses, sports goggles and children's eyewear. Because they are less likely to fracture than regular plastic lenses, polycarbonate lenses also are a good choice for rimless eyewear designs where the lenses are attached to the frame components with drill mountings. 

      Regular eyeglass frames are not rated for use as safety glasses and typically don't provide the type of eye protection needed for sports. Therefore, playing sports while wearing an eyeglass frame that is not rated for sports eyewear is dangerous and can result in a serious eye injury if the frame breaks, dislodging the lenses. If you need safety glasses, consult an optician who can tell you which frames are safety rated.

    • Transitions® Signature™ VII with Chromea7™ technology (released in January, 2014) which means the lenses are more reactive to indirect sunlight and even get darker on hot days. When going inside the lenses quickly become fully clear like a regular lens. 

      Available in Grey and Brown:       neutral, true-to-life color and the brown is the best everyday, contrast-enhancing lens. 

      Transitions Signature VII lenses are appropriate for lens wearers who spend a typical amount of time indoors versus outdoors. These patients are most likely to be clear lens wearers, and what interests them is the comfort that an adaptive lens provides. Emphasize the indoor clarity of the lenses and the superior visual experience they provide. 

      Transitions Signature lenses with an anti- reflective treatment are ideal for patients looking for the best possible vision indoors and outdoors, day and night. 


  • CR-39 Sunglass Lenses. Index of normal CR-39 lenses is 1.49. Tinted. Please select the color (Add $10).
    Tinting is another service we offer our customers that provides extra protection and can be used for cosmetic purposes to enhance and individualize one's eyewear. The tinting process allows us to transform any sunglass into a prescription frame and any prescription frame into a sunglass, while providing the same 100% UV protection. Our labs are capable of matching or creating any color combination. Choosing a color or style of tint could be overwhelming, that is why our eyewear specialists are available and ready to help navigate you through this process.


    Rx Blue Filter Clear Lenses (add $65, only with a purchase of Geek Eyewear on-line)

    Polycarbonate lenses are available from +4.00 to -8.00 spheres out to -2.00 cylinder. Blue Filter lenses provide 100% UV protection (400nm) and filter high-energy blue light in a crystal clear, everyday polycarbonate lens. Filtering properties are built into the lens, not a coating. An excellent upgrade for the health consumer looking to protect and maintain eye health, Blue Filter lenses filter over 3x more blue light than standard polycarbonate lenses at 420nm.  51% of high-energy light between 380 and 460nm. And because they’re especially vulnerable, often in-and-outdoors with just a single pair solution, children can benefit most as 70% more high energy light reaches a child’s retina. It is the only clear lens in the industry to carry the Skin Cancer Foundation Seal of Approval – recommended as an effective UV filter for the eyes and surrounding skin.

    * PROTECTS AGAINST HARMFUL BLUE LIGHT (blocks 38% of light in the blue-light wavelength range. Thus reflecting the harmful blue light away from the eyes, while ensuring that the portion of blue light needed for optimal contrast and other health benefits is allowed to pass through the lens). 

    * PROTECTS AGAINST UV RADIATION TRANSMISSION

    * PREMIUM HYDROPHOBIC ANTI-REFLECTIVE (Water Repellent, Oil Resistant, Dust & Smudge Resistant, Anti-Glare).

     
    • High-Index Lenses 1.74 (add $65 only with a purchase of Geek Eyewear on-line)

    • High-index eyeglass lenses are the right choice if you want thinner, lighter lenses. Thinner, lighter high-index lenses are especially recommended if you have a extremely high eyeglass prescription for nearsightedness, farsightedness or astigmatism. They reduce eye distortion caused by strong prescriptions. 

    • Scratch Resistant of Lens Surface.

    • Over 99% transmittance of visible light reduce the eyestrain.

    • Water repellent with hydrophobic surface.

  • READING GLASSES

    To magnify and make reading easier. Index of normal CR-39 lenses is 1.49. Does not correct for other eye conditions like astigmatism.
    CR-39 Lens Material:  (Add $10).

    Interesting fact from the data by the VisionSpring team shows that reading glasses has the potential to increase monthly income by 20%. Wow!


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    Source: http://visionspring.org/why-eyeglasses/

    What is my PD?

    (also called Pupillary Distance, Inter-Pupillary Distance or Pupil Distance)

     

    PD is the distance between the centre of one pupil to the centre of the other pupil. Prescription glasses are made so that the distance between the optical centres of the glasses' lenses, is the same as your PD. PD varies from person to person but once you are an adult, your PD does not change. Therefore, as an adult, if you have had it measured, then it will still be the same, even if your spectacle prescription has changed. Once you know your PD, you do not need to measure it every time you buy prescription glasses.

    PD is measured either during the eye test or when prescription glasses are ordered. Obviously we cannot measure your PD over the internet, so it is best to make sure your PD is included in your glasses prescription.

    The Diagram below represents a PD of 62mm.

    PD measurement diagram

    If your prescription does not contain your PD:

    • Ask to have it measured at an optical shop – some may charge a fee. 
    • Contact an optical shop where you have previously purchased prescription glasses. Your PD has been measured if you have ever had prescription glasses made up.
    • Your previous optometrist may have a record of your PD.
    • Alternatively, try measuring your own Pupillary Distance as explained below. (Note: Measuring your own PD may not be as accurate as having a trained person do it. If your head or the ruler moves during the measurement then the reading will be inaccurate)

    The higher the lens power in the glasses prescription, the more important it is to use an accurate PD. These procedures may not work for everyone. We recommend that you obtain a professional measurement of PD whenever possible.

    Measuring your own PD (Pupillary Distance):

     

    TIP: This should be done with glasses off, if the numbers on a ruler are difficult to see, then a magnifying mirror may help.

    1. Whilst looking into a mirror hold a ruler against the bridge of the nose with one hand.

    2. Close your left eye, and line the '0' up with the centre of the pupil of your right eye as shown in the diagram.

    PD - Line up pupil with zero.

    3. Without moving your head or the ruler open the left eye and close the right eye. Read the number that lines up with the centre of the pupil of the left eye. This number represents your Distance PD in millimetres. You have just used this technique to measure your distance PD.

    PD Read number from ruler.

    4. Repeat this whole process at least 3 times to try and get a consistent measurement in millimetres. Make sure your head and the ruler do not move after lining up the zero on the ruler until you take the reading. This procedure may be difficult if one eye has very poor vision compared to the other eye.

    When you enter your Pupillary Distance (PD) details on the Stingy Specs glasses prescription form, enter the number you have just measured – this is your ‘distance PD.’ You then need to enter your ‘near PD’ which is calculated as 3mm less than the distance PD.

    e.g. Distance PD = 60
    Near PD= 60 – 3 = 57

    Sometimes the centre of the pupil is difficult to see. Instead of lining up the ruler with the centre of the pupil, it is more precise to use the edge of the pupil as shown at the bottom of the page; (be careful to use the inside edge of one pupil and the outside edge of the other pupil.)

    Getting a Friend to Measure Your PD:

    This technique uses a second person to measure your Pupillary Distance (PD).

    1. Both of you should be sitting down approximately 45cm apart. The person having their PD measured keeps both eyes open. When your friend is taking the measurement, they must keep one eye closed.

    Measuring PD

    2. The ruler is held against the forehead as shown above. The person having the PD measured looks into the open eye of the person taking the measurement.

    The “0” is lined up with the centre of one pupil. Record the number lining up with the centre of the other pupil in millimetres. This is the measurement for the “near PD”. Neither person should move their head during this procedure. This procedure will not work if the person having their PD measured has a turned eye. You have just used this technique to measure your near PD.

    When you enter your PD details on the Stingy Specs glasses prescription form, enter the number you have just measured into the “near PD” field. Enter your “distance PD” which is calculated by adding 3mm to the “near PD.” (This rule is accurate for most people).

    Eg Near PD= 57
    Distance PD= 57 + 3= 60

    Instead of using the centre of the pupils, you can use the edge of the pupils as shown below. (be careful to use inside edge of one pupil and outside edge of the other pupil.)

    PD diagram using edges of pupils

     

    Please note that when you measure your own PD by using these techniques you may not get the same result as an experienced professional. We recommend that you use the measurements taken by an optometrist or an optical dispenser whenever possible. This page is provided for information purposes only. We do not take responsibility for the accuracy of measurements taken by people referring to this information. Please note that professional optical dispensers and optometrists may use different techniques to measure your PD.
    Source:http://www.stingyspecs.com.au/what-is-PD.html

     

  • FREE GEEK CHIC 5-PC. GIFT with Any Purchase (Available ONLY ONLINE)

    • A SUPER COOL GEEK CHIC CASE
    • FREE SHIPPING IN THE UNITED STATES BY FEDEX 2day DELIVERY
    • 100% OPHTHALMIC QUALITY CLEAR CR-39 LENSES (ZERO POWER)
    • TRENDY EYE SLEEPING MASK (while supplies last)
    • SUPER GEEKY MICRO-FIBER CLEANING CLOTH



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