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How To Order Your Prescription Aviator Sunglasses Online

by John M. White |

Prescription Aviator Sunglasses

Ordering prescription aviator sunglasses online can often be difficult and confusing. For example, there are different lens materials you can choose from. The choice of lens materials will impact lens tint, eye protection, durability and impact protection. The lens material will also affect options such as scratch resistant or anti-reflective coatings.

Where To Start

The first thing you need is a current eyewear prescription that is less than one (1) year old. Get your eyes examined and make sure the optometrist give you your prescription. By law optometrists can not refuse to give you your prescription or insist that you purchase your glasses or sunglasses from them.

Your Eyeglass Prescription: It's Yours To Keep

Prescription Form For Prescription SunglassesYou do not need to worry that you can't get your prescription from the eye doctor because in 1980 the Federal Trade Commission passed the Prescription Release Rule which is law.
This rule requires eye doctors (both optometrists and ophthalmologists) to give patients a copy of their eyeglass prescription at the end of an eye exam.
Your eye doctor must give you a copy of the prescription whether or not you ask for it. Eye doctors may not condition the release of your prescription on your agreement to purchase eyeglasses from them and they can not charge you a fee to release your prescription. They also may not disclaim liability for the accuracy of the prescription if you purchase prescription eyewear elsewhere.

What You Need To Know

There are a few things you need to do prior to ordering a pair of prescription sunglasses online:

    Understand Your Prescription

    Eyeglass Prescripton FormThere are a few things you should know about your eyeglass prescription. The abbreviations "OD" and "OS" are the abbreviations for the Latin terms oculus dexter and oculs sinister. OD means the right eye and "OS" means the left eye. However, in some cases the prescription will use the abbreviations "RE" (right eye) and "LE" (left eye) instead. On your prescription form the information for the right eye (OD) comes before the information for the left eye (OS). Eye doctors write prescriptions in this way to avoid making errors because when they face you they see your right eye on the left first and your left eye on the right second.

    Other Terms Used In Your Eyeglass Prescription

    Sphere (SPH): This number correlates to the amount of lens power, measured in diopters, prescribed to correct nearsightedness or farsightedness. If the number for Sphere has a minus sign (-) then you are nearsighted; if the number for Sphere has a plus sign (+) or is not preceded by any sign you are farsighted. Cylinder (CYL):Eye Protractor For Measuring Cylinder for Eyeglass Prescriptions This is used to indicate the amount of lens power for astigmatism. When nothing appears in this column then you have little or no astigmatism. Pupillary Distance (PD): This number is the distance between the center of your pupils (the black dots in the middle of your eyes). An accurate PD measurement is critical if you are getting progressive lenses. PD is also important to make sure you have because it tells the lens provider where the center of your vision is.

    Single Vision, Bi-Focal and Progressive Lenses

    Single Vision Lenses

    Single Vision Lens The most common lenses are single vision lenses that have the same optical focal point or correction over the entire area of the lens. Single vision lenses correct for only one distance. If they correct for far distance then the person's eyes must be able quickly adjust to read and see objects close up without correction. This is because the human eye must change focus from distance to close up in 350 milliseconds or less in order to see things clearly up close. When the person's eyes cannot adjust quickly they may need a separate pair of single vision glasses for near distances, or else use a multi-focal lens

    Bi-Focal Lenses

    Bi-Focal Lenses Bi-focal lenses contain two lens powers which are typically separated by a thin line running horizontally across the lens. We usually recommend bi-focal lenses for adults over age 40 to compensate for presbyopia. In these cases, the bottom portion of the bifocal lens reduces the amount of focusing effort required to see near objects clearly.

    Progressive Lenses

    Progressive Lenses The progressive lenses will allow you to enjoy bifocal vision without the bifocal line look. These progressive lenses help increase edge-to-edge clarity and offer a full range of vision correction, from up-close objects to those in the distance. With progressive lenses there is no taking off one pair of glasses to put on another and no peering over the bifocals as your grandmother may have done. But progressive lenses require a great deal more accuracy in the prescription and should not be purchased online.

    Decide On The Lens Tint You Want

    Today there are many lens tints available to you. For the best result you will want a lens tint that allows 12-18% of visible light through to reach your eye. There are three basic lens tints for sunglasses:

      Neutral Gray Lenses

      Randolph Engineering Aviator Gray Replacement LensesNeutral gray will have a visible light transmission level of approximately 16%. In other words, the lens will allow approximately 16% of visible light to pass through the lens and reach your eyes. This should be dark enough to handle most glare. The advantage of neutral gray lenses is that they provide absolute true color reception. Time tested by U.S. Military Pilots and NASA Astronauts, neutral gray lenses allow all colors to come through naturally without any color distortion resulting in hours of comfort. The neutral gray lens tint is ideal for driving, flying airplanes and everyday use.

      AGX (American Gray G-15) Lenses

      Randolph Engineering Aviator AGX Replacement Lenses The American Gray lenses have a slight green tint which selectively filters the color spectrum to make the color transmittance curve of the lens closely resemble the curve of the eye. The eye's focusing system is largely keyed to the green wavelengths of the visual spectrum. Therefore, by adding a slight green tint to the lens your vision stays sharp longer, eye fatigue is eliminated and contrast is improved. Sunglasses with these lenses are excellent for driving, flying and bright glare reduction.

      Tan (Kontraster B-15) Lenses

      Randolph Engineering Aviator Tan Replacement Lenses The Tan lens tint works exceptionally well for anyone who needs eye protection and enhanced contrast on fog, snow, haze or overcast days. Tan lenses will cut off the transmittance of scattered blue light increasing contrast and visual acuity. Sometimes sunglasses with tan or yellow lenses are called "Blue Blockers" because the eliminate scattered blue light and increase contrast for improved visual acuity in fog, snow or low light days. We recommend pilots carry two (2) pairs of sunglasses with them at all times, one pair with neutral gray lenses and one pair with tan lenses.

      Polarized Lenses

      Polarized lenses may help eliminate a little more glare by getting rid of some of the reflected glare off water or other shiny flat surfaces, but there are disadvantages to polarized lenses as well. The disadvantage of polarized lenses is that they “black out” LCD (Liquid Crystal Displays) that are common in automobile speedometers, moving map displays and radios. Most sunglasses with photochromic lenses don’t work in cars because the glass windshield blocks the uv rays which cause the lenses to darken when struck with them. However, Serengeti sunglasses with Drivers Gradient lenses will work in cars. Serengeti amber colored Drivers lenses enhance colors, contrast while lightening and darkening for optimal light transmission in any driving condition. And their ability to relax eye muscles reduces eye stress and eye fatigue.

      Decide On The Frame You Want

      The last item you will need to choose is the frame that you want your new prescription lenses in. You can find a selection of Randolph prescription frames here!

      Order Your Prescription Sunglasses

      Now that you are armed with all of the information you need the last step is to order your prescription aviator sunglasses through Aviator-Sunglasses.net. It is a 3 part process:
        That's all there is to it! In 2-3 weeks you will receive your prescription aviator sunglasses.

        Important Note:

        Prescription lenses are made to your order and therefore do NOT come with our no hassle 100% money back guarantee!" If you have any questions don't hesitate to call us at 1 (866) 440-2461.

        by John White

        John White a/k/a JetAviator7 is an ATP pilot with an MBA in business who enjoys all things aviation and as an online entrepreneur loves providing exceptional products combined with exceptional personal service. Find out more about John on Google+

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