A Complete Consumer Guide for Prescription Glasses
A Complete Consumer Guide for Prescription Glasses

 

Ages ago, only a handful of people i.e. the famous or rich ones were able to get trendy prescription eyeglasses. Other people could not afford it so they had to make do with generic frames for the prescribed lenses. But now, anyone that has a valid prescription can customize frames to fit the lens.

The site http://www.payneglasses.com will enlighten you as a consumer, on how to select and maintain the perfect pair.

 

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How to read your eyeglass prescription?

 

The first step in reading your eyeglass prescription is to understand the meaning of some terms. Eye doctors i.e. optometrist write prescriptions in a certain way. The details for your left eye i.e. OS is often written after the one for your right eye – OD.

When they face you, they see your left eye on their right and your right eye on their left. The meaning of the common terms are listed below

Sphere (SPH)

 

Sphere is used to measure the lens power in diopters (D). It is the correction for farsightedness and nearsightedness. A negative number means you are nearsighted, while a positive number or number with no sign before it indicate you are farsighted.

Cylinder (CYL)

 

Cylinder is used to measure lens power and treat astigmatism. If the section is not filled by your eye doctor, it indicates that you need no or slight correction for astigmatism. A negative number means you need correction for nearsighted but a positive number means correction for farsighted.

Axis

 

Axis is specified with any number from 1 – 180. It describes the lens meridian with no cylinder power to fix astigmatism. Once cylinder power is included, cyl power must be included with the axis value. When written, x must be in front of the number.

Add or NV-ADD

 

Extra magnifying power is used to correct presbyopia and it’s added to the lower part of the multifocal lens. Though this number might not be preceded by a plus sign, it is always positive. The general range is from +0.75 to +3.00 D for both eyes.

Prism

 

Prism is used to fix position issues of the eye. It is measured in prism diopters (p.d.) and the number of prismatic power. It is often written in a fractional or metric unit. The direction of the prism is shown with the relative position of its thickest edge or base. This is abbreviated as BI = base in (toward the wearer’s nose); BD = base down; BU = base up; BO = base out (toward the wearer’s ear).

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Tips for choosing your perfect frame

 

Glasses can be classified as a medical device though people love a pair that is trendy and fashionable. When customizing, selecting frame shape and material type, you should always keep your optometrist’s prescription in mind.

High positive prescription lenses might result in a bug-eyed effect because the lenses are thinner at the edges and thickest at the midpoint. It is best to avoid bigger lenses that will result in distorted magnification. The opposite is the case with high negative prescription lenses. So, pick a shorter frame.

Rather than choosing any generic eyeglasses, instead you can define your style. A good rule of thumb is to select something that will contrast your facial features in order to create a balance.

For instance, square frames suit people with soft features and round faces. Meanwhile, square or angular faces will benefit from round frames. For a subtle look, it is advisable that people with a bottom-heavy face should stick with a top-heavy frame.

Read this for more information on choosing the right glasses for you.

The set of your facial features is more significant than the general shape of your face. You might consider adjusting height or width of your frame to match facial proportions.

Consider the position of your eyes between your temple and nose. The best fit is when your eyes close to the corner of the lens. Round frames will prevent narrow-set eyes from looking squinty and cross-eyed.

Another tip is to ensure there is little or no gap between your nose top and bridge of the frame. The width of the frame should be the same as the width of your face from ear to ear.

Finally, check for fit warning signs which will determine how comfortable it will be day in and day out. Ill-fitting trendy eyeglasses will have no value to you if it is not comfortable. It might even degrade your vision over time.

5 Ways to maintain your prescription glasses

 

Follow these tips to avoid scratching or damaging the eyeglass frames and lenses

1. Clean your hands to remove anything that might transfer to the lenses. Wash with dishwashing liquid and dry with a lint-free towel.

2. Apply dishwashing liquid to each lens and rinse with a gentle stream of lukewarm water to remove dust and debris. But don’t use hot water which might damage the lens coating.

3. Don’t forget to shake off the remaining water. Dry with a microfiber cloth.

4. Keep pre-moistened lens cleaning wipes handy for times when you need a quick cleaning.

5. Use a protective storage case to store the specs when you take them off.

 

In most situations, glasses are often the first thing noticed on a person’s face, they have a vital role in fashion. If possible, buy a fun or nice pair that will make you feel great.

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