The Net’s Most Wanteds

If you want to get hold of discount eyeglasses on line then make sure you understand one or two essentials before you start. It is true that you are now uniquely able to dramatically reduce how much you have to spend if you acknowledge how to buy your specs wisely and it they will be perfectly unhazardous for you to utilise as long as you become conscious of a few simple rules

Make certain that your new spectacles will fit well

If your current spectacles fit ok, then take your time in measuring your old glasses and you must have perfectly fitting new eyeglasses online.

You need to recognise 4 measures:

total width – a the lens Height – b the lens Breadth – c nose/bridge Width – “D”

A – total width – is the most important thing to measure accurately. You can get your new online glasses to fit perfectly well as long as long as you have the total width, even if you get the lens height or width slightly wrong.

Ensure that you have the exact lens prescription

There are but 4 parameters of your eye prescription that you will need to make a note of:

1. Sphere – This refers to how short or long sighted you are. This value specifies the optical power of a lens in diopters. It invariably has a positive (+) or a negative (-) symbol in front or above it.
2. Axis – this relates to the reference point which denotes the direction of the power of your lens. It only really applies if you have cylindrical lens though.. The value will be a number between 1 and 180.
3. Cylinder – This is the measure for astigmatism. Once Again, there is invariably a plus (+) or minus (-) sign present. There may not be a value of cylinder in your prescription.
4. Pupillary Distance (PD) – This part of your prescription helps to centre the lens within your frame on your face. The interpupillary distance refers to the PD. It is fairly easy to measure.