All Access To The Goodies

If you want to purchase discount glasses on line then you need to recognise a few things first. You can save a HUGE amount of money if you acknowledge how to buy your specs wisely and it they will be perfectly safe for you to utilise as long as you become mindful of a few simple rules

Make certain that your new spectacles will fit well

If your current specs fit o.k., then all you need to do is to measure them accurately and you will need to receive perfect fitting new glasses online.

You need to acknowledge four measurements:

total width - A Lens Height - b the Lens Breadth - “C” The Nose/Bridge Width - “D”

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

Ensure that you have the precise lens prescription

There are simply 4 parameters of your eye prescription that you will need to become aware of:

1. Sphere - This refers to how short or long sighted you are. It is a measure of your lens optical power and is measured in diopters. It invariably will have a positive (+) or a negative (-) sign in front or above it.
2. Axis - you will only get this if there is actually a value for the cylinder. It really is to do with the point that indicates the dirction in which the power of your cylindrical lens. It will be a number between 1 and 180.
3. Cylinder - Astigmatism is measured using this value. Once Again, there is always a plus (+) or minus (-) sign around. There may not be a value of cylinder in your prescription.
4. Pupillary Distance (PD) - This measurement is used to accurately center the lenses in the frame that you have selected. PD is the distance from the center of the pupil (black circle) in one eye to the center of the pupil in the other eye.