Whether you want to buy an eyeglass as a choice or it is
prescribed by your eye specialist, it is always important that you get them at
fair prices. Paying more for less is not a good idea. It does not matter
whether you are prescription eyeglasses
from an online store or from nearby stores, a bit of knowledge
and idea can save a lot for you. So, in this article, you will get to know
prescription glasses buying guide.
Such glasses have specific lenses that overcome defects of
vision you may have. They also assist with defects like far and near
sightedness. As personal aspects are involved in such type of eyeglasses, so it
is really important that buyer chose a pair that meets need and also look
stylish at the same time. Selection of wrong pair of glasses may put strain on
eyes and may cause irreversible damage to your eyesight. If you want to buy them easily then there are
ample of online platforms where you can get prescription eyeglasses online in India. The site
offers best collections at suitable prices that may be tough to get anywhere
else on brick and mortar outlets.
In this buying guide, you will come across aspects for
consideration while purchasing a suitable pair of eyeglasses.
Before buying them, it is important to understand
prescription as they can only help in selection of correct lenses. On the
prescriptions, you will see headings with numerical values under them. Here is
a list of headings referring defects while numbers reflect defect strength or
needed lenses.
·
SPH (Sphere): It is the main part of
prescription and can be measured in .25 increases. This refers to lens strength
needed to rectify defects and return focus to normal level. If a sphere comes
in minus, it indicates near sightedness and if it comes in plus, it indicates
farsightedness.
·
CYL (Cylinder): In case any astigmatism
is found in eyes, CYL indicates them. Astigmatism develops blurred or distorted
vision, which occurs due to imperfect curved lens. It is not necessary that all
prescriptions have a cylinder and most of the time the astigmatism is present
in one eye only.
·
AXIS: It presents only when there is a
value in cylinder box. It reveals the exact location of astigmatism in the eye.
The measurement that comes in AXIS box helps in finding out which degree of
cylinder lens needed to put.
·
ADD: This is needed in the lens for
reading purpose. This is used for reading purpose, bifocal and varifocal
glasses. The ADD also indicates how much power or you can say extra strength is
needed in glass for SPH, CYL and AXIS. It will be same in both eyes, whether it
is prescribed by eye specialist or not. The ADD is involved or used only when
the glasses are needed for close work or for reading purpose.
·
PRISM:
In case there is some special defect
in your eye or there is an eye disorder like squints or you have lazy eyes,
then prism is used to treat such special conditions. It is not suitable for
distance related disorders, besides it helps both eyes work together.
So, before you purchase an eyeglass for yourself on
prescription basis, it is important to understand these key points. Now reach
your store or find it online and buy
eyeglasses for men and women at lowest prices in India.