Prescription
You can read your prescription easily whether they are written in any style by reading our guidelines Click here for proper guidance about reading prescription.
EASYSIGHT will help you to understand optical abbreviations. Here is a list of some optical abbreviations
1). ADD or NV ADD : Near Vision Reading addition . It is needed in Bifocal or progressives glasses.
2). AR : Anti-Reflection Coating  click here to know more.
3). Axis : The angle at which the Cyl is placed in lens to correct an astigmatism.
4). BAL : Balance lenses , meaning the same prescription for each eye.
5). BD, BI, BO, BU : ‘B’ Stands for Base and BD for ‘Base down’ BI for Base In , Bo for Base out and BU for Base Up, These are prism correction on your Rx indicated by Δ.
6). CYL: The Cylinder CYL corrects an astigmatism combined with Axis.
7). DS : Diopter Simplex. It can be written in CYL field if CYL is not needed.
8). DV : Distance Vision.
9). FT : Flat Top Biofocal.
10). NV : Near Vision.
11). NV ADD or ADD : Near Vision Reading or Addition.
12). OD : Oculus Dexter, Meaning Right Eye.
13). OS : Osulus Sinister, Meaning Left Eye.
14). OU : Oculus Uterque, Meaning each Eye.
15). PAL : Progressives Addition/Adjustment lens.
16). PD: Pupillary Distance Meaning Distance between your both Pupils Click here to know more.
17). PL : Plano meaning Plane. It can be written in any OD or OS to show no correction is needed.
18). RX : A prescription
19). SPH : Spherical, uses for nearsighted or farsighted correction.
20). UV : Ultra-Violet. The Light which is invisible and harmful light for human eye. EASYSIGHT provides sunglasses with UV protection.
21). VA : Visual Acuity. Indicates how well the eye can see.
22) . Δ : Prism used for positional or convergence correction in double vision/ diplopia caused by strabismus, (a condition in which any of six muscles does not Co-ordinate in eye movement)
Your pupillary distance (PD) is the measurement of the distance between your pupils. Click here to learn more.
To order single vision distance glasses by EASYSIGHT is very easy with the following steps
(i) Click Select Lens
(ii) Select Single vision to indicate distance glasses
(iii) Input PD (Single or Dual PD ) Pupillary distance from your prescription or measure it by yourself click here to know more.
(iv) Enter the Prescription for the right eye (OD) and left eye (OS) .
Note : To make these steps more easier, EASYSIGHT offer you to upload the picture of original prescription.
To order single vision reading glasses by EASYSIGHT is very easy with the following steps
(i) Click Select Lens
(ii) Select Single vision to indicate reading glasses
(iii) Input PD (Single or Dual PD ) Pupillary distance from your prescription or measure it by yourself click here to know more.
(iv) Enter the Prescription for the right eye (OD) and left eye (OS) .
Note : To make these steps more easier, EASYSIGHT offer you to upload the picture of original prescription.
Off course , Divide the NV-ADD or ADD in half
e.g ADD =+2.50 / 2= +1.25 Now +1.25 is your new NV-ADD
Leave one half as reading additional and add the other half of NV-ADD in SPH Value
e.g SPH = -1.00 and NV -ADD =+2.50. Now, Near NV -ADD= -1.00 +1.25 = +0.25
Now you have got your computer glasses Rx as SPHÂ =+0.25 and ADD= +1.25.
Note : To make these steps more easier, EASYSIGHT offer you to upload the picture of original prescription.
Yes, You can fill prescription with prism correction by following steps.
(i) Click Select lens.
(ii) Fill SPH (Sphere )Â CYL ( Cylinder ) and Axis number for each eye.
(iii) Check prism box.
(iv) Now Select prism Value with BI ( Base In), BO ( Base Out), BU ( Base Up) and BD (Base Down) value .
Note : To make these steps more easier, EASYSIGHT offer you to upload the picture of original prescription.
Sorry ! contact lens prescription are used only for contact lenses.
It’s easy with EASYSIGHT to order Non-prescription glasses.
(i) Click Select Lens
(ii) If You want to turn them into blue cut lens then Select Blue Cut  Know more about Blue Cut Lens here.