31072011 Prescription glasses have many numbers by which doctors explain the status of your vision. A shows that you find it hard to see things that are far away without glasses.
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With your current pair of glasses on focus on an object in the distance at least 20 ft 6 meters away.
How to decipher glasses prescription. This box will have a or symbol before the number. If you see a it indicated farsightedness. Is the abbreviation for oculus dexter.
This indicates if you are long sighted and can see things far away or short sighted - and can see things close up. The number might be very small like 025 or a large number like 600. On your eyeglasses prescription the information for your right eye OD comes before the information for your left eye OS.
If you notice an Add power it means you require magnifying lenses such as progressives. Stands for oculus dexter meaning right eye. Eye doctors write prescriptions this way because when they face you they see your right eye on their left first and your left eye on their right second.
A minus - symbol next to this number means youre nearsighted and a plus symbol means the prescription is. 23102017 Measure your PD. The number refers to the power of the lens and the higher the.
This is short for oculus dexter and is your right eye. This represents which eye the prescription is written for. To convert a multi-focal prescription for single vision reading glasses simply combine the Add number and the Spherical number.
Both eyes are being prescribed an add power. Sphere Cylinder and Axis on Eye Prescriptions Sphere. For example if the Add were 225 and the OD-Sph was -050 the new OD-Sph for reading glasses would be 175.
For instance the starting number for OD is -200 referring to farsightedness or nearsightedness. In the left eye its base up BU. The - sign means the powered lens should be negative for nearsightedness.
You might read something like this on your eyeglass prescription. Stands for oculus sinister. Thats why I put together the following guide to help you decode your eyeglass prescription.
The higher the number the stronger the prescription lenses required. The correction for. If you see a it indicates nearsightedness.
YOUR EYEGLASS PRESCRIPTION DECODED Your eyeglass prescription is typically written in a grid like the one below using a combination of terms abbreviations and numbers. They are Latin abbreviations. A in the box indicates that you are long-sighted which means you find it difficult to see things close to you.
OS -150 SPH 100 add 05 pd. Once you understand the sections of your glasses prescription youll be able to figure out what all those numbers mean. The sign means farsightedness.
20102005 In the upper section of the prescription sheet there will be a place for your name your age or birth date your address and the date the prescription is given to you. If youre farsighted your prescription will contain numbers with a plus symbol labelled under Sphere SPH. Of 200 D for the correction of presbyopia and this spectacle prescription includes a prismatic correction of 05 prism dioptre in each eye.
Right and Left Eye. In the right eye the prism is base down BD. Other parts of your eyeglasses prescription.
More accurately with focus points on your glasses. If the Sph were 025 the new Sph would be 250. While it may look like a secret code your prescription is really quite simple to decipher.
This is short for oculus sinister and is your left eye. Usually youll see these abbreviations along the left side. The Latin term for right eye.
If youre nearsighted your prescription will contain numbers with a minus - symbol labelled under Sphere SPH. BU This prescription is for the left eye and -150 means that your nearsightedness is measured at 1 and 12 diopters. The sphere SPH on your prescription indicates the lens power you need to see clearly.
18022021 How do I read my glasses prescription. Consequently the Add will then become zero the default. In a typical prescription like the one above youll find these abbreviations on the left side.
Its considered a mild amount of nearsightedness. When you look at your prescription for eyeglasses you will see numbers listed under the headings of OS and OD. Heres a quick summary.
Below this your. We know these as the instructions for making your glasses but what do they actually mean.
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