Blog - Prescription Eyeglasses Online
It is necessary to build or distribute corrective lenses suitable for patients with vision problems. However, this prescription is by eyewear doctors, such as optometrists or ophthalmologists. If the examination shows that corrective lenses are appropriate, the doctor at the end of the examination gives the patient a prescription for the glasses. Therefore, an eyeglasses prescriber prescribes the eyeglasses recipe
There are many complaints and dissatisfaction with customers who do not get the right glasses to satisfy their needs or glasses that do not fit their face because buying glasses can be daunting and tedious. Many also complained that they did not have access to affordable, high-quality glasses. That is why we are here to look carefully for glasses that would express every aspect of your personality, cheap glasses for men and women, and even for children, in all shapes, styles, and colors you can imagine.
Numbers and sign prescriptions
Let's start with the numbers and prescriptions of signs on glasses, what they mean, or how to read your prescription glasses.
It may seem incomprehensible, but in reality, these figures are easy to decipher. Your ophthalmologist has written a series of numbers that indicate the type and extent of your vision problem. For example, spherical error (SPH) in your medication glasses refers to the amount of correction you need if you have hyperopia or farsightedness. If you have astigmatism, you will have a cylinder number that indicates the power of the lens you need to correct blurred and distorted vision
Recipes for multifocal lenses
If you are reading a lot or need multifocal correction, your eyewear prescriber will need to add a crystalline additive power number to your recipe. For the sake of clarity, the "+" or "-" signs scattered around these numbers only tell the level of correction they need.
Understanding Your Pupillary Distance Number
We need this information to determine where your lenses should be placed in the boxes you choose because ordering glasses online also requires your pupillary number or distance.
Although you probably know if you have nearsightedness, farsightedness or astigmatism, finding out what your prescription is saying is another thing. When you have just completed your eye exam and find out that your eye needs have changed, you need to get a new prescription. Your optometrist or ophthalmologist will help you order your new prescription.
So how do you do that?
This is how most online marketers work; they will ask you to read and write your recipe on the order form; If you can't read your prescription, don't worry, your optometrist or ophthalmologist will assist you in the process so that it doesn't get complicated.
Let me briefly explain some terms to you
The terms in your eyeglass prescription are numbers that accurately describe how your lens lenses should be so that you can enjoy high-quality vision accuracy. You will usually see several abbreviations and words that indicate all your important information. See below for some of these abbreviations and its explanations. Abbreviations or terms like SPH, CYL, axis, prism, PD, "OU", "OD" and "OS" and more
- "OU", "OD" and "OS"
The indications "OD" and "OS" mean "right eye" and "left eye." These are Latin words. while "OU" means both eyes, used in rare cases.
- Sphere (SPH):
This term describes the degree of correction needed to correct a patient with myopia or hyperopia.
- Cylinder (CYL):
The figure indicates the power of the lens needed to correct astigmatism in your eyes.
This indicates the orientation of astigmatism measured from 1 to 180 degrees. The number 90 corresponds to the vertical meridian of the eye and 180 corresponds to the horizontal meridian of the eye. So, if patients do not have astigmatism and do not have a shift on their prescription list, they will also not have an axis number.
This number indicates the amount of prismatic energy, and its measurement is in diopters, and this number offsets any problem of alignment in the eyes of patients.
This will appear in his column or included in the prism column. This column indicates the direction of the prism by observing the relative position of its thickest edge. If the base address is in place, the column will indicate "BU", which means "base on top" or simply "top". If the base address is down, it will read "BD", which means "base down" or "down". What happens if the base address is up to the user's nose, then the column will say "BI", meaning "base in" or "inside"? What happens if the base shows from the nose carrier and toward the ear? "BO" will display in the column, which means "base outside."
- Add or NV:
The numbers associated with one of these terms (Add or NV) indicate the additive power needed to correct your immediate vision near you if your prescription is mainly for distance correction.
- Pupil distance (PD)
The PD number indicates the distance between centres from one student to another. When it comes to personalizing a goal, that number is important.
Congratulations, now that you know what these terms mean, I can boldly say that you can read corrective lenses. This, in turn, is the most important part of learning to buy glasses online. By knowing these terms, you can also more easily analyze your recipe with your professional visionary.
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