So people often ask me what the numbers of their glasses prescription mean. We’ll break it down bit by bit. So you know exactly whether you’re, short-sighted or long-sighted or how bad your eyesight. Is. Now let’s get started. So your eyes work like a camera where light enters the eye or the camera lens Optical Center. And it has to focus the light on the back of the eyes. What we call the retina or the sensor of the camera. When light, does not focus on the retina. It ends up focused either in front or behind the retina. That’s when you see things out of focus. , When you have perfect vision, your eyes focus light on the retina.
Outdoor use and sports and safety glasses if they aren’t tinted. There, suitable for indoor home and work use. And although people do use polycarbonate lenses. Inside as well again, as I said. The quality of the lenses is subpar. To the trivet lenses and makes it less suitable for hours of reading or working on your computer. So for that kind of activity, I would recommend trivet lenses. Now the main downside of trivet lenses. Is that more expensive than polycarbonate lenses all right? So those are three lenses that you can choose from. If you have any more questions. We would love to help you head on over to our website where we have a chat option or give us a call.
Glasses and contact lens
When things are out of focus, we must glass to help redirect the light to focus on the retina to achieve clear vision. A glasses prescription tells us exactly what power lens requires to do that. There are 3 main conditions that cause this poor. Focusing on light short sightedness, long, sightedness, and astigmatism. A typical glasses prescription looks something like this. We have the prescription for your OD. (Oculus, Dexter,) and OS (oculus, sinister), which is the Latin abbreviation for the right eye and left eye.
Positive Negative Number
Next to it is the first number, the sphere which tells us the strength of your prescription. A positive number means you are long-sighted or hyperopic. And a negative number means you are short-sighted or myopic, and the larger the number that goes away from 0. The stronger the prescription. – This measure in diopters, is the measurement of the refractive power of the lens. That is a must get your best vision, and it goes by 0. 25 diopter steps. . So from 0 you then have 0. You may also see written prescriptions, which stands for Plano, which means 0. So you are neither long-sighted nor short-sighted. The second part of your prescription is the acyl or cylinder. This determines the strength of astigmatism you may have. Which annotate with a minus in front. You might find some scripts done by ophthalmologists. With a plus in front, the script still tells us the same thing and we can convert it to the minus format. Shop Other Products