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Average pupil distance male9/13/2023 ![]() At night, our pupils dilate to let more light in so we can see well. They appear as black circles in the center of the colored part of our eyes, called the iris, and it is actually a muscle that opens (dilates) and closes (constricts) to let more or less light into our eyes. The pupils are in the center of our eyes. Why do you need this number to order glasses? Truth is, without this number, your glasses will not fit you correctly and you will likely experience blurry vision and headaches. If you’ve ever ordered glasses online, you are probably even more familiar with this “PD measurement”, and may have even attempted to measure it yourself at some point. You may ask your eye doctor for a cloth replacement if you accidentally lost it.If you have ever purchased eyeglasses you have probably heard of the measurement of the eyes called the pupillary distance (PD). Using paper products, shirts, and handkerchiefs may trap abrasive particles which scratch the lenses. More importantly, wipe the lenses with the cloth that came with your glasses. Rinsing the lenses will help you eliminate particles that might cause scratches. Also, before wiping the lenses, it is advisable to rinse them with tap water. ![]() When not in use, ensure to place glasses inside the case to prevent damage to the lenses and frame. Hence it would be best if you put extra care into them. However, in some cases, prescription lenses can be expensive. ![]() There might be some lenses that you can generally afford to buy more than once. Taking care of your frames also means ensuring the prescription lenses are in good condition. With this, you may want to avoid frames with little to no rim as they make thicker lenses more noticeable. Thicker frames are usually better suited with thicker lenses. Avoid using frames that are rimless and semi-rimless. Additionally, not much of the lens will stick out with plastic frames.Ĥ. Thicker plastic frames allow you to hide the lens thickness better. Plastic frames are better than metal ones. Remember that wider lenses result in lenses sticking out and being noticeable.ģ. This means that the lens will look thinner. Several round glasses frames come with smaller lens widths. Rounder frames can help disguise stronger prescriptions. Smaller, oval frames are an excellent choice as they help reduce distortion and thickness, which are usually seen at the edges when using larger frames.Ģ. If you are expecting thick lenses, avoid large rectangular glasses frames, especially those with sharp angular edges. However, for your guidance and considering the lens thickness, you might consider these tips before buying one.ġ. You always have the freedom to choose which frame style to buy for your prescription glasses. How to buy the right frame based on lens thickness? It is just a mere measurement that basically depends on a person’s eye and face size. Remember that whatever pupillary distance you have, it does not have a bad or good effect. ![]() To put it, thinner lenses mean that the pupillary distance is wider. The optical center should align with the pupillary center to optimize vision and minimize distortion. Some people call it a pupillary distance which refers to the distance between the center of two pupils. However, it is also worth noting that it can be expensive. Of course, you can decide to have thinner lenses through a higher lens index. Like how lens index affects lens thickness, the stronger the prescription, the thicker the lens would be. On the other hand, rounded lenses help bring some areas of the lens thickness down. In context, suppose you choose an oblong frame shape the sides of the lens will look thicker. Therefore, the larger the frame you get, the thicker the turnout of the lens. Suppose you opt for a larger frame size the lens thickness also increases, utilizing the side part of the lens, which is the much thicker part. Lens indices can either be 1.5, 1.57, 1.59, 1.6, 1.6, or 1.74.įrame choice is also essential, especially for those with a high-power prescription. ![]() You might have noticed that while your eye prescription increases, the lenses get thicker and heavier. Additionally, high index lenses have stronger corrections without using thicker lenses. In some cases, materials, specifically those used in high index lenses, bend light more efficiently. The lens index refers to the number representing the refractive power of the material of the lens, which generally determines the lens thickness. To understand why these thick lenses exist, one needs to know about the refractive index, frame size, pupillary distance, and prescription value. You might be one of those complaining about having thick prescription glasses. But some also have to consider the thickness of the lenses. People wearing prescription glasses get excited by the mere fact of choosing a new frame for their lenses. ![]()
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