For those who require glasses with strong prescriptions, they might ask which lenses to choose. The lenses you choose for your glasses matter a great deal; they impact your vision and your comfort in wearing your glasses. Here are two common choices for people with high prescriptions: 1.67 high index lenses and polycarbonate lenses. We’re going to examine the pros and cons of each to determine which is best for you!
There are trade-offs involved with 1.67 high index lenses, however. The downside is that they can be more expensive than other styles of lenses. This is something to keep in mind if you have a limited budget. Also, 1.67 high index lenses are weaker with impacts than polycarbonate lenses. This is important to consider if you play sports, are very active or work jobs where there may be a potential risk of being struck in the face.
The materials used for these lenses are different, for starters. 1.67 index lenses are also superior in that this type of lens material will make the lenses thinner, thus allowing for a thinner, more comfortable pair of eyeglasses overall. Polycarbonate lenses, however, are made from a tough material that is extremely durable and impact-resistant. Polycarbonate lenses can therefore resist being crushed better than 1.67 high index lenses, and an accident should not damage them.
Second, these lenses also refract light differently. The lens bends light in a certain way known as the refractive index. This helps when a more powerful prescription without an extra-thick lens is needed: a lens that can bend light better. As the refractive index rises, a lens can adjust vision correction without getting very thick. That is why, for those with strong prescriptions, 1.67 high index lenses are a good option.
Finally, think about your specific prescription. If your prescription is very strong, you might prefer 1.67 high index lenses. These lenses cater to strong yet thin prescriptions and give you a chance to recommend your readers lenses that will be effective yet not overly thick. If there's lower needing prescription you may not be as concerned about thickness and a polycarbonate lens is a good choice.
Second, consider your daily habits and way of life. If you are particularly active, play sports or work in a job in which you might get bumped or hit, consider polycarbonate lenses instead. Well because they are impact-resistant, they can protect your eyes and they are less likely to break when something hits them. Having this extra layer of protection can make a huge difference when it comes to your safety.
In conclusion, both 1.67 high index lenses are good for strong prescription glasses and polycarbonate lenses. 1.67 is less dense and more able to bend light, therefore allowing for good vision without the extra weight and volume. Polycarbonate lenses, on the other hand, are sturdy and impact resistant, which make them less likely to break than plastic, a more suitable option for anyone who leads an active lifestyle.
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