Nothing in the world is made with only advantages. High index lenses are nothing different; they have demerits too. In the world of lenses, people who have astigmatism, nearsightedness, and farsightedness use high index lenses.
It tilts more lightly than a standard lens. People who have severe vision problems use this kind of lens. It permits the reduction behind the soda bottle glasses.
So, are you looking for high index lenses disadvantages? On the presumption, you must read this article. Today, we will discuss high index lenses before and after. If you are interested to know about high index lenses disadvantages, read this article till the end.
5 Disadvantages of high index lenses
Here is our point; let’s get into it. Everything has two aspects- good and bad. The exact role goes for this lens. The high index lenses have some disadvantages too. However, they don’t have any significant disadvantages that can harm you. The main problem with these lenses is the high cost and less stability. Let’s know about the issues in detail.
High index lenses are made from a synthetic chemical brand. These are created by a unique manufacturing process. At the time of cutting these, exceptional craftsmanship is required.
For these reasons, high index lenses cost more than standard lenses. In many places, it rates double price higher than the standard lenses. This creates an immense problem for many wearers.
High index lenses can be prone to scratches and thickness. It may affect its stability time and may lead to change more often. For that reason, it is likely less friendly for children or rough users.
High index lenses are a little pricey. High index lenses can cost up to three times more than regular lenses. It’s just because this sort of lens is hard to manufacture and demands more precision for crafting. The price can be ok if you compromise their quality.
High index lenses are easily breakable. This sort of lens has a higher tendency to put a scratch over it. In most cases, these lenses can be torn more easily. Thankfully, there is an option of anti-scratch coatings which you can add further if necessary.
In spite of being brittle, high index lenses are more reflective too. Excessive reflection may give you trouble when your glass becomes glare even if you’re unable to see anything.
Especially when you’re out during summer days it’s perfect. Fortunately, in those cases, you can get a precaution like the brittle’s anti-scratch coatings known as anti-glare coatings. Thus, you can overcome these issues.
What are high index lenses?
Before going to the disadvantage, let’s become clear about what is a high index lens actually. High index lenses are a unique type of punitive lenses. Generally, people go for such types of lenses while doctors prescribe them. These lenses bear a higher refractive index than their conventional counterparts.
In ancient times, people suffering from vision problems used to use bulky eyewear. That eyewear didn’t possess light and trendy glasses. But at present, high index lenses have brought about a progressive change in that sector. It has light, slim, fashionable glasses.
Nowadays, anybody can pick up their preferable type of trendy, lightweight glasses having vision problems.
If you want to know about high index lenses, you have to know about the basic lens work system. A faulty Vision problem means misalignment of any lenses among the two of one person. In other words, a vision problem means when anyone can’t see anything or faces trouble seeing things clearly with his eyes.
The faulty vision keeps the lens restricted from focusing any image on the retina, and that causes blurry vision. High index lenses help people having flawed vision by adjusting focal points, bending so that one can see sharp & clear images without any difficulty.
Why Are High Index Lenses So Expensive?
Compared to any regular or plastic lenses, a high index lens can cost an expensive price tag, of course, there are enough reasons why the price is high. The first reason might be its implicit material.
All the high index lenses are produced by a special type of plastic and glass material that is denser than crown glass, standard plastic, or polycarbonate.
Another reason is the higher refractive index of a high index lens. A regular lens contains a 1.50 refractive index, while a high index lens ranges from about 1.53 to 1.76. All of these factors may be the reason behind the high price of a high index lens.
A high index lens has a higher refractive index and is created to be thinner and lighter compared to any regular lens. Ophthalmologists recommended this specially made lens for those who have high-refractive issues.
In most cases, high index lenses play a vital role in high prescriptions for astigmatism, myopia, and farsightedness.
However, you may notice that a regular lens also functions the same but there’s a fact because a high index lens is designed in such a way that it bends light more efficiently.
Is There Anything Better Than High Index Lenses?
A high index lens is perfect from all sides, It helps people to enhance their style, and also it can be used to fix eye errors. But when it comes to finding something better than a high index lens, we may need to describe the type of lenses.
Polycarbonate: Due to its high impact resistance, this type of lenses is widely popular for sports goggles and children’s eyewear.
Trivex: This lens is not recommended for solving your eye’s refractive errors but if you’re enough serious about protecting your eye from UV rays and other harmful rays, A Trivex lens can be the best option.
CR-39: Although the name is a little bit different, this lens is simple and known as a standard plastic lens. It is available at a low price. It offers enough optical clarity.
However, the only issue with a CR-39 lens is it does not have adequate UV protection capability and is not sufficiently impact resistant. Some people also blame that a CR-39 lens is heavier.
High Index: This type of lens can meet all your needs. If you have high-refractive eye issues and at the same time you want to increase the beauty of your face, A high index lens can play an important role because it’s lightweight, durable and most importantly it can solve your eye’s errors.
What we understood from the discussion is nothing better than a high index lens, however, Polycarbonate, Trivex, and CR-39 lenses can work better for other purposes.
Do high index lenses reduce distortion?
If you have peripheral vision and can see things outside of your direct line of vision without turning your head, There’s enough of a chance for distortion because a high index lens has a 42 Abbe value that is higher than regular plastic and glass.
Do high index lenses make your eyes look smaller?
No, Since the high index lenses are thinner, lightweight, and slim, so they do not make your eyes look smaller while you are wearing them.
Is there a big difference between 1.67 and 1.74 high index lenses?
There is no big difference between them. In short, The 1.67 high index lenses are heavier and thicker than the 1.74 lenses. 1.74 lenses are advised for those who have a high prescription.
Facts of Using High index Lenses
High index lenses are made from a variant type of plastic, which is known as an index. This plastic permits to make lenses ultra-thin than lower index plastic materials. Generally, high index lenses are of three types which are high index lens 1.60, 1.67, and 1.74.
There are many people who assume those numbers as lens power while the fact is different. Those numbers indicating different types of lenses are nothing but plastic names. The types actually depend on the material. Nowadays, most aspheric lenses are high index.
When someone suffers from a severe vision problem, doctors’ will suggest a high index lens. Thus, it bends lightly and centralizes on the retina instantly. However, some bad things about high index lenses are there which you should know.
Finally, we are in the last part of the article. Here we have discussed high index lenses’ disadvantages. In the overall article, we have highlighted the high index lenses entirely.
It’s up to you totally whether you want to buy it or not. However, if you have a doctor’s recommendation, you should use it. Comparing to their helpfulness, these types of lenses have lesser demerits. We hope after reading this article, you will find it beneficial for you.
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