Full Answer
Why are my eyeglasses so thick?
The overall width and height of your lenses can have a considerable impact on the thickness of the lenses themselves. The bigger the lens, the thicker it tends to be.
Do high index lenses make your glasses look thicker?
If you wear prescription glasses and have a strong prescription, you will be very happy with the effect that high index lenses have on your lens thickness. If you have thick lenses on your glasses, you can make them look thinner.
Why are astigmatism lenses so thick?
In addition, prescriptions with moderate to high astigmatism correction often result in thicker lenses. 2. Lens Material or Lens Index. The lens index refers to the “index of refraction,” or how much the lens bends the light that enters it.
Are your glasses too tight or too loose?
Your glasses will feel very uncomfortable if your frames are too tight on your temples. On the other hand, if your frames are too loose, it can look and feel a little awkward. Either way, you can adjust your frames at home for a more comfortable fit:
Why are my high index lenses still thick?
Therefore, a stronger prescription tends to result in thicker lenses. Even though high index lenses are naturally thinner than plastic lenses, this same principle applies to them. These lenses may still look thick due to your particular prescription.
Can the thick glass on my glasses be thinner?
Well, if you already have thick glasses, you unfortunately can't make them thinner. If you want thin lenses, you'll need to order a new pair of prescription glasses with high index lenses. High index lenses have a higher refractive index than regular plastic lenses, making them more efficient at making a prescription.
Why are my glasses lens thick?
Why are thick glasses lenses so thick? It's a hard truth to swallow, but the stronger your prescription, the thicker your glasses will be. The way in which eyeglasses correct sight is by using curved lenses. Those who are nearsighted have lenses that are thicker at the edge and thinner in the middles.
At what prescription do glasses get thick?
The higher that diopter rating creeps, the thicker the lenses grow. Some people require prescriptions as high as +/- 20.00 diopters or more, producing lenses that are extremely thick, heavy, and distortive.
Are 1.67 lenses worth it?
The difference between 1.67, which is considered regular index and 1.74 is quite small, and really, the only way you'll notice the difference is if you have a prescription below a -6 or above a +4. However, if you are in need of a very strong prescription, it is absolutely worth the additional cost!
Do I really need 1.67 high-index lenses?
A high-index lens may be recommended if your optical prescription is above 2.00 diopters. High-index lenses have a refractive index above 1.50— ranging from 1.53 to 1.74.
How thick is a 1.67 lens?
1.67 (Thinnest and Lightest) 1.74 (Thinner and Lighter)
Why are some glasses so thick?
In short, the wider your PD, the thinner your lens thickness will be. So let's sum up, and look at some key remaining things that can also affect lens thickness: Your minus prescription. The higher your prescription, the thicker your lenses will need to be.
Can I get my lenses thinned?
For some prescriptions, thinner lenses are 25-30% thinner AND lighter compared to old-fashioned, basic plastic lenses. Some prescriptions will benefit even more with Ultra thinner lenses, which could be up to 45% thinner and lighter.
Is there a big difference between 1.6 and 1.67 lenses?
A mid-index lens of refractive index 1.6, approximately 20% thinner than a standard lens. A high-index lens of refractive index 1.67 will be approx. 33% thinner, whereas a lens with a refractive index of 1.74 will be around 42% thinner.
Is 1.67 or 1.74 lens thinner?
1.74 high index lenses are thinner and lighter than 1.67 high index lenses. 1.67 high index lenses are much less costly compared to 1.74.
When should you get 1.67 high index lenses?
1.67 high index lenses are suitable for prescriptions with an: SPH correction of +/- 7.00 and +/- 9.00, and; CYL correction of +/- 3.25 and +/- 4.00.
What are high index lenses made of?
High index lenses are made with a particular type of plastic that refracts light more effectively than standard index lenses. This usually means th...
Do high index lenses make eyes look smaller?
High index lenses cause less distortion than lower index lenses with the same prescription. If your prescription is high and your lenses are large,...
Why are high index lenses so expensive?
High index lenses are usually more expensive than lower index lenses because they’re made with more costly materials. The benefits of high index le...
Why are my glasses lenses so thick?
If your eye prescription is high, your lenses will need to be cut thicker to correct your vision correctly. Luckily, choosing higher index lenses f...
Do I need high index lenses?
If you have a high eyeglasses prescription, high index lenses are recommended to ensure that your lenses are as thin as possible. As well as lookin...
How thick are polycarbonate lenses?
EyeBuyDirect’s polycarbonate lenses are cut at a 1.59 lens index. We recommend these lenses for medium-strength prescriptions. Polycarbonate lenses...
How thick will my lenses be?
You can select the thickness of your lenses at EyeBuyDirect by choosing a lens index. The stronger your prescription is, the higher the lens index...
Why are my eyeglasses smaller?
High index lenses cause less distortion than lower index lenses with the same prescription. If your prescription is high and your lenses are large , it can result in your eyes looking smaller or larger, depending on whether you are near or farsighted. High index lenses reduce this effect.
What is the difference between thicker and thinner lenses?
The lens thickness you should get depends on your prescription and your lifestyle. Thicker lenses are more affordable, but can only accommodate lower vision correction needs. Thinner lenses are lightweight (and more stylish!) and can accomodate ALL kinds of vision needs, including higher prescriptions!
What is high index lens?
High index lenses are made with a particular type of plastic that refracts light more effectively than standard index lenses. This usually means that they can be cut thinner than other lenses while providing perfect vision correction for stronger prescriptions.
What is lens index?
Lens index is a number that describes how thick or thin your lenses are. The higher a lens' index is, the thinner it becomes. Higher prescriptions require higher index lenses, while lower prescriptions require lower index lenses. Lens Indexes. watch the video.
Can you cut your eyeglasses thicker?
If your eye prescription is high, your lenses will need to be cut thicker to correct your vision correctly . Luckily, choosing higher index lenses for your glasses means they can be thicker and still correct your vision perfectly.
How to make glasses more pliable?
Adjust frames a little at a time to avoid overcompensating. Running the arms under warm water will make them more pliable. Only use water as warm as you can get from the tap. Do NOT use boiling water. Avoid running warm water over the lenses, as it can affect the lens coatings.
What do you do if your glasses are higher than the other?
If you notice that one side of your frames appears higher than the other, you need to adjust the arms of your glasses (the part of the frames that hooks behind your ear).
Why do glasses feel uncomfortable?
Your glasses will feel very uncomfortable if your frames are too tight on your temples. On the other hand, if your frames are too loose, you can look and feel awkward.
Why do my glasses slide down my nose?
Your glasses slide down your nose. Frequently pushing up your glasses because they’ve slid down your nose is annoying , but adjusting your glasses to fix this is easy. If you have metal frames: Use your thumbs to narrow the nose pads until the frames no longer slip.
How long should I soak my glasses in water?
If you wear plastic frames: Once you’ve soaked the arms of your glasses in warm water for 30-60 seconds, gently apply an upward and outward pressure on the end of the arms to achieve a more relaxed fit. HELPFUL TIP: If after your adjustments your glasses still pinch your nose, seek professional help from an optician.
What materials are used to fix glasses?
These materials include frames made of aluminum alloy, titanium or memory titanium, and memory plastic.
Can you break your temples with rimless frames?
Repeat on the other side for a tighter fit around your temples. HELPFUL TIP: Adjusting the temples of rimless, semi-rimless or plastic frames could cause them to break. It’s recommended that you take these types of frames to an optician for adjustment.
How to keep glasses from scratching?
To keep your glasses looking new, store them in a cushioned case when not in use , and clean your lenses with a microfiber cloth and the cleaning solution your optician recommends.
Why do my glasses fog?
Lens fogging is caused by tiny water droplets that form by condensation on the surface of eyeglass lenses when the lenses are significantly cooler than the surrounding air temperature. Optifog works by uniformly spreading these water droplets across the lens surface so they become invisible, Essilor says.
What is UV treatment for eyeglasses?
Another beneficial lens treatment is an invisible dye that blocks ultraviolet (UV) light. Just as sunscreen keeps the sun's UV rays from harming your skin, UV-protective treatments for eyeglass lenses block those same rays from damaging your eyes.
What is Optifog lens?
Optifog lenses are available in plastic, polycarbonate and high-index plastic lens materials, with or without Essilor's proprietary Crizal anti-reflective coating. SEE RELATED: Anti-fog for glasses.
How to get rid of fog on Optifog lenses?
The anti-fogging property of Optifog lenses is activated by applying a drop of Optifog Activator to each side of the lens, then wiping the lens with a microfiber cloth to thoroughly spread the liquid across the entire lens surface. This treatment keeps the lenses fog-free for up to one week, according to Essilor.
What is lens coating?
Lens coatings: Anti-reflective, scratch resistant, anti-fog, UV. Lens coatings can enhance the durability, performance and appearance of your eyeglass lenses. This is true whether you wear single vision, bifocal or progressive lenses. If you are thinking about purchasing new eyeglasses, here are lens coatings and treatments you should consider.
Why do you need AR coating on sunglasses?
And AR coating is beneficial when applied to the back surface of sunglasses to eliminate "bounce-back" reflections when you are facing away from the sun. For the best possible comfort in all lighting conditions, eye care professionals usually recommend applying anti-reflective coating to photochromic lenses.