Scratches or smudges are common damages that you often find with your sunglass lenses after years of use or dropping on the ground. These scratches actually are not harmful to your eyes, but you have to live in inconvenient and distracting ways. If scratches are deep enough can cause irritating reflection and blurry vision.
If your sunglasses are affordable with a value of less than $50, it’s not worth replacing the lenses since the cost for replacement is about the same as buying a new pair of sunglasses.
In case you spent a lot money for the glasses and you love them very much, now you can save money by replacing the new lenses instead of buying new sunglasses. This article will show a step by step on how to replace new lenses for your loved one.
If you want to keep the same lens specification as the current shade you owned, please go to step 2. Otherwise, try a fresh look with various lens features available.
Step 1: Reviewing lens features that suit best your needs.
There are plenty of lens features available for protecting your eyes and matching your lifestyle. They not only ensure UV protection and scratch resistance but also give a fashionable appearance. .
Polycarbonate plastic lenses
Polycarbonate material now are a dominant player in eyewear market. We suggest choosing polycarbonate plastic or standard plastic lenses because of their lightweight, high durability, and impact resistance. They add more protection for your eyes against UV rays, too. Without the anti-scratch coating, the polycarbonate lens itself is not very resistant to scratches.
Nowadays, most eyewear companies considered polycarbonate lenses are a standard option for fashion and safety sunglasses.
Scratch-resistant coating lenses
Despite being slightly more expensive, the lenses with scratch-resistant coating have become popular in eyewear manufacturing since they provide an aesthetic appearance in the long term use. This coating is invisible and covers the lens surfaces to prevents outside damages and ensure long-lasting. Excepts for Ray-Ban aviator, most sunglasses now use polycarbonate lenses with a scratch-resistant coating built-in.
In the old days, the glass lens was a standard option for sunglasses due to its durability, scratch resistance, and supper clarity.
Honestly, glass is a vulnerable material to impacts, which often causes ugly scratches on the lenses. However, a minus point is that the glass lenses come with low UV protection to protect your eyes from the sun and may pose a high risk of eye injury. Furthermore, it is considerably heavy and fragile, so that you may experience some discomfort when wearing these glasses more often.
Today, glass lenses have become expensive since less popular. It is difficult for you to find glass lenses available from the market except for some models from Ray-Ban.
There are plenty of fashionable colors you may choose to match up your personal and outdoor activities. The most popular colors for multi-purpose use are grey and brown. You may choose other colors like green or blue that depends on your style and purpose. Lens colors do not tell how much UV protection that sunglasses provide. Lens made from polycarbonate can resist solar radiations. In case your lens is made from plastic, UV treatment needs to apply.
Not to mention having the same performance in blocking UV rays, polarized lenses have many advantages over the tinted lenses. Reflected light, known as glare, from flat objects like open water, the river is eliminated by polarized filters to ensure visual clarity and depth perception. This practical benefit may help you experience a clear vision and comfort in many situations like you are playing sport or fishing.
Step 2: Ordering lenses
Before ordering new lenses, you must understand the sunglasses specification that is printed on the left temple. Most eyewear brands use the same product coding in specifying the sunglasses spec. as below.
Model number - Color codes - Lens width □ Bridge width.
For example RB2140 901 58 52 □ 20 3P found on Wayfarer arm.
- RB2140 is model number for Ray-Ban wayfarer.
- 901 58: 901 is code for black plastic and 58 is code for green polarized lenses.
- 52 □ 20: 52 is the horizontal width of the lens and 20 is the bridge length or distance between lenses. Both of them are measured in millimeter.
- 3P : 3 is a code for normal condition and P means polarized lenses.
If you order new lenses from the manufacturer, you should provide the part number, color code, and glass sizes. Based on these codes, manufactures will pull out the frame specification to cut the new lenses per your requirement.
Local optical stores sometimes do not have enough information on the sunglass specs for many reasons as too old models, products made from unknown brands. In this case, you have to bring your glasses to the store. The optical technician will make new lenses to match your frame specs.
For other features, you would like like to add to your new lenses, please consult with a local technician.
Step 3: Replace the lenses
Identify your sunglasses whether they are made of metal or plastic. Metal sunglasses use the screw-in method and plastic sunglasses use the pop-in method to put the lens in place.
For metal sunglasses
- Hold or grip a sunglass frame firmly with your fingers. To avoid shaking or rolling during working, you may have the other side sitting on the table covered by a microfiber towel.
- Use a small screwdriver to loosen the screw (located near the hinge) by turning counterclockwise a few turns until you can pop out easily the lens by pressing on the back of the lens. Use the same procedures for removing the second lens.
- Now it is time to install the new lenses into the frame. Make sure the new lenses sit in the right position as the old ones without any gap.
- After checking both lenses set in place, you may tighten the screw by turning clockwise until secure. To do a final test by pressing gently on the lenses to make sure they do not pop out.
- Use a microfiber towel to clean your glasses and enjoy a fresh look from your new lenses.
For plastic sunglasses
- Position your glasses with temples or nose pieces faces to you and use a soft cloth to cover the lenses to make sure no broken pieces flying around in case the lenses break.
- Use your fingers both hands to hold outside of frame while other thumps position on the lens surface to create a thrust.
- To remove the old lens from the plastic frame by gently pressing your thumb and set these old lenses aside on a soft cloth. Sometimes you may have difficulty pop out the lens, the plastic frame may need to heat or put in hot water to make them more flexible.
- Position your glass with temples far away from you, set your new lenses into the right positions as old lenses. Hold the frame with other fingers and use your thumb to press the lens into the frame. If you hear a clicking sound that means you are doing right, your new lens is in the correct place. Apply the same procedure for installing the second lens. To make sure the lenses sit tightly in frame grooves, use your thumbs to press around the lens perimeter.
- Finally, clean your sunglasses with a microfiber towel and enjoy the clear view that the new lenses bring in.
Is our guide on how to replace sunglass lenses easy to follow? In case you find the way a little bit difficult, we suggest you go to a local store to ask for help from experts. And if you have any questions, feel free to drop us a line. Thank you!