Ethan Clarke
When it comes to choosing the right lenses for your glasses, there are several factors to consider, including the type of lens material. Two of the most common lens materials are plastic and polycarbonate. Plastic lenses, also known as CR-39, have been widely used since the 1970s due to their lightweight and durable nature. They are also more affordable than polycarbonate lenses. However, plastic tends to be thicker, which can be a drawback for those with higher prescriptions. On the other hand, polycarbonate lenses are thinner, more lightweight, and stronger than plastic. They offer excellent impact resistance, making them ideal for children and active adults. While polycarbonate lenses may not offer the same optical clarity as plastic lenses, they provide built-in UV protection and are a popular choice for those with higher prescriptions. Ultimately, the choice between plastic and polycarbonate lenses depends on individual needs, preferences, and budget.
| Characteristics | Values |
|---|---|
| Popularity | Polycarbonate lenses have been popular since the 1980s. Plastic lenses are also popular. |
| Use cases | Polycarbonate lenses are used in standard prescription glasses, safety glasses, goggles, children's glasses, and sports eyewear. Plastic lenses are ideal for everyday glasses and Visual Display Users (VDU). |
| Thickness | Polycarbonate lenses are thinner than plastic lenses. |
| Weight | Polycarbonate lenses are lighter than plastic lenses. |
| Impact resistance | Polycarbonate lenses are more impact-resistant than plastic lenses. |
| Vision correction | Polycarbonate lenses offer excellent vision correction. |
| Prescription strength | Polycarbonate lenses can accommodate stronger prescriptions than plastic lenses. |
| Scratch resistance | Polycarbonate lenses scratch more easily than plastic lenses. |
| UV protection | Polycarbonate lenses offer total UV protection without the need for additional coatings. Plastic lenses offer only partial UV protection. |
| Cost | Plastic lenses are less expensive than polycarbonate lenses. |
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What You'll Learn
- Polycarbonate lenses are thinner and lighter than plastic lenses
- Plastic lenses are less expensive than polycarbonate lenses
- Polycarbonate lenses are more impact-resistant than plastic lenses
- Plastic lenses are more scratch-resistant than polycarbonate lenses
- Polycarbonate lenses offer total UV protection, while plastic only offers partial protection
Polycarbonate lenses are thinner and lighter than plastic lenses
When choosing lenses for your glasses, there are a variety of factors to consider. Polycarbonate lenses are thinner and lighter than plastic lenses, with a range of benefits. Firstly, they are highly impact-resistant, making them ideal for children, active adults, and safety eyewear. They are less likely to crack, chip, or shatter compared to other materials. This durability also means they are suitable for industrial workplaces where there is a risk of impact.
Polycarbonate lenses are a good choice for people with higher prescriptions. They can accommodate strong prescriptions without adding bulk, making them aesthetically pleasing and comfortable to wear. Their thinness can improve optical clarity, especially at the edges of the lenses. Additionally, polycarbonate lenses are lightweight, ensuring they rest comfortably on your face.
Another advantage of polycarbonate lenses is their UV protection. They naturally block 100% of harmful UV rays, providing total protection for your eyes without the need for additional coatings. This feature makes them a safer option than plastic lenses, which only offer partial UV protection unless a UV coating is applied.
While polycarbonate lenses offer superior impact resistance and UV protection, they do have some drawbacks. They are more expensive than plastic lenses and scratch more easily. Plastic lenses, also known as CR-39, have been widely used since the 1970s and are still a popular choice due to their lightweight and durable nature. They are less likely to break or shatter than glass, making them a safe and cost-effective option. However, plastic lenses tend to be thicker, which can be a consideration for those with higher prescriptions.
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Plastic lenses are less expensive than polycarbonate lenses
In terms of protection, plastic lenses offer only partial protection from harmful UV rays, while polycarbonate lenses provide total UV protection without the need for an additional coating. Plastic lenses are more susceptible to scratches, and while a scratch-resistant coating can be added, it comes at an extra cost. Polycarbonate lenses are also prone to scratches, and a scratch-resistant coating is recommended to help them last longer.
When it comes to optical clarity, plastic lenses have higher clarity than polycarbonate lenses, which may cause distorted peripheral vision in those with stronger prescriptions. Additionally, some people with higher prescriptions may experience surface reflections and colour fringing with polycarbonate lenses, and an anti-reflective coating is recommended to reduce this effect.
Finally, it's important to consider your individual needs and preferences when choosing between plastic and polycarbonate lenses. An eye doctor can provide guidance based on your prescription and lifestyle, and an optician can offer information about special coatings and treatments.
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Polycarbonate lenses are more impact-resistant than plastic lenses
Polycarbonate lenses are thinner, more lightweight, and stronger than plastic lenses. They are one of the most impact-resistant lenses on the market, with polycarbonate lenses up to 30% thinner than standard plastic lenses. They are not likely to crack, chip, or shatter if they are dropped or hit with something. This makes them a good choice for children, active adults, and people who need safety eyewear.
Polycarbonate lenses are also a good choice for people with higher prescriptions. Their thinness helps them to accommodate strong prescriptions without adding too much bulk. Their lightness also helps them rest easily and comfortably on the wearer's face.
Polycarbonate lenses are a type of plastic that is commonly used in eyewear. They are more impact-resistant than other types of plastic lenses. They are also thinner and lighter than other types of plastic lenses. This makes them a good choice for people who want lightweight and durable eyewear.
Polycarbonate lenses do have some disadvantages. They are more expensive than plastic lenses and are more susceptible to scratches. They also have lower optical quality than CR-39 plastic lenses. However, their durability and thinness make them a popular choice for many people.
Trivex lenses, developed in 2001, have emerged as a competitor to polycarbonate lenses. They are similarly lightweight and impact-resistant, and sometimes offer greater visual clarity. However, they are typically not as thin as polycarbonate lenses and are more expensive.
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Plastic lenses are more scratch-resistant than polycarbonate lenses
Plastic lenses and polycarbonate lenses are two common lens materials for eyeglasses. While polycarbonate lenses are thinner, lighter, and more impact-resistant than plastic lenses, plastic lenses offer better scratch resistance.
Plastic lenses, also known as CR-39 ("Columbia Resin 39"), have been widely used in eyewear since the 1970s and are still a popular choice for prescription glasses. They are lightweight, durable, and less likely to break or shatter than glass lenses, making them suitable for active individuals. However, plastic lenses tend to be thicker than polycarbonate, which can make them less aesthetically pleasing and cause them to feel heavier on the face, especially with higher prescriptions.
Polycarbonate lenses, on the other hand, entered the market in the 1980s and quickly gained popularity due to their superior impact resistance. They are up to 30% thinner than standard plastic or glass lenses, making them a good choice for individuals with strong prescriptions. Polycarbonate lenses are also lightweight, sturdy, and transparent, making them suitable for both prescription glasses and safety goggles. They are often recommended for children, active adults, and those requiring safety eyewear.
Despite the advantages of polycarbonate lenses, they are more expensive and scratch more easily than plastic lenses. While polycarbonate lenses can be treated with scratch-resistant coatings, plastic lenses inherently provide better resistance to scratches. This makes plastic lenses a more cost-effective option for those seeking durable and economical eyewear.
In summary, while polycarbonate lenses offer advantages in terms of thickness, weight, and impact resistance, plastic lenses excel in scratch resistance, durability, and cost-effectiveness. When choosing between the two, it is important to consider factors such as prescription strength, lifestyle needs, and budget to determine the most suitable lens material.
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Polycarbonate lenses offer total UV protection, while plastic only offers partial protection
Polycarbonate lenses are a type of plastic lens that offers total UV protection. They block almost the entire UV spectrum, including UVA and UVB rays, meaning they provide far better protection for the eyes than any sun protection cream. This is because polycarbonate absorbs UV radiation and does not allow it to be transmitted through. For this reason, polycarbonate has become a popular choice for roofing in both commercial and residential construction.
Plastic lenses, also known as CR-39 ("Columbia Resin 39"), have been widely used in eyewear since the 1970s and are still a popular choice for prescription glasses. Plastic lenses are lightweight and durable, but they only offer partial protection from harmful UV rays. While plastic lenses are less likely to break or shatter than glass, polycarbonate lenses are ten times more impact-resistant than plastic, making them a safer option for children and active adults.
Polycarbonate lenses are also thinner and lighter than plastic lenses, making them a good choice for people with higher prescriptions. They are also a popular choice for safety eyewear, such as goggles, helmets, and sports eyewear. However, polycarbonate lenses are more expensive and more prone to scratches than plastic lenses.
To achieve 100% UV protection with plastic lenses, a UV coating must be added if you plan to wear the glasses outdoors. On the other hand, polycarbonate lenses offer total UV protection without the need for any additional treatments, making them a convenient and effective option for protecting your eyes from harmful UV rays.
In summary, polycarbonate lenses offer superior UV protection compared to plastic lenses, which only offer partial protection. This makes polycarbonate lenses an ideal choice for individuals seeking comprehensive UV protection, especially those who spend a significant amount of time outdoors.
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Frequently asked questions
Polycarbonate lenses are a type of plastic lens that first entered the market in the 1980s. They are thinner, lighter, and more impact-resistant than standard plastic lenses.
Yes, polycarbonate lenses are lighter than plastic lenses. They are also thinner and more impact-resistant. However, they are more expensive and scratch more easily.
Polycarbonate lenses are better than plastic lenses in some ways, but not in others. Polycarbonate lenses are thinner, lighter, and more impact-resistant than plastic lenses, but they are also more expensive and scratch more easily. Plastic lenses have higher clarity and are a more economical option.
Polycarbonate lenses are a good choice for people with higher prescriptions, children, and active adults due to their impact resistance. They are also good for people who need safety eyewear. However, they have lower optical quality than plastic lenses, so if you are looking for the clearest vision, plastic lenses may be a better option.
