Acrylic, plastic and CR39 lenses are widely used in eyewear. Each type of lens has its own unique characteristics and advantages.

Acrylic lenses are highly durable and resistant to scratches. They also offer great clarity and excellent UV protection. Acrylic lenses are lightweight and can be easily tinted to various shades. These lenses are an affordable choice, making them a popular option for those on a tight budget.

Plastic lenses, on the other hand, are less expensive than acrylic lenses and are also lightweight. They provide good impact resistance and are ideal for those who have an active lifestyle. Plastic lenses are available in various colors and are suitable for prescription glasses, sunglasses, and safety glasses.

CR39 lenses are made from a special type of plastic that is highly impact-resistant and provides access to a crystal-clear vision. These lenses are scratch-resistant and come with UV protection. CR39 lenses provide excellent optics and can be customized to suit the requirements of the individual wearer. They are perfect for those who need prescription glasses with high-quality optical performance.

In conclusion, all three types of lenses have their unique benefits and features. When choosing a lens, it is important to consider factors such as your budget, lifestyle, and visual needs. No matter which type of lens you choose, it is essential that you get the right prescription and that you properly care for your glasses to ensure their longevity.