UV blocking contact lenses are designed to protect the eyes from the harmful effects of ultraviolet (UV) rays. These rays can cause damage to the eyes over time, leading to conditions such as cataracts, age-related macular degeneration, and even cancer.
UV rays are a type of electromagnetic radiation that comes from the sun. They are divided into three types: UVA, UVB, and UVC. UVA and UVB are the most harmful to the eyes and can penetrate the cornea and lens of the eye, leading to damage over time. UVC rays are absorbed by the Earth's atmosphere and do not reach the surface.
To protect the eyes from the harmful effects of UV and blue light, contact lens manufacturers have developed specialized lenses that can block these rays. Here are some of the products available in the market:
- Acuvue Oasys with Transitions Light Intelligent Technology: These contact lenses are designed to adapt to changing light conditions, darkening in bright sunlight, and lightening indoors. They also block 100% of UVB and 96% of UVA rays.
- Alcon Dailies Total 1: These daily disposable contact lenses are designed to block 100% of UVB and 96% of UVA rays.
- Ciba Vision Air Optix Night and Day Aqua: These extended wear contact lenses are designed to block 100% of UVB and 96% of UVA rays.
It is important to note that while these contact lenses can help to block UV and blue light, they should not be used as a substitute for other forms of eye protection, such as sunglasses. It is also important to consult with an eye care professional to ensure that these lenses are the right fit and comfort for your unique needs.
Contact Lenses for Blue Light Protection
Blue light is a type of light that is emitted by electronic devices, such as smartphones, tablets, and computers. It has a short wavelength and high energy, which can cause digital eye strain and disrupt the natural sleep-wake cycle. Prolonged exposure to blue light can also contribute to retinal damage over time.
Below are a range of contact lenses that work to block blue light:
- CooperVision Biofinity XR: These contact lenses are designed to block UV rays and also have a special coating that filters out blue light.
- Biofinity Energys: This is a monthly disposable contact lens that blocks blue light and helps reduce digital eye strain.
- Acuvue® Oasys with Transitions – ACUVUE® OASYS with Transitions™ filters bright light by blocking up to 15% of blue light indoors and up to 55% outdoors.