Blue Light Glasses Specialist

Alisha Poonawala, O.D. -  - Optometry

Pack Optical

Alisha Poonawala, O.D.

Optometry located in Fort Worth, TX

Blue light glasses offer you protection from harmful blue light rays emitted from digital devices. At Pack Optical in Fort Worth, Texas, skillful optometrist Alisha Poonawala, OD, offers solutions to help you lower your risk of eye damage from blue light and improve your ocular health. Blue light glasses are an advanced and innovative step you can take to protect your eyes. To learn more, schedule an appointment with Dr. Poonawala online or by phone today.

Blue Light Glasses Q&A

What is blue light?

Sunlight contains invisible ultraviolet rays and visible light rays. The visible light emitted by the sun includes a range of different colored light rays with differing amounts of energy. Sunlight contains orange, red, yellow, green, and blue light rays and varying shades of each of these colors, depending on the wavelength and energy of the individual rays.

Light rays on the red end of the visible light spectrum have longer wavelengths and less energy, and rays on the blue end of the spectrum have shorter wavelengths and more energy.

Like ultraviolet radiation, visible blue light has both benefits and dangers. As well as the natural sources of blue light from the sun, there are also man-made, indoor sources of blue light, including LED and fluorescent lighting, flat-screen televisions, computers, electronic notebooks, and smartphones.


While the amount of blue light emitted from these devices is a fraction of that emitted by the sun, people spend much more time using these devices, and the proximity of the screens to your face is also much closer.

Why should I protect my eyes from blue light?

More research is underway, but experts believe that the human eye isn’t very efficient at blocking blue light.

You might want to protect your eyes from excessive blue light exposure since it may increase the risk of macular degeneration. Blue light penetrates all the way to your retina, which is the inner lining at the back of your eye. Studies have revealed that too much blue light exposure can damage the light-sensitive cells in the retina and cause changes that can lead to vision loss.

Blue light can disrupt your sleep-wake cycle (circadian rhythm). It also contributes to digital eye strain because it isn’t as focused and the short wavelength, high energy blue light scatters more easily than other visible light, resulting in an unfocused visual ‘noise’ that reduces contrast.

What are blue light glasses?

Blue light glasses are specially designed to protect your eyes from the harmful effects of blue light. Dr. Poonawala can help you choose the right blue light glasses for you.


A variety of lenses are available, such as special glare-reducing lenses and anti-reflective coatings that block blue light from both natural sunlight and digital devices. There are also photochromic lenses that provide seamless protection from UV and blue light indoors. Computer glasses with yellow-tinted lenses are also available to block blue light and ease digital eye strain by increasing contrast.


Call Pack Optical or schedule an appointment online today to get your blue light glasses.