In this digital era, the majority of workers are spending over four to eight hours a day working and facing their computer screens. This has highly contributed to the late sight problems that have led to an increase of adjustable glasses users. The Variable focus lenses have played a great role in making sure your sight and visions are clear. Variable focus lenses are lenses that are mainly used in the office to provide clearer vision. A variable focus lens can also be referred to as Computer progressive Lenses.
Areas of focus
The variable focus lenses have multiple areas of focus with a mid-range located at the central part of the lens. This allows the user to adjust the eyeglasses to rectify errors such as presbyopia and to have a variable focus in distance coverage or prescription. The variable focus lenses are modified in a way that the user can easily change the eye position and view through a potion that has the focal power in correspondence to the distance. It simply means viewing from the top of the lens to see a long-distance object and viewing a short distance object through the bottom lens.
Types of Variable Focus Lens
Every single progressive lens differs depending on the design, size, brand, and function. The lenses exist up to 6 types namely Near Variable Focus, Standard progressive, Short Corridor, Ground-view Progressive, Premium Progressive, and Transition Progressive lenses. A majority of people use adjustable glasses, but they don’t know how to go about adjusting the progressive lens.
1. Near Variable Focus Lens
This lens is also known as the office or computer progressive lens. It is designed to help in the office with the main intention to offer a clear vision to the user at 16 inches to 6 feet. This lens is for people who need to experience things closer like artists, dentists, mechanics, and editors. It is advised for people who use computers more than four hours a day and tend to have a visual syndrome or visual fatigue.
Pros- The lens has adjustable glasses that help in better posture positioning and holding the head in a neutral natural position.
Cons: These computer glasses are only dedicated to serving you while working. You will have to continue using your regular glasses on other activities.
2. Premium Progressive Lens
Also referred to as the wave-front technology, the lens provides free and wide reading area distortion. Premium progressive lenses are normally 100 percent digitalized and computer designed that ensures eyes work together and assures clear vision.
Pros: The lens is well-designed, unique, and attractive. The lens fits perfectly on your desired adjustable glasses, optician’s prescription, and eye inspection. The lenses are easy to adapt to, and they are prone to swinging and falling.
Cons: This type of lenses is more expensive compared to other lenses and has a higher co-pays tendency and vision plans. They must be bought from an optician’s office to prescribe and take the measurement for special manufacturing.
3. Standard Progressive Lens
This is a variable focal lens that is best for people who choose to have trifocals and bifocal alternatives. This lens gives you the ability to read at a wider reading area but with a medium-sized frame that allows easy transitioning of distance and clear vision to read.
Pro: This lens is preferred by the majority of people as it is very affordable, simple, and unique. The lens appears in different sizes, brand names, and designs.
Cons: When the lens is being manufactured, the reading power may be withdrawn especially if you chose a short frame. This may limit your purpose of purchasing the lens.
Protective and Cleaning Measures for Lens
Cleaning comes handy in making sure that your lenses or glasses are well taken care of. The most important thing is to ensure that your hands are clean and safe. Rinse your lens with clean lukewarm water and add little liquid dish washing soap. Rinse your lens and shake them gently to get rid of excess water. The final stage is to gently dry the lens with a sparkly clean cloth. When coming from hot weather outside, save the lens coating by rinsing with cool water. Replace the nose pads when they go yellow and use an ultrasonic cleaning device.
Don’t touch, clean or bring your lens closer to alcohol to avoid weakening the frames and damage lenses. Always keep the lenses in their case, avoid wearing the lenses on your head, and keep the lens cleaning cloth clean by cleaning it weekly. Cleanyour glasses when they are wet and make use of a well leveled bottled eyeglass cleaner, “safe for coated lenses.”
No one wishes to have eye problems or issues, but, when disaster strikes, you should seek proper medical advice on how to go about it. Lenses and glasses do not only improve your vision but also boost your personality. Choose favorable lenses that will save your vision, those that are beautiful, easy to maintain, elegant, and affordable. The decision on what lens to use should not be taken haphazardly but through proper medical advice.