How they work
Polarized lenses block light rays that would normally enter your eyes after reflecting off of surfaces. The light that enters your eye after passing through a polarized lens has been filtered, allowing the wearer to see in a different way.
1. Reduce Glare, Improve Safety
On a sunny day, you may notice that objects in the distance appear hazy, or nearby vehicles are reflecting light in a way that is nearly blinding. A polarized lens removes the effects of glare by blocking reflections. This improves eye comfort and allows you to take in the view without squinting. Roadways and water sources are major culprits of glare, and can cause danger to drivers who may already struggle with vision issues. Glare can create a very uncomfortable eye health issue for people with sensitive eyes, and even cause a migraine in patients who are prone to developing them.
2. Water Sports
You may notice that outdoor enthusiasts such as fishermen and boaters love polarized sunglasses. The special material makes it easier to see into the water. Without polarized lenses, the water’s surface simply reflects everything around it. This obscures view into the water almost completely. Polarized lenses block this reflection and enable the wearer to see the contents of the water instead of the sky.
3. Reduce Eyestrain
Another nasty side effective of glare, eyestrain can be relieved with polarized lens wear. Squinting to see clear images stresses the eyes and creates uncomfortable eye health issues like redness, irritation, fatigue, and headaches. Polarized lenses neutralize this issue and allow eyes to feel more comfortable and well rested.
4. Better Vision
Wearing polarized lenses can reveal colors and images like never before. You will see crisply and cleanly, with a level of detail that may astound you. There are a few circumstances where polarized lenses are not appropriate, such as night driving, flying an airplane, downhill skiing, and viewing LCD screens. The majority of the population will find polarized lenses immensely helpful in improving the clarity and quality of their daytime vision. Ask your eye health provider if polarized lenses are right for you.
Do you have trouble with night-time driving? The new halogen headlights on cars are so bright that they often dazzle your vision. If you experience glare on your glasses, then you need anti-reflective coating on your spectacle lenses. Do you experience headaches or eyestrain when using a computer? A-R coating reduces reflections and eyestrain associated with computer use. Anti-reflective coating improves visibility by eliminating bright reflections on your lenses.
This is a very convenient type of lens that allows the wearer to focus on objects both at close range and in the distance through a single lens and eliminates the irksome need to frequently remove spectacles. This type of lens is designed to enable viewing of objects in the distance, at close range and in the intermediate distance with corresponding changes in power for each distance. Initially, these variations in power can, however, give the wearer uncomfortable feelings of swaying or distortion, or a sense of a narrow field of vision. (Almost all users quickly adapt and become accustomed to the variations in power). Since these problematic sensations of swaying, distortion or narrow field of vision become more pronounced the greater the power of the lens, it is important to start using this type of lens from the 40's before the additional power (presbyopic power) becomes too great. Once the additional power increases to a certain degree, it may be difficult to become accustomed to the lens and the process of adjustment may take some time.
Hi-Index is the thinnest possible material for patients who require a strong prescription. Hi-Index is a dense material that bends light more efficiently than plastic or polycarbonate. This means that a thin hi-Index lens can have the same prescriptions as a thick plastic or polycarbonate lens. The optical quality of hi-index is superior to polycarbonate. Patients concerned about getting “coke bottle glasses” should consider hi-index lenses because they can be made incredibly thin!
Polycarbonate is 30% thinner than plastic, it is light and ten times more shatter resistant than plastic. Polycarbonate is safer than plastic because of its shatter resistance. Polycarbonate is best for prescriptions between +/- 3.00 and +/- 5.50. For prescriptions above +/- 5.50, the optical characteristics of polycarbonate begins to decline.
Why is my vision suddenly blurry up close when I read? What is presbyopia? Why did my vision change when I turned 40?
Explore your options with your eye care professional and remember that for the best possible vision, ask for the best possible progressive multifocal lens.
Have you heard about the recent advances in photochromic lens technology? The newest Transitions lenses darken outdoors, but remain perfectly clear inside. That’s because Transitions lenses only darken in response to the ultraviolet rays from the sun. Transitions lenses will not darken indoors under artificial lighting. Still not convinced? Stop by our office and ask to see a sample of Transitions lenses.