Transitions® Drivewear lenses

T A McMahon Optometrists recommend Transitions® Drivewear lenses especially for driving and playing golf.  Daytime light and weather conditions constantly change while driving and so do Transitions Drivewear sun lenses. Their NuPolar® polarization removes glare off the road and car hood. Transitions® photochromic technology adjusts the color and tint of the lenses as light conditions change, providing ideal color and clarity for driving:

  • In low light or overcast conditions, the lenses are a green/yellow color that provide high contrast and minimize glare
  • Behind the windshield, the lenses activate to a copper color enhancing color recognition and depth perception
  • In bright outdoor light, the lenses activate to a dark red-brown filtering excess light to provide maximum comfort
  • Lenses that work with most prescriptions and frames

A polarising lens manages reflections and suppresses glare from any flat or shiny surface, resulting in a cleaner and sharper image. For example, polarising lenses eliminate glare to make water appear more transparent, enabling one to see fish and rocks below the surface. Similarly, polarising lenses will provide better definition for use when driving and during sport, removing dazzle and reducing eye fatigue.

Polarising lenses are a great alternative to regular sunglasses lenses

Sunglasses reduce the amount of light entering the eyes but polarising lenses reduce the amount of annoying glare.

Polarising Lenses can be used in prescription glasses, sunglasses and goggles, ideal for travel, urban fashion, golf, cycling, biking, shooting and other sports, including watersports.

In sports and other outdoor leisure activities we react to what we see. We see by virtue of the light that enters our eyes. Without good sunwear, brightness and glare will diminish our best efforts. Glare results in a loss of visual performance, which is produced when an object or light source in the field-of-vision is brighter than the amount of light to which the eyes are adapted. Most tinted lenses will provide some absorption to dampen brightness, but only a polarised lens can effectively eliminate blinding glare.
Light is made up of waves travelling in different directions. Vertical light is useful to the human eye; it helps us see. Horizontal light, however, simply creates glare. Glare is concentrated light reflecting off a horizontal shiny surface, such as a car windscreen, sand, water, snow or asphalt roads. It reduces visibility and can make it uncomfortable, painful and even dangerous to carry on driving, cycling, skiing or just sunbathing.
Regular non-polarized sun lenses indiscriminately filter all light, whether it is horizontal or vertical. Glare is dampened, but not eliminated. More importantly, by filtering all components of light, visual acuity is diminished. On the other hand, polarised lenses allow in the vertical component of light, which is preferred for clear vision, while eliminating the easily scattered and skewed horizontal component of light. Vertically aligned light is preferred, because it respects the natural tendency of the visual system to focus on the vertical component of an image.
The glare of the sun on the sea and other water surfaces is highly polarised. Indeed, the glare can be almost completely horizontally polarised, depending on the height of the sun. In addition, all reflections from objects above water are partially polarized. These include clouds and even the sky (the reflected sky gives most of its blue colour to the sea).These are examples of polarisation by reflection. Although the light from the sun is not polarised, it can be separated into two polarised components that are reflected and transmitted in different amounts by the surface of the water. More of the horizontal component will be reflected than the vertical component, thus partially polarising the reflected light. With polarised sunglasses they will stop the glare and make the sea appear more transparent, enabling you to see fish and rocks below the surface.
Polarised sunglasses help when driving a car by reducing those bright reflections of the sun on the cars ahead. They tend to be horizontally polarised, thus perfect for vertically polarised sunglasses. The reason is that the surfaces you see on the car in front of you (the back window, the rear door, and even the roof) are slanted towards you, while the sun will be more or less aligned in the vertical plane through both cars. Polarising lenses will provide higher definition vision for driving, remove dazzling effects and reduce eye fatigue.

 

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