The infographic below sums up what makes Optico stand apart in the world of care for sensitive optics. We specialize in cleaning products for lenses, touchscreen displays and aerospace avionics. Read on to learn more!
When buying a new pair of glasses you will first decide on a spectacle frame and the type of lenses suited to your needs, under the guidance of your optometrist. You will also be offered various coatings which will enhance the performance and appearance of the lenses as well as prolonging their life.
Types of Coatings
Anti-Reflection (AR) Coating
This is applied to reduce the bright reflections which occur on the surfaces of the lenses (back and front) and also within the lens on the internal surfaces. It has the effect of reducing glare caused by these reflections whether they be from room lights, computer screens or on-coming cars at night. More light can then pass through the lenses into the eyes, so increasing contrast and making vision sharper. The lenses are virtually invisible to the onlooker making the eyes more visible, but the main benefit is that wearers will find their eyes less strained at the end of the day.
Anti-reflection coated lenses do, however need more regular cleaning. This is not because they get any dirtier than uncoated lenses, as is a common belief, it is because smears and dirt are much more apparent as there is no glare to hide it. Nowadays good quality coatings include a hydrophobic (water-repellent) layer and an oleophobic (grease-resistant) layer, making them easier to clean and keep clean. Other factors such as improper cleaning, extreme heat and certain chemicals can cause an anti-reflection coating to scratch, crack, craze or peel. But all in all, if you follow advice on proper glasses care, your coating should last at least as long as your frame.
This is an invisible silicone-based layer applied to the back and front of lenses to prevent everyday hair-line scratches. It is highly recommended for anti-reflection coated lenses. It is scratch-resistant, not scratch-proof, so it will not prevent deep scratches from sharp objects.
A UV coating, also invisible, is applied to lenses to protect the eyes and orbits from the sun’s harmful rays which can cause cataracts, macular degeneration and skin cancer.
Experiments have shown that coatings have a weakening effect on lenses, making them fracture more easily. However this is not usually a problem in normal day-to -day use unless lenses come into contact with sharp or pointed objects or high-speed missiles. (Clin Exp Optom 2006 March)