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Frequently Asked Questions
1) What is astigmatism? How can I correct it?
Astigmatism arises when your eye is slightly rugby ball shaped as compared to normal spherical. This can be corrected by either wearing glasses with your prescription or Toric contact lenses

2) What is the benefit of Progressive lenses over Bifocals?
Progressive lenses incorporate three basic areas of visual focus. The Distance, The Inter-mediate and the Near whereas Bifocals allow you distance and reading vision only. With the advent of Computers, the Intermediate vision has become paramount in day to day lifestyles. New Progressive lenses (Form fit Wave-front design) maps out all the points on your visual axis and reduces strain completely. It is a beautiful innovation for prolonged use.

3) Why do I keep seeing spots / cobwebs in front of my eyes?
These are called ‘floaters’ and they generally appear to be like  cobwebs or thread-like structures. They are small semi- transparent or cloudy specs or particles that appear in various sizes and move with where you look at, they follow your line of vision / gaze and as soon as you try to look at them they dart/move away. These floaters are generally not harmful but may result in the deterioration of the vitreous humor (a clear- jelly like substance that fills most of the inside of your eye-ball) due to ageing. If these spots suddenly increase in number and size, come and see your optometrist, as it could be an indication of some serious problem.

4) What are the different type of materials use in spectacle Rims?
Different eyeglass frame materials greatly expand your options for a new look. Ask for advice about variety in colors, durability, lightness, favorite brands, hypoallergenic materials, uniqueness and price.

Plastic
Extremely popular and versatile, these are available in all the colours of the Rainbow with the most robust and good looking is the Zyl  material (zylonite, or cellulose acetate). Cost-effective and Creative and extremely lightweight. Particularly popular right now are laminated zyl frames that have layered colors. Look for light colors on the interior sides, which can make your eyewear "disappear" from your visual field when you wear them. An all-black frame, on the other hand, is visible at all times on both interior and exterior sides. These also come as  cellulose acetate propionate, a nylon-based plastic that is hypoallergenic and has more transparency.

Metal:
Monel — a mixture of any of a broad range of metals — is the most widely used material, its malleability and corrosion resistance are pluses. However these tend to react with many people’s skin-chemistry.
Titanium -  titanium is a silver-gray metal that's lightweight, durable, strong and corrosion-resistant. It has been used for everything from the Gemini and Apollo space capsules to medical implants such as heart valves.
Titanium eyewear can be produced in a variety of colors for a clean, modern look with a hint of color. And they're hypoallergenic.
Beryllium - a steel-gray metal, is a lower-cost alternative to titanium eyewear. It resists corrosion and tarnish, making it an excellent choice for wearers who have high skin acidity or spend a good amount of time in or around salt water.
Stainless steel - frames are another alternative to titanium. Qualities of stainless steel frames include light weight, low toxicity and strength.
Flexon  - is a titanium-based alloy. This unique and popular material is called a "memory metal": frames made of Flexon come back into shape even after twisting, bending and crushing. Flexon frames are lightweight, hypoallergenic and corrosion-resistant.
Aluminum  - are lightweight and highly corrosion-resistant, nonferrous material.

Unusual Frame Materials
Want a distinctive style?  Try eyeglass frames or design accents made from these materials.
Wood, bone and buffalo horn frames usually are handmade, one-of-a-kind pieces. Wood and bone, though stiffer, less adjustable and much more expensive than other frame materials, are appealing because of their unique beauty. Buffalo horn frames have an elegant look and warm to your body temperature; they can feel unlike any other frame you've ever worn before.

Semi-precious or precious stones and crystals are sometimes used as accents in frames, especially in the temples. Popular choices are onyx, turquoise and Swarovski crystals, but even diamonds can be used, for a luxurious touch.

5) What different type of lenses are used in spectacle Rims?
  • CR-39 Plastic lenses – Very commonly used throughout the world for it’s lightness, clear vision and availability. However, these tend to scratch rather quickly and can last for about one year if treated properly. They are available in mid-Index, High Index and super High Index.  They are also available with full Anti Reflective coatings and scratch resistant coatings.
  • Polycarbonate & Trivex Lenses – Best for ‘eye-safety’ , these are thin and 10 times more impact resistant than plastic or glass lenses and offer 100% protection from the sun’s harmful UV light. These therefore make an excellent choice for children glasses.
  • Transitions Lenses -  Photochromic lenses are clear (or nearly clear) indoors and darken automatically in response to sunlight outdoors. They also protect your eyes from 100% of the sun's harmful UV radiation. One limitation of Transitions and other photochromic lenses is that they don't darken adequately inside a vehicle for driving in sunny conditions. This is because they require exposure to the sun's invisible UV rays to activate the darkening process, and most car and truck windshields block UV radiation.
  • Polarized Lenses
  • Drive Wear Lenses
  • Glass Lenses  -  A rarity nowadays mainly due to safety reasons and also because of it’s weight, these lenses are slowly seeing their exit from the optical scene. However, they are still available in all indices and come with/without Anti Reflective coatings. The thinnest lens available (1.90 Ref. Index) is in Glass and people with very high Minus power occasionally ask for these.

All the above lenses are available in single vision and Progressive lenses. Some are also available in the Bifocal range