What is the difference between glasses and spectacles

Glasses or eyeglasses are used to help a person see better. They are usually made of a metal or plastic frame and two lenses that improve vision. Goggles are used to protect the eyes from dust, debris, water, or other things that can harm the eyes. Goggles usually have a rubber or plastic frame with a strap that fastens around the back of the head, and often plastic lenses, and they fit closely to the face creating a seal so nothing can get in the eyes. Some kinds of goggles are swimming goggles, safety goggles, and ski goggles.

Sunglasses are used to shade the eyes from sunlight. They are usually made of a plastic or metal frame and two lenses that are darkened to filter out light. Sunglasses can have prescription lenses like eyeglasses, but they can also have lenses that are not for correcting vision.

Learner's Dictionary mobile search. Learner's Dictionary. Ask the Editor. Sunglasses can be polarized or non-polarized. Polarized lenses contain a special filter that helps in reducing the glares and thus improve the comfort and visibility. The light that is reflected back from the flat surface is horizontally polarized and the lens of glares are vertically polarized and thus they are able to block the glare.

Spectacles have been evolved from reading glasses, and these reading glasses are supposed to be appeared in Italy for the first time in the year These reading glasses were designed to help the elders in reading as due to age their vision had got blurred. This was a boon for mankind and thus got popularized very soon. Today spectacles and reading glasses are often used interchangeably, however eyeglasses used to denote the eyewear with no side bars whereas spectacles referred to frames with sidebars.

The lens of spectacles are made from a solid material like glass or plastic. The lens should be transparent and should be capable of bending or refracting the light. The specs work on simple logic: - lens diverges or converge the rays of light and it does that to a sufficient degree to allow the eye to get the perfect vision. Cylindrical lens: - used for the correction of astigmatism caused due to imperfection in the curvature of cornea.

Therefore, sunglasses and specs are very different to each other. Sunglasses are used to protect the eyes from rays of sun or intense light, whereas spectacles are used to correct the defective vision. Another important difference between them is that- unlike lenses of spectacles, all sunglass lenses are tinted. Hard lenses. Soft lenses. Developments in Eyewear Whatever you call them — glasses, spectacles or specs — eyewear has come a long way from the rudimentary pair of glass lenses first invented.

Spectacles Still Beating the Opposition The opposition being contact lenses and laser eye surgery. Leave A Comment Cancel reply. Free resources. Information packs. About us. Most popular. Eye tests Keratoconus Dry eye test Myopia treatment Designer glasses. Be social. Your vision, our passion. Your vision is your most precious sense. We can help protect it.

About this guide. The Eye Practice has put together a guide to help you understand: What diagnostic tests are performed at an initial consultation. What is typically involved in a successful contact lens fitting for keratoconus.

What costs are involved in initial consultation and contact lens fitting and delivery. This handy guide will ensure you understand: Why soft lenses are not generally successful in managing keratoconus. Tips for adjusting to your new glasses. Which occupations these lenses may not suit. Download our guide to discover: What are the optical options glasses and contact lenses? What about pharmacological methods such as atropine eye drops?

How do the methods compare in terms of myopia control? The Eye Practice has put together a guide to help you understand: How most eye drops can make red eyes worse. Who you should you consult if you have red eyes. What measures you can take at home and at work to reduce red eyes. What astigmatism is, and if you have it? About this eBook. The most successful strategies in reducing eyestrain, dry eye and blue-light exposure caused by digital screens.

Learn more about the causes, diagnosis and treatment of dry eye, including: The 5 things you should know about your dry eye treatment. The best home remedies for dry eye. Case studies on real dry eye patients. You will learn about: Myopia and its triggers. The most successful techniques for slowing myopia. Atropine eyedrops and ortho-k contact lenses. This eBook will ensure you understand: The 3 classic mistakes people make in choosing a frame. Selecting the perfect pair of sunglasses.

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