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Showing posts from May, 2017

Whats Polarized glasses and Where it is use ?

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Why are Polarized glasses used for? Polarized glasses are mainly used for reducing the glare. Principle: A light wave is known to vibrate in multitude of directions. In general a light wave can be thought of as vibrating in horizontal and vertical planes. Vertical component of light helps human eye to see where as horizontal component creates glare. Light reflecting off a horizontal shiny surface such as car windscreen , sand, water, snow, and asphalt roads. Glare reduces visibility, makes  vision uncomfortable and painful. Polarised sunglasses are used to reduce glare.  Sunglasses contain polarizing filters oriented vertically to the frames so that they block horizontally polarised light. How are Polarised glasses made? Poly vinyl alcohol is heated and stretched to five times its natural length, making it even thinner. This lengthens PVA’s long chain molecules, causing them to align. The stretched PVA is then dipped in iodine solution. The iodin...

How to Care For Stroke Patient at Optometrist Level

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​ When it comes to optometrist care, stroke survivors are often an under-served population—especially when most of them have visual or ocular deficits. Stroke survivors with visual problems are often dead-ended in neuro-ophthalmology offices because the internists and cardiologists who refer them to neuro-ophthalmology don't know that ODs can treat stroke-related visual/ocular challenges. Plus, many optometrists are unfamiliar with how they can help stroke survivors. Stroke basics A stroke most common disability among adults. A stroke occurs when there is an interruption of the blood flow to an area of the brain. There are two types of strokes:   A n ischemic stroke , occurring when a blood clot blocks a blood vessel, and a hemorrhagic stroke , occurring when a blood vessel in the brain ruptures and causes damage.  Some strokes are preceded by brief episodes of stroke symptoms known as transient ischemic attacks (TIA), which are temporary interrup...

Vision Therapy Test (blog-2)

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Optometric Vision Therapy Most vision therapy performed is prescribed and monitored by an optometrist. For this reason, it is also called optometric vision therapy. What Vision Therapy Isn't It is important not to mistake vision therapy for self-help vision improvement programs advertised online and on television that promise you can "throw away your glasses" after performing a series of eye exercises. Effectiveness of visual training Strabismus/convergence disorder Amblyopia   Brain or optic nerve injury Available evidence shows that visual training in patients who retain some residual vision following a brain or optic nerve injury can improve their field of vision. Conditions not affected by visual training There is currently insufficient evidence to support the use of eye exercises for the following disorders: Learning disabilities-Dyslexia Age-related degenerative conditions such as macular degeneration and glaucoma  ...

What is Vision Therapy ?

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Vision therapy  is a doctor-supervised, non-surgical and customized program of  visual  activities designed to correct certain  vision  problems and/or improve  visual  skills. Vision Therapy is an effective treatment.  Vision therapy -a type of physical therapy for the eyes and brain - is a highly effective Non-Surgical treatment for many common visual problems such as lazy eye, crossed eyes, double vision, convergence insufficiency and some reading and learning disabilities. Many patients who have been told, "it's too late," or "you'll have to learn to live with it" have benefited from vision therapy. In the case of learning disabilities, vision therapy is specifically directed toward resolving visual problems which interfere with reading, learning and educational instruction.  Optometrists do not claim that vision therapy is a direct treatment for learning disabilities. What is involved in a Vision Therapy ...

OPTOMETRIST WANT YOU TO KNOW.

Even if you are one of the lucky few blessed with 6/6 vision, it’s still incredibly important to pay a visit to your local optometrist. An optometrist’s job goes beyond correcting vision – they can provide valuable information about your health and warn you about the serious consequences of not protecting your eyes. Here are a few things your optometrist wants you to know: Eye exams can detect more than visual acuity. You may be surprised to learn that  optometrists can see a lot more than vision problems during an eye exam . Several eye traits that individuals and optometrists should watch out for include: Iritis, which is linked to diseases such as Lyme disease or inflammatory in the eye, a possible indication of colon cancer Plaque in the eye, which can indicate carotid artery disease * Sunglasses should be worn no matter the weather.  It is crucial to  protect your eyes from the sun , just as you protect your skin with sunscreen. Early and prolonged exposur...

What Can An Optometrist Do Other Then Dispensing Ophathalmic Spectacles ?

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