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Contact Lens and Low Vision Aids
Contact Lens and Low Vision Aids
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Contact lenses are used for vision correction and are placed on the cornea of the eye. They do the same curative function that conventional spectacles or glasses do. However, in comparison, they are very light in weight and are, for all purposes, simply undetectable. Contact lenses help form the image on the retina of the eye by either converging or diverging the rays of light that are entering the eye. These have been a boon for individuals with vision disabilities. If you wish to get your eyesight checked for contact lenses, you can visit Spectra Eye today!

Contact Lenses

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Contact Lenses

Contact lenses are devices made of medical grade plastic materials used primarily for correction of refractive error. They arrange for a more active spectacle-free life, superior cosmetic acceptability, better and clearer images, lack of misting and a broader arena of view than spectacles. The contact lens clinic at Spectra Eye offers contact lens trial, fitting and dispensing for cases ranging from simple refractive errors to complex corneal surfaces such as post-transplant eyes and patients with keratoconus.

In the case of normal vision, the light from the object hits the cornea and focuses on the retina. Because of some refractive error, every so often, the light from the object does not focus on the retina, but either in front of it or behind it. To rectify this refractive error, contact lenses are used to focus on to the retina. The kind of contact lenses used depends on the category of vision impairment and how much refractive error is involved. How much the lens turns the light to focus on the retina is measured in diopters (D).

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Low vision aids

Low vision evaluation is a procedure that aids to evaluate the visual requirements of an individual with low vision. An ophthalmologist or optometrist, who specializes in low vision, implements a comprehensive visual function evaluation using special charts. After an in-depth examination, the ophthalmologist gives assistance on the following: Optimal use of vision, the low vision devices needed and their usage, the best adaptation to home, school, workplace and neighbouring environment.

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Congenital Glaucoma

Congenital glaucoma is a rare type of glaucoma that is present in some babies at birth. Glaucoma that develops during the first few years of life is called infantile glaucoma. Babies with congenital or infantile glaucoma generally have cloudy eyes that are sensitive to light and have unwarranted tearing. Symptoms might not develop until 6 months to 1 year after birth. If the issue is not identified early and treated, the kid might have severe vision loss and might go blind. Individuals between the age of 3 years and young adulthood can develop a similar kind of glaucoma called juvenile glaucoma.

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Spectra Eye Hospital has the largest variety of contact lenses available to suit your needs. Ranging from prescription lenses that can correct a wide range of conditions in the eye to colour lenses for aesthetic reasons, one can get the best quality contact lenses at Spectra Eye Hospital.

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FAQ

ABOUT CONTACT LENSES

It varies from person to person. May take 15 to 30 days to get used to it.
While contact lenses are safely used by millions of people every day, they do carry a risk of eye infection. Factors contributing to infection can include:
  • Use of extended-wear lenses;
  • Reduced tear exchange under the lens;
  • Environmental factors;
  • Poor hygiene.
While lenses can become dislodged, and may even get stuck under your eyelid, it's impossible for your lenses to get stuck entirely behind your eyes.
There is no age limit: babies can wear them, and so can seniors. Many eye care professionals begin to encourage contact lens wear at age 11 to 14. The real issue for teens is not age, but whether they are responsible enough to wear and care for contact lenses properly. Parents, teens, and their eye care practitioner must make this decision together
Contact lenses are a popular choice for many people who have problems with their vision. However, it can be a daunting task deciding on the right types of lenses when there are so many different products on the market.'Soft' and 'hard' contact lenses are the two main categories of lenses, but there are still a number of different options within these groups. This list of the most common types of lenses should help you decide which available products are the best for you and your eyes.
  • Soft contact lenses
  • Hard contact lenses
  • Multifocal Lenses
Yes, contact lenses that enhance or change your eye color cost more than regular contacts . The cost of colored contact lenses varies considerably, but generally, you can expect most disposable color contacts to cost at least 75 percent more than comparable non-tinted disposable contact lenses.
Contact lenses are very safe. Still, wearing contact lenses can damage your eyes if you wear them too long, fail to clean them properly or do not replace them as directed by your eye doctor.
Contact lens prescriptions and eyeglass prescriptions are not the same . They are significantly different because eyeglass lenses are positioned approximately 12 millimeters from your eyes, whereas contact lenses rest directly on the surface of your eyes.
Many people wonder if contacts cost less over time than conventional prescription glasses. The answer is somewhat complex and depends on your specific circumstances. On average, however, contacts tend to be a little more expensive than traditional eyeglasses.
It is easy to put contact lens; a little training is sufficient for patient.
Although contacts lenses are safe for kids but not recommended because usually kids can’t maintain the proper hygiene required for the contact lenses.
It doesn’t matter if contact lens inside out. And don't worry — you won't harm your eye or your contact lens if you put it oninside out. In most cases, you'll be able to tell almost immediately if a contact lens inside out. Typically, the lens will feel uncomfortable and will move too much when you blink. It also may move off the center of your eye or pop out
It doesn't happen often, but if an error was made in your contact lens prescription and you are wearing lenses that are too strong, too weak or otherwise incorrect, this could cause eye strain and headaches . If this is the cause, replacing the lenses with contacts of the correct power should eliminate your headaches.
No. Tap water contains micro-organisms which can contaminate the contact lenses and cause eye infections. There is a micro-organism called "Acanthamoeba" which is capable of destroying the cornea and can even lead to blindness. The resulting infection is known as Acanthamebic Keratitis. At best it is an extremely painful infection, so never take this risk.
You need prescription of doctor or optometrist.
Swimming with contact lenses should be avoided whenever possible to help prevent bacterial contamination of your eye. Swimming with contacts can result in eye infections, irritation and potentially sight-threatening conditions such as a corneal ulcer.
Eyeglasses offer many benefits over contact lenses. They require very little cleaning and maintenance, you don't need to touch your eyes to wear them (decreasing your risk for eye infections), and glasses are cheaper than contact lenses in the long run since they don't need to be replaced as often.
They do, however, function much like regular eye glasses—refracting and focusing light so that objects appear clearly. Since the lenses stick to the tear fluid on your eye surface, they move naturally with you.
There are two types of contact lenses:
  • Daily disposable contact lenses – use them once and then throw them away.
  • Reusable contact lenses – take them out and clean them at the end of each day, then replace them as directed by your optician.
Soft contacts are made of pliable hydrophilic ("water-loving") plastics called hydrogels. Hydrogels absorb significant amounts of water to keep the lenses soft and supple.
If your contact lenses cause a sensation of burning eyes, something is wrong. There are several possibilities, including:

  • Eye allergies
  • Sensitivity to preservatives.
  • Infection due to dirty contact lenses.
  • Dry eyes.
It is a personal choice, it is done for cosmetic purpose.

ABOUT LOW VISION

Low vision is the term used to describe significant visual impairment that can't be corrected fully with glasses, contact lenses, medication or eye surgery. It includes: ... Tunnel vision (lack of vision in the periphery) and blind spots are examples of visual field loss.
Low vision care can help make the most of the remaining vision that a visually impaired person has in order to gain back independence and increase quality of life.
Eye diseases or conditions can cause visual impairment. Some of the more common causes of low vision include:
  • Macular Degeneration.
  • Diabetic Retinopathy.
  • Retinitis Pigmentosa.
  • Amblyopia
  • Retinopathy of Prematurity (ROP).
  • Retinal Detachment.
  • Cataracts. 
  • Glaucoma.
  • Acquired (Traumatic) Brain Injury.
The device needed depends on a number of variables and varies even among people with same eye disease.
Known as a CCTV (Closed Circuit Television) or as a Video Magnifier, CCTV magnifiers provide low vision aid for a full range of visual needs, specializing in assisting individuals with macular degeneration, glaucoma, cataracts, retinitis pigmentosa, diabetic retinopathy, and other low vision causing eye diseases and conditions. The benefits of a CCTV magnifier are many, as the versatility provided allows for independence through visual magnification and technology. Depending on the video magnifier, duties such as reading the mail, books, writing, enjoying a crossword puzzle, connectivity to a computer and much more can be accomplished with the aid of this one low vision assistive tool.
A spectacle microscope is a pair of glasses that has a high-powered lens on one side and a clear lens on the other side.  The glasses have to be used monocularly (one eye at a time) because of convergence issues. Spectacle microscopes are typically used for reading or other near tasks because in order to work properly, the object must be held very near to the eye
If you work on a computer, use a Smartphone, watch TV, or simply go out in the sun, you are being exposed to high-energy visible (HEV) blue light. Too much blue light exposure can damage the eyes over time and even lead to vision loss. Today, more people are wearing blue-light-blocking lenses to protect their eyes from these potentially damaging rays.
A bioptic telescope comprises a miniature telescope that is mounted within a spectacle lens, positioned superiorly to the user’s visual axis and angled upwards. It is most suitable for those with a mild to moderate visual impairment.
Why do contacts burn?
You can buy it from eye hospitals or authorized dealers in a local store or online. Most often they require training to help you use them effectively.
Yes, The device used is called a bi-optic telescope, which is small and usually mounted in the top of the lens. The user can use the glasses normally or tip their head to read street signs, etc., with the telescope.