Vision

A:

An individual can swim while wearing contacts, but it's best that he do so while wearing waterproof swimming goggles. Prescription swimming goggles are a good option for a swimmer who wants to reduce the chances of his vision becoming blurred and experiencing refractive errors.

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  • How Does a Blind Man See?

    Q: How Does a Blind Man See?

    A: Blindness is a broad term used to describe a wide array of visual limitations. Those who are blind see nothing at all. However, in some cases they might be able to experience flashes or flickering images of light and color.
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  • Why Do People Sleep With Their Eyes Open?

    Q: Why Do People Sleep With Their Eyes Open?

    A: People who sleep with their eyes open suffer from a medical condition called nocturnal lagophthalmos. This condition is a type of facial paralysis caused by bodily trauma, stroke, surgery or Bell's palsy. Nocturnal lagophthalmos is a malfunction of the orbicularis muscle in the eyelid. The condition may be temporary or permanent, according to optometrist Dr. Troy L. Bedinghaus.
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  • Why Does Eyesight Deteriorate With Age?

    Q: Why Does Eyesight Deteriorate With Age?

    A: Human eyesight deteriorates with age because the essential parts of the eye lose freshness and functionality in time and with extended use. Examples of issues related to decreased function of a specific part of the eye include problems with near-sight vision (otherwise known as presbyopia) and issues reading small text, which is the result of a loss of flexibility in the eye's lens. Age-related diseases can also cause damage to the retina and optic nerve, although age alone does not necessarily damage these parts of the eye.
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  • How Long Do Eye Floaters Last?

    Q: How Long Do Eye Floaters Last?

    A: WebMD states that eye floaters generally do not go away once they form, but do become less noticeable over time. If the floater is seriously affecting someone's vision, he or she should consult an optometrist.
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  • Why Is My Vision Blurry Sometimes?

    Q: Why Is My Vision Blurry Sometimes?

    A: According to WebMD, blurry vision may stem from a number of sources, including an eye injury, nearsightedness or allergies. Hay fever and indoor allergens may also cause blurriness in the vision. Dry eye, pink eye and foreign objects in the eye also cause blurriness.
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  • What Does the Cornea Do?

    Q: What Does the Cornea Do?

    A: As described by Healthline.com, the cornea's main function is to refract light entering the eye. St. Luke's Cataract & Laser Institute adds that the refraction of the cornea provides two-thirds of the human eye's focusing power.
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  • What Are Some Steps How to Improve Your Eyesight?

    Q: What Are Some Steps How to Improve Your Eyesight?

    A: According to Dr. Mao Shing Ni for The Dr. Oz Show website, some of the ways an individual can improve his eyesight are to eat the right foods, exercise the eyes and make sure the eyes get plenty of rest. Some doctors recommend massages as a way to increase the flow of blood to the eyes and acupuncture to strengthen vision, notes WebMD.
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  • What Is the Best Human Vision?

    Q: What Is the Best Human Vision?

    A: The very best human eyes have 20/8 vision, according to LiveScience.com. A person with 20/8 vision can see things as well from 20 feet away as most people can see at a distance of only 8 feet. This is the best vision possible with human eyes.
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  • How Long Do I Have to Wait to Wear Makeup After Having Pink Eye?

    Q: How Long Do I Have to Wait to Wear Makeup After Having Pink Eye?

    A: When infected with pinkeye, EyeSmart recommends waiting two weeks after completing a course of topical antibiotics before using makeup. If the pinkeye is caused by a virus, doctors do not prescribe eye drops, but two weeks is also the suggested waiting period before resuming the use of makeup.
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  • What Are the Main Functions of the Eye?

    Q: What Are the Main Functions of the Eye?

    A: The main function of the eye is to convert light into electrochemical impulses that the brain can interpret as visual images. The various parts of the eye perform different functions that contribute to this purpose.
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  • Can Cataracts Cause Headaches?

    Q: Can Cataracts Cause Headaches?

    A: Headaches are only a symptom of hypermature cataracts, a progressed form of cataracts that have become completely white, according to Medical News Today. At this point, sufferers may also experience inflammation and pain, and the cataracts need to be surgically removed.
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  • What Are Prism Eyeglasses?

    Q: What Are Prism Eyeglasses?

    A: Prism eyeglasses are prescription glasses that have a prism in the lens. The prism can be ground into the lens, or it can be a sticker stuck to the lens. The primary use of prisms in eyeglasses is for positional correction, convergence correction and double vision correction.
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  • Is It Possible to Change Your Eye Color?

    Q: Is It Possible to Change Your Eye Color?

    A: As of 2014, the only way to change eye color permanently is through the use of iris implants, which present serious health risks. A laser surgery is being developed that may work, and people can influence the perception of their eye color with clothing colors or colored contact lenses.
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  • Can You Swim With Contacts in Your Eyes?

    Q: Can You Swim With Contacts in Your Eyes?

    A: An individual can swim while wearing contacts, but it's best that he do so while wearing waterproof swimming goggles. Prescription swimming goggles are a good option for a swimmer who wants to reduce the chances of his vision becoming blurred and experiencing refractive errors.
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  • How Can You Get Colored Eye Contacts?

    Q: How Can You Get Colored Eye Contacts?

    A: You can get colored eye contact lenses from a number of online retailers, including Hollywood Color Contacts and FourEyez. The price of the contacts varies by retailer and quantity.
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  • How Can You Get a Free Eye Exam and Glasses?

    Q: How Can You Get a Free Eye Exam and Glasses?

    A: Vision USA and The Lions Club offer free eye exams or financial assistance to cover the cost of eye exams to qualifying low-income adults. EyeCare America offers free eye exams to senior citizens not otherwise covered. New Eyes, a non-profit organization, provides vouchers to qualifying individuals for prescription glasses.
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  • What Is a Substitute for Contact Solution?

    Q: What Is a Substitute for Contact Solution?

    A: There is no safe substitute for saline contact solution, according to All About Vision and Dr. Elliott Rosengarten. Some people use tap water or bottled water to clean contact lenses, but water carries microorganisms that may lead to serious eye infections. Baby oil and fruit juice are other bad choices.
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  • What Alternative Can Be Used in Place of Contact Lens Solution?

    Q: What Alternative Can Be Used in Place of Contact Lens Solution?

    A: There is no safe alternative to commercial contact lens solution. Saline solutions, distilled water or do-it-yourself salt solutions do not disinfect contact lenses and can lead to irritation, infection or permanent damage.
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  • What Is the Best Way to Clean Plastic Eyeglass Lenses?

    Q: What Is the Best Way to Clean Plastic Eyeglass Lenses?

    A: Heidi Mitchell explains in the Health & Wellness section of The Wall Street Journal that the best way to clean plastic eyeglass lenses is to run them under warm water and create a lather on the lens by putting a small drop of dishwashing detergent on the tip of the fingers. After lathering the lens carefully, they must be rinsed with warm water and then dried with a clean, soft cotton cloth.
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  • What Are Progressive Contact Lenses?

    Q: What Are Progressive Contact Lenses?

    A: Progressive contact lenses, also called bifocal or multifocal lenses, are contacts that combine prescriptions for farsightedness and nearsightedness into one lens. There are several different methods for combining different powers into one contact lens. The human eye adapts to shifting between multiple powers, so it can focus on all distances.
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  • What Causes Eyeglasses to Fog Up?

    Q: What Causes Eyeglasses to Fog Up?

    A: Eyeglasses fog up when they are cooled below the dew point and encounter warm, moist air. As they cool, water condenses out onto the surface of the glasses, creating the fogging effect. The same effect creates drops of water on the outside of cold beverage glasses.
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