Vision

A:

To pick eyeglass frames, look for frames that balance the shape of your face, and pick frames with flattering color, pattern and proportion. Your eyes should be centered in the frames. Try on many different frames before making your choice.

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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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  • 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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  • 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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  • 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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  • 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 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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  • 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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  • 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 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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  • 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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  • Does base curve make a difference in contact lenses?

    Q: Does base curve make a difference in contact lenses?

    A: The base curve of contact lenses influences the overall fitting and comfort, as stated by a recent paper published in the Journal of Optometry. The material that the contact lenses are made of will influence the base curve range that is considered most acceptable. For example, in Senofilcon A contact lenses, base curves that are within the range of 7.80 mm to 8.80 mm exhibit acceptable fitting characteristics.
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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 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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  • How do they make eyeglasses in one hour?

    Q: How do they make eyeglasses in one hour?

    A: Vision specialists make eyeglasses quickly by entering the prescription into a computer, cutting the lenses and mounting the lenses into the frame. The key for receiving the glasses at retail vision stores within about an hour is to obtain the prescription that starts the production process.
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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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  • What are some tips for removing contact lenses?

    Q: What are some tips for removing contact lenses?

    A: Before removing contact lenses, hands should be washed thoroughly. Do not insert a contact lenses standing over an unplugged sink, since dropping a lens can result in it going down the drain. Prepare the lens case with solution before the lens is removed, always beginning with the same eye.
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  • How do you take contacts out?

    Q: How do you take contacts out?

    A: To remove a contact lens, wash hands and use the index finger of the non-dominant hand to lift the eye’s upper eyelid. At the same time, use the middle finger of the dominant hand to pull the lower lid downwards. Next, use the index finger and thumb to gently remove the contact.
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  • How do polarized sunglasses work?

    Q: How do polarized sunglasses work?

    A: Polarized sunglasses are coated with a vertical film that filters out the horizontal light waves reflected off of smooth flat surfaces, such as roads and water. These reflected waves are commonly called glare.
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  • How do you put contacts in small eyes?

    Q: How do you put contacts in small eyes?

    A: If it seems as if your eyes are getting smaller, you may be squinting because your eyes are too dry. Use a moisturizing solution with your contacts. When inserting contacts, do it without stretching the eyelids for the most comfortable experience.
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  • How do night vision glasses work?

    Q: How do night vision glasses work?

    A: Night-vision glasses work by capturing tiny amounts of light, some of it from the infrared portion of the light spectrum, and amplifying it in order to create an image that is more easily observed. Some systems may also utilize thermal imaging technology, either alone or in concert with light amplification.
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