Asked in Human Papillomavirus (HPV)
Human Papillomavirus (HPV)
What if your lens of your eyes are a bit too strong and your eyeball is a bit too long?
Why is my eye watering?
Your eyes are probably watering due to harsh environments, strong winds, rain, etc... But (like me) if you wear glasses or contact lens your eyes can easily be irritated Causing them to water. Now this is either caused by overusage or pushing on the contact against your eye causing it to bend and scrape against your eyeball. This will likely cause your eye to start watering trying to get the bent or dry contact lens out of your eye. If the...
Asked in Eyes
How do lenses help short sighted?
Short sighted people are not helped by lenses or anything else. Except the consequences of their short sightedness. I think you mean near sighted people. The eye is a lens and focal point system. The focal length of the eye can be manipulated by flexing muscles in the eye socket to change the distance between the lens and the back of the eyeball. A near sighted, or even a far sighted, person has an eyeball that is too long or too short...
Asked in Health
What are the causes of long and short sighted?
Farsighted or Nearsighted is what I believe you mean. The cause is the shape of the eyeball and where the lens focuses the image it recieves. Eyeglasses merely refocus the image at the proper point. Lasik (or other procedures) simply reshape the lens for optimum vision. ...
Asked in Health, Eyes, Presbyopia
What is difference between myopia hyperopia presbyopia and astigmatism?
Myopia: nearsightedness or rather distant objects appear blurry resulting from an eyeball that is too long Hyperopia: farsightedness or rather near objects appear blurry while distant objects are clear, resulting from an eyeball that is too short aka "lazy lens" Astigmatism: images are blurry, resulting from the eyes focusing on lines not points, also due to unequal curvatures of the cornea or lens Presbyopia: a decrease in near vision Source Introduction to the Human Body by Gerard Tortora and Bryan Derrickson ...
What is computer lens?
Computer lens are glasses for preventing damage to the eyes due to working at a computer for long hours. Computer lens may also refer to the device that emits the laser beam in optical disk drives. ...
Can you get sunburnt eyes?
Eyelids - yes, eyeballs - no, when the eyeball starts drying or you look at the sun your nervous system signals the brain to automatically squint, tear, and blink to keep the eyeball moist and lubricated. You would burn your retina rendering yourself blind long before sunburning the outer eyeball tissues. That is why you shouldn't stare directly at the sun for long periods of time or during an eclipse. ...
Asked in Medical Terminology
What is the Medical term meaning the eyeball is too long from front to back?
When the eyeball is not round, whether it be too long, or too short, it is called astigmatism. ...
How can concave lens correct nearsighted vision problems?
A nearsighted person can see nearby things clearly, but objects at a distance are blurred. The eyeball is too long, so the lens focuses the image in front of the retina. To correct this, a concave lens in front of the eye spreads out light rays before they enter the eye. As a result, the image forms on the retina. ...
Asked in Science, US Army, US Air Force
Why does the eyes become smaller when you wear glasses?
This happens when you wear a concave lens for curing short sight. If you wear convex lens in case of long sight, then eyes would look bigger than the original. Both are so dominant if the power is high. If we wear low power glasses then no such considerable change in the size of the eyes. ...
Asked in Eyes, Human Anatomy and Physiology
What happens to your eyes if you stare at bright lights for long periods of time?
You will suffer what are called 'eye floaters' - small specks or clouds moving in your field of vision varying in different shapes and sizes which are within your eye's 'vitreous' (known as transparent jelly like tissue filling the eyeball behind the lens) humour. If you have never suffered these often then it should subside after a while of staring in the bright lights. ...
Asked in Primates
What are a tarsiers unique characteristics?
Tarsiers have incredibly large eyes--in some cases, the eyeball is larger than the brain. They also are capable of rotating their head like an owl because their eyes are so large that they can't rotate in their sockets. Tarsiers also have long legs for leaping. ...
Asked in Health, Eyes, The Difference Between
What is the difference between myopia farsightness and nearsightness?
Myopia is when nearby objects are clear but far away objects appear to be blurry to the person. It is caused by either the eyeball has grown too long or the cornea is too steep. Hyperopia is caused by an imperfection in the eye, usually if the eye lens is not round enough or if the eyeball is too short. Close up objects are blurred and far away object are clear. ...
Asked in Hair, Teen Dating
Short hair brings out the eyes what does long hair bring out?
Long hair has a strong influence on your whole body appearance and figure, depending on how exactly you wear it. ...
Asked in Earth Sciences, Engineering
What is a convex and a concave lens?
CONCAVE LENS : lens that atleast possess one end inwards is called as concave lens. CONVEX LENS : lens that atleast possess one end outwards like the exterior of the sphere is called convex lens. According to the medical values convex lens are used for long sight vision problem and concave lens for short sight vision problems. ...