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Why eyesight disorders can be corrected by wearing glasses?

Nearsighted individuals cannot clearly see things that are distant. This happens because the light rays come into focus in front of the retina. Farsighted individuals have the opposite problem. The shape of their eyes causes the light rays to come into focus behind the retina, causing things that are near to them to be out of focus. Some people have blurry vision due to an astigmatism, or a condition where the curvature of the eye is irregular, creating a second focal point within the eye. All three of these common problems can be corrected with glasses. Eyeglass lenses are curved pieces of glass. The curvature of the lens bends the light rays as they approach your eye. This helps the rays focus on your retina, instead of behind or in front of it.

What is the difference between asian eyes and caucasian eyes?

The difference between the asian eyes and caucasian eyes is subtle. There exists the difference in the eye color. As we know, the asian people own the black eyes. And the caucasian people own the blue or brown eyes. And the caucasian eyes are more attractive which look more charming.

What can I expect during an Diabetic Eye Exam?

Yes, it is different from regular eye exam, Eye exams for people with diabetes can include: Visual acuity testing. Visual acuity testing measures the eye's ability to focus and to see details at near and far distances. It can help detect vision loss and other problems. Ophthalmoscopy and slit lamp exam. These tests allow your doctor to see the back of the eye and other structures within the eye. They may be used to detect clouding of the lens (cataract), changes in the retina, and other problems. Gonioscopy. Gonioscopy is used to find out whether the area where fluid drains out of your eye (called the drainage angle) is open or closed. This test is done if your doctor thinks you may have glaucoma, a group of eye diseases that can cause blindness by damaging the optic nerve. Tonometry. This test measures the pressure inside the eye, which is called intraocular pressure (IOP). It is used to help detect glaucoma. Diabetes can increase your risk of glaucoma.

Can eye strain cause facial pain？

If the eye pain cause facial pain, then it is probably that you get conjunctivitis or some kind of nervous system disease. If so, you should go to the hospital to have an examination so as to find out the exact reason for your eye pain and facial pain. The doctor may prescribe some pain killer for you to relieve the pain. And you should pay attention to take adequate rest and sleep, do not get over fatigue. In addition, you can apply cold water bags on your face or on your closed eyes to relieve the pain. Do not drink alcohol or smoke. Eat more vegetables and fruits.

Can pink eye cause blindness?

Pink eye also is called conjunctivitis, which is an inflammation of the conjunctiva, the tissue covering the eye and inner surface of the eyelid. It can be infectious or noninfectious. The common types of noninfectious conjunctivitis are allergic conjunctivitis (caused by an allergic reaction) and irritant conjunctivitis (caused by anything that irritates the eyes, such as air pollution or chlorine in pools).In most cases, infectious conjunctivitis causes only minor problems with no risk of damage to the eyes or vision. In very rare instances, though, it can cause permanent damage or even blindness, so be sure to see your doctor if you think you have pinkeye.

What are the best eyeglass lenses that change to dark shade ?

I think transitions glasses or photochromic glasses are your good choices. You can have a look at any eyeglasses stores. It is said that glass sunglasses are very heavy. But sometimes other sunglasses might be heavier than glass sunglasses. So you should pay attention to the weight of each pair of sunglasses too. Hope this helped!

Where to buy sunglasses like katy perry wears in teenage dream?

The sunglasses that Katy Perry wears in teenage dream are so excellent at the appearance. You could go to the online stores to have a search. It is said that amazon has the full goods resource. You could go there and have a search. And the price there is suitable which will absolutely make you satisfied.

What does eczema around the eyes look like?

When you have got eczema around your eyes, your eyes may turn to red, itchy. In some cases, of course, inflamed patches, and swelling can be possible. And that can be annoying. So you need to try some ways to treat it. First, you should not rubbing and scratching which can lead to potentially serious infections. Also, cold compresses can be effective, so you can use some cool ice or teabags on your eye area to relieve discomfort and itching, and also it can reduce swelling. Anyway, just be careful about it.

Can watery eyes cause double vision?

Yes, it is normal for you to have double vision because of watery eyes. The watery eyes may mean that your eyes get infection from the invisible bacterium. You will see things not clearly, in the blurry state. You'd better use the warm compress to make your eyes feel comfortable and moisture. You could also use suitable amount of eye drops to make the eyes feel comfortable and see clearly.

How long does photophobia last and how to treat photophobia?

Photophobia occurs in about 80% of migraines and resolves when the headache goes away. Photophobia is also named as light sensitivity. It is a common eye problem that makes the people feel eye discomfort in bright light, such as sunlight, fluorescent light and incandescent light. Some people may misunderstand photophobia as a morbid fear or phobia. In fact, this ocular problem is just an experience of uncomfortable light exposure. In a serious case, headache can be caused. For people with acquired photophobia, the most effective treatment is to remove the underlying reason. There are a few home remedies can be used for treating it. Firstly, you should avoid sunlight directly enter your eyes by wearing UV sunglasses or wide-brimmed hats. And people with photophobia need to squint or close their eyes when they encounter bright lights. On the other side, you can darkening your room by changing the color of your curtain.