What Are Cataracts?

Cataract is an impairing vision. It can in another language called obscure the lens of the eyeball. From research and feasibility study, it clear that cataracts often develop as you age. Cataracts create impairing motion and clouding vision perception. Only a small region is covered when cataracts occur in anyone. It will finally develop to cover the whole disc of the eyeball. Research has also shown that cataracts can remain small without any development in some cases.

Signs Of A Cataract:

From experience and research, it is important to know that cataracts do not pose any pain. When cataracts develop fully, the eye will always remain normal. When checked under a flashlight, the pupil may appear in a white color as cataract gets developed. Another great sign of cataracts is that your image will begin to experience blurry display. Light will remain dim when a person in infected with cataracts,

Causes Of A Cataract:
As a person ages, cataracts may develop symmetrically in both eyes. In case as well occur in children, but on a rear basis. Due to cell division error, your lenses will begin to cloud. Normally, free radicals have been discovered to be the main cause of cataracts. Diabetes and injury can as well cause cataracts.

How Are Cataracts Diagnosed?
Normally, cataracts will begin with cloudy or blurred vision. It will gradually develop to make images not sharp. Night driving will be difficult for a person with cataracts. Nevertheless, the colors will no longer be bright. With the help of an ophthalmologist, identifying cataracts can be done with several tests. This is usually the first stage prior to diagnosing cataracts. Below are few ways of diagnosing cataracts.

The first step to take is by understanding cataracts and its effect on your eye. It often cloud or blur the eye in form of a transparent lens. The light rays will be prevented from focusing on the retina as the lens develops.

Next on the list is understanding the signs associated with cataracts. This can be found in the likes of glare and light sensitivity, blurred vision, vision and colors will eventually get muted. However, sight will become distorted.

What are treatments for cataracts?
Research has proven that contacts or glasses cannot reduce the signs of cataracts. Lens replacement surgery has been discovered as the most effective treatment for cataracts. Normally, experts will have to create a little incision on the lens. The lens is removed and replaced with an IntraOcularImplant permanently. It is important to know that ultrasound can as well be used to break up the lens. Through vacuum, it is now replaced with an implant.


Glaucoma

Glaucoma is an eye disease that damages the optic nerves. It is a condition that usually affects one or both eyes, and is caused by pressure build-up within the eyes. It could be inherited, but will only show up later I life. It mostly affects people who are above 40 years old. The intraocular pressure causes damage to the optic nerves that transmits images to the brain. It can lead to permanent loss of vision if not noted and treated early enough. Glaucoma is not associated with any pain. This makes it hard for patients to not it at early stages.

Types of glaucoma

There are two main types of glaucoma.

  1. Open angle glaucoma. It is also referred to as wide angle glaucoma and is the most common type of glaucoma. They eye structure appears normal, but the eye fluid does not flow properly resulting in intraocular pressure. If the pressure leads to optic nerve damage, it will cause open-angle glaucoma. This happens gradually and with no any pain. You might not realize it until the optic nerve is affected and blindness is resulting.
  2. Narrow-angle glaucoma. It is also called Angle-closure glaucoma and acute angle-closure glaucoma. It is a lesser common type of glaucoma. It occurs when the drainage in the eye becomes narrow, causing pressure build up within the eye. The Irish may close the drainage angle within the eye causing dangerous pressure. If the drainage of the eye is blocked completely, pressure will build up so fast and acute-angle glaucoma will result. This type of glaucoma is associated with so much pain within the eye. Its other symptoms include: blurred vision, headaches, nausea and vomiting and rainbow haloes around light. If not quickly treated, it can lead to permanent blindness.

Other types of glaucoma include:
Secondary glaucoma
This happens as a result of an accident or an eye injury. It can also occur due to other eye conditions such as uveitis.

Developmental glaucoma
It is a rare type of glaucoma, but sometimes very serious. It occurs mostly in very young children. It is caused by abnormal development of the eye.

How glaucoma is diagnosed

An optician will test a patient's vision and examine the eyes through dilated pupils. The eye tests focus on the optic nerve, which has a particular appearance in the case of glaucoma. A procedure called tonometry will also be conducted by the doctor to test the eye pressure and visual test when necessary to determine whether there is loss of vision. The tests are painless and take a short time.

What is the treatment for glaucoma?

The treatment will depend on the nature, and severity of glaucoma that a patient has. There is no permanent cure for glaucoma, but it can be controlled. There are various treatments that are used to prevent or slow the rate of damages. They include: pills, eye drops, and surgical operations and laser operations.


Far Sightedness

Farsightedness, or otherwise known as Hyperopia, is a condition where the lens of eye becomes too short or loses its flexibility to become round. A person with this disorder is able to see far off objects but he/she seems to have a difficulty in observing nearer objects. The solution for such condition is provided by an artificial convex lens which can be easily fixed either as a lens on the eyeball or as a spectacle on one's nose. Generally, people who are aging have such a condition.


Near Sightedness

Nearsightedness, or otherwise known as Myopia, is an eye condition where a person can view close (or near) items very clearly however, objects that are far away are blurry.

Nearsightedness/Myopia is a condition where the image formation doesn't directly occurs on retina, but in front of it causing the image to appear out of focus. A person with this disorder is able to see close by objects efficiently but he/she seems to have a difficulty in focusing far off objects. The solution for such condition is provided by an artificial concave lens which can be easily fixed either as a lens on the eyeball or as a spectacle on one's nose.

Generally, younger people are affected with this kind of problem because this is not a disorder that occurs due to aging, whereas, this disorder is a curse of technology which has affected the current young generation. Although, myopia is a bane but in certain cases it can be a boon as well because if a person is affected with myopia during his younger years, later while aging a myopia patient can become hypermetropia patient and due to a shift in image formation due to aging a person can be cured of both the disorder together by cancelling each other's effect on the person's eye. But, only in few cases, otherwise, a situation of presbyopia is attained where a person has farsightedness as well as nearsightedness together. Solution for such a condition is provided by special glasses having both concave and convex lenses and they are known as bifocal lenses.



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