What Does Cataract Means

Most individuals take for granted their ability to see. Eyesight is a major connection to the outside world; around 80 percent of impressions are through sight, meaning that only 20 percent are from the other four senses. The human eye has evolved over time to turn into what it is today. Through human’s needs for survival, the eye has changed to suit humans. Two of the most common types of eyes found in nature are the camera-type eye and compound eyes; the human eye fits into camera-type eyes because just like a camera lens focuses light onto something, the eye does a similar thing. The cornea, a structure in the front of the eye, focuses light onto the retina, and behind the cornea, is a colored membrane called the iris. It has an adjustable circular opening, the pupil, which expands or contracts to determine the amount of light that enters the eye.

The cataracts within the eye often changes in the lens of the eye. As people grow older the lens in the eye starts to change and can start to appear cloudy looking, this often happens and stops the process of the eye lens from being able to change shape or even to transmit the light properly. The cataracts may start to form between the ages of 50 and 60 years old and can often take a while to develop. If you are known to have diabetes then that also contributes to poor cataracts.

Macular Degeneration is a disease of the eye that gradually causes loss of a person’s central vision. Approximately 1.75 million Americans suffer from vision loss associated with the disease (All About Vision 1). The leading cause of blindness in people over the age of 60, Macular Degeneration, exists in two types (National Eye Institute 1). Both the wet and dry versions of the disease have similarities in risk factors, but differ in symptoms and treatments.

Visual impairment is a state wherein an individual experiences difficulty in seeing or not being able to see anything physical presented to them. According to Mandal, MD (2013) It is a state where a visually impaired person’s eyesight cannot be corrected back to a “normal level”. Visual impairment is often associated with old age. In Europe, an estimated 15.5 million people have visual impairment and in seven countries in Europe, about 50% of blindness is caused by age-related macular degeneration. (Dibb,

It's important to schedule regular eye exams as you age to make sure you don't lose your vision due to glaucoma. Glaucoma is a gradual increase in the pressure inside your eye. Glaucoma starts with no symptoms, but it can ultimately cause loss of peripheral vision and blindness if left untreated. Treatment is typically a simple matter of eye drops and the glaucoma test takes only seconds to preform. It is estimated that half of the people with glaucoma don't know they have it. Make sure you're not one of them.

Cataracts: As people age, proteins can gradually build up on the lens, causing a brownish or yellowish tint to the lens, blocking effective light transfer to the retina. Other things can cause the lens to lose it's clarity, include past eye surgery, injury or damage to the eye and chronic illnesses like diabetes. While more than 50% of Americans will either be living with a cataract or will have had surgery by the time they reach 80 years of age, even adults in their forties and fifties develop cataracts, and some babies are born with cataracts. Symptoms – cloudy vision, trouble driving at night, struggling to find a vision prescription that works well – gradually worsen over time. Surgery is currently the only therapeutic option.

According to Baily and Hall, while visual impairment early in life is associated with inherited congenital disorders, abnormal fetal devepment, and problems associated with premature birth, most eye conditions are associated with aging. They claim that over 70% of the visually impaired population in the United States is over 65. Age related maculopathy, also called macular degeneration, or AMD, impairs the center of vision in older individuals. The macula is the region in the back of the retina that surrounds and includes the fovea (Goldstein 1999). It is important to understand that when this degeneration progresses enough, the condition constitutes blindness because the foveal area is what is

Glaucoma is a group of eye diseases characterized by increased intraocular pressure, resulting in atrophy of the optic nerve. (Venes, D. 2013) This disease is known to gradually cause the loss of peripheral vision which can eventually lead to total blindness. Glaucoma is the third most prevalent cause of visual impairment and blindness in the U.S, although the incidence of blindness is decreasing due to early detection and treatment. (Venes, D. 2013) Glaucoma comes in two major categories: closed-angle glaucoma, and open-angle glaucoma. (Holistic Nursing Practice, Vol. 24)

Cataracts: Cataracts are overcast territories that cover piece of or the whole lens inside the eye. In a solid eye, the lens is clear like a cam lens; light has no issue going through it to the back of the eye to the retina where pictures are handled. At the point when a cataract is introduce, the light can't traverse the lens as effortlessly and, therefore, vision can be disabled. Cataracts frequently shape gradually, without agony, redness, or tearing in the eye. Some stay little and don't adjust visual perception. On the off chance that they get to be huge or thick, cataracts can generally be uprooted by

One condition your optometrist checks for during your regular eye examination is cataracts. A cataract causes clouding of the lens of your eye. You can have cataracts in both eyes or just one. A cataract can form in the center of the lens or along the edges. It may not interfere with your vision in the early stages, but your optometrist can detect it during an examination. Here are a few things to know about cataracts.

In it, there are multiple kinds. The first, and more common, is open-angle glaucoma. This is the version that at first causes no symptoms, but then causes peripheral vision loss and sometimes total blindness. The second, less common version, is angle-closure glaucoma. Acute angle-closure glaucoma is when the flow of fluid between the lens of your eye and your cornea is blocked. It can induce severe pain, nausea, vomiting, blurred vision, and rainbow halos around lights. Blindness can result in under two days from this version. Another version of angle-closure is chronic. This is like acute, but it produces damage without symptoms

A cataract is a clouding of the lens of the eyes, causing the vision to be blurry. It is caused by protein clumping together in the lens forming a small clouded area; even though it isn’t painful within time, it can grow larger making it harder to see. It is commonly found in older people. It can occur in either or both eyes; however cannot spread from one eye to another. In age-related cataract can affect your vision in two ways—clumps of protein or lens slowly colors with age.

Eye color comes from the amount of melanin, a pigment found in the front part of the iris of the eye (Genetics, 2017). Lack of melanin results in blue eyes, some melanin gives green eyes, and a lot of melanin gives brown eyes. Cataracts are clouding of the lens that prevents light from entering. The cause of cataracts is unknown but there are possible reasons for it such as diabetes, smoking, and a lot of exposure to sunlight. Signs include lack of color intensity, night vision problems, fuzzy, blurry, or filmy vision. The function of the retina is to receive light the lens had focused on, switch the light into neural signals, and then send those signals to the brain for visual recognition. Most of the time eye floaters are from age related

Glaucoma is an ocular disorder which results in fluid pressurization in the front of the eye, thereby damaging the optic nerve, which is responsible for transmitting visual information to the brain.

Cataract surgery has become a widespread phenomenon across the world in recent years. Technologies rapid advance has led to new and better techniques to do surgery. Laser assisted cataract surgery is better than the conventional cataract surgery since there is less surgical time, it is more precise, and there are less complications.