Investigate the causes and treatment of cataract blindness.
What is cataract blindness?
This is a type of blindness that is caused by a cataract, which is a clouding in the eye’s normally clear lens. Cataracts are the leading cause of blindness worldwide and can affect either or both eyes. The normally clear or black pupil becomes clouded with a grey, milky colour and causes vision to become proportionally reduced. It has a great impact on a human’s independence because a cataract only allows light and dark to be distinguished. Who suffers from cataracts?
Cataracts can occur in humans as well as dogs and are commonly associated with ageing, although some children are born with cataracts called congenital cataracts. Cataracts are very common
…show more content…
In order for sight to be restored, the cataract does not have to be fully mature, however, when the cataract begins to interfere with daily activities, it is necessary to have surgery. Cataract surgery is performed in most countries by an ophthalmologist and is a relatively painless procedure to regain vision. It involves removing the cloudy lens tissue from the eye, which is replaced with an implant called an intraocular lens (IOL). The power of the implant is calculated individually for each eye so that the image for distance is brought to focus on the eye’s retina. After surgery a person is able to see clearly within a few hours and until the eye is completely healed, medication and care is required for a few …show more content…
It was Fred Hollows’ dream to create intraocular lenses and provide them to the world at a low cost. The Foundation set up IOL factories in Eritrea and Nepal as part of their early work in attempt to lower the cost of cataract surgery so that it is more affordable for people in developing countries. The factories have produced over 4 million lenses since they’ve opened, and the low cost of production means that cataract surgery can cost as little as $25 in some countries. The Fred Hollows Foundation supports outreach services that enable more people to access the post-operative and follow-up
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.
For the management, in this case as the cataract significance decrees the vision of the right eye, an appointment booked for intraocular lens (IOL) cataract surgery (Phacoemulsification) for right eye, monofocal (IOL).
Dr. Patricia E. Bath is a medical physician and innovator in the field of ophthalmology. She introduced a new technique and device, known as the Laserphaco Probe, which is used in cataract surgery. With this device, Dr. Bath is capable of removing the cataracts from an infected eye and replacing it with an artificial cornea. Thus making it possible for Dr. Bath to restore vision to even patients that had been blind for many years. Her goal has dedicated her life to preventing and treating visual impairments, because she believed that sight was not a privilege, but a right for all human beings. By creating the Laserphaco Probe and the technique to use it, Dr. Bath contributed a less invasive and more precise method for removing cataracts and
Can you imagine having a diagnosis of being nearsighted when you are truly farsighted? Verbal and written information of patient’s diagnosis, how they can avoid worsening their condition or even help improve their condition, can be presented at this time. Once this process is complete, the optometrist may release the patient back to the optometry assistant or if the patient choses, the dispensary. Again, correct identification of the patient is still necessary to answer and provide any additional information to the patient. If the patient decides to patronize the dispensary, he may need training on how to install and care for contact lenses or how to care for glasses. Either way, both can be accomplished by demonstration, imitation, pamphlets, brochures, or instructional video.
Cataract is a medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision. It si a common condition in people older than 40 and it is the primary cause of blindness in the world.
Really the cause of Macular Degeneration is unknown. Recently researchers have discovered that a group of genes called ABCR contribute to the disease. When someone has these genes the likeliness of this person to form Macular Degeneration increases by 30 percent. In most situations Macular Degeneration is
Glaucomas are a group of diseases leading to optic nerve damages and visual field losses. After cataract, glaucoma is the second most common cause of blindness worldwide. After 40 years old, the risk of being diagnosed with glaucoma is consequently increased; 80 million people are estimated to be diagnosed with glaucoma in 2020 [14].
In this article, “Three surgeon-innovators share their LenSx[R] Laser Pearls". Dr. LaBorwit et. al restates "Rudimentary cataract surgery is centuries old, primarily taking the form of couching, then evolving with early attempts with intraocular lens (IOL) implantation starting in the mid-1700s"(pS1). It discusses how the technical advances of the last few years have propelled surgical procedures into a bright new era. It provides practices that have embraced this new approach to cataract surgery and the errors how best to incorporate it by laser technology into their patient flows. This source is a benefit for my source because it contains how laser eyes optimized both their technique and the reproduction of their outcomes. It gives agreeable
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
The first disease I’m going to mention is Glaucoma, according to Web MD last updated in 2015, Glaucoma is a condition that causes damage to your eye's optic nerve and gets worse over time. It's often associated with a buildup of pressure inside the eye. Glaucoma tends to be inherited and may not show up until later in life.
Cataracts develop as part of the aging process, so everyone is at risk eventually [4] . But there are factors increase risk of developing cataracts [4] . So, We identify these different risk factors
Humans depend on all their sense to function in life and many take them for granted. A recent article details the several health conditions that cause blindness and how individuals are reaction to it. Given the importance of sight, Jane E. Brody educates the reader on the subject in a recent article called “The Worst That Could Happen? Going Blind, People Say?” Brody listed conditions such as age-related macular degeneration, diabetic retinopathy, glaucoma and cataracts as the primary disease that cause blindness. At the same time the article encourages education and early intervention to prevent such condition.
The best way to fix this problem is with a removal surgery, this is the only effective method to treat vision loss caused by cataracts. Cataract surgery is a common procedure that involves removing the cloudy lens from the eye. The lens can be replaced by an artificial lens, called an intraocular lens implant (IOL). Sometimes an IOL is not used, and glasses or contact lenses can
This eye disease is usually diagnosed in the beginning stages of diabetes. Though it can happen at an age, it is more common in the elderly. It is caused by high blood sugar levels, which destroy the blood vessels that are in the retina. If it is left untreated, it can lead to blindness.
One tip: wear sunglasses! UV blocking sunglasses work. They delay the development of cataracts, by blocking the direct sunlight that works to accelerate cataract growth. Retinal damage can be prevented by using sunglasses, too. They also prevent wrinkles and cancerous and non-cancerous growths around the eye, by protecting the delicate eyelid skin. Check to see if your sunglasses block