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Cataract is clouding of clear natural lens present inside the eye, this is a major cause of decreased vision in elderly. Cataracts can occur in one or both eyes, usually developing very slowly. Things look blurry, hazy, less colourful and less sharp with cataract.
Most cataracts are related to ageing, however many other factors can either increase the rate of formation or cause cataract formation.
Causes of Cataract Formation-
Ageing: Most common cause. As the proteins present in the lens of the eye degenerates over the years ( just like any other organ) cataract is formed. If you are having Diabetes or hypertension, the rate of formation gets accelerated.
Radiation: Prolonged exposure to ultraviolet rays, especially UV-B rays, results in cataract in your eyes. Wearing sunglasses in the daytime helps in slowing down the process of cataract.
Genes: Many genetic disorders can result in congenital cataract ( cataracts present since birth) or early formation. Like in Lowe syndrome or Down's syndrome.
How To Detect Cataract?
Certain signs and symptoms suggest the existence of cataract in the eye. Depending on the type and level of cataract, problems in vision occurs. The main symptom is foggy cloudy vision as if seeing through a dirty glass window.
Other Symptoms are-
- inability to see clearly in bright light (during the day) which becomes better in dim light ( evening and night) and vice versa.
- watery, tired eyes - mild pain in and around eyes.
- yellow tinge in vision
- Halos around light bulbs or bright light.
If you are experiencing above symptoms and having problems in viewing things clearly, consult an ophthalmologist and get your eyes checked.
I have eye irritation problem from past 25 years. It will b reddish also. I have consulted many doctors. But in vain.
My friend cannot see in bright light but by putting black spec he can do anything but after remove black spec he can't see or read anything.
What is Retinal tears & what are the symptoms to recognize Retinal tears. How Retinal tears can be prevented.
Hi I am 30 year old hand I am felling weakness and also my eyes now having more no of glasses please suggest me what can I do.
I have ocular myasthenia gravis. It occurred to me first time in 2008 and gone through medication for 2 years. Medicine was myestin. After 2 years of medication all was fine until last year. It again occurred to me last in August 2015. This time am on myestin and one immuno suppressant MMF, from last 4-5 months. Please suggest if there is any permanent cure for this diseases? Please tell.
Glaucoma is a group of eye diseases characterised by damage to optic nerve usually due to excessively high intra ocular pressure (eye pressure). If left untreated can lead to optic nerve damage resulting in progressive, permanent vision loss. Glaucoma usually affects people above the age of 40, but can affect younger people as well. This condition causes fluid to build up in the eye, which puts pressure on the optic nerve.
There are broadly two types of glaucoma - Open angle glaucoma ( more common in elderly) and angle closure glaucoma.
Women are more likely to suffer from glaucoma than men are. Ethnicity also plays an important role in determining the risk of suffering from this condition. East Asian and African Americans have a high risk of glaucoma, as they have a shallow, anterior chamber depth. Some of the other conditions that can increase a person’s risk of glaucoma are:
- An earlier eye surgery
- Retinal detachment
- Injury to the eye
- Long term corticosteroid medication
If diagnosed early enough, glaucoma can be treated and its effects can be reduced. However, the damage already caused by glaucoma cannot be reversed. The aim of glaucoma treatment is to either reduce the production of fluid in the eye or improve its flow. This helps slow down the progression of this disease and prevents any further loss of vision. Glaucoma treatment usually takes the form of eye drops or surgery.
Eye drops are the first step towards treating glaucoma. There are many different types of eye drops. Prostaglandin analogues aim at increasing the flow of fluid out of the eye and are usually prescribed in cases of swelling around the rim of the eyes, darkening of the iris and blurred vision. Beta-blockers can also help lower the secretion of fluids in the eye.
Patients who are also suffering from diabetes or lung conditions such as bronchitis may be prescribed cholinergic agents, carbonic anhydrase inhibitors or sympathomimetic drugs. Cholinergic agents help improve the outward flow of fluid in the eyes while Carbonic anhydrase inhibitors reduce fluid production in the eyes. Sympathomimetic drugs do both reduce the production of fluids and improve outflow.
If the eye drops are not effective, surgery may be advised to lower the pressure built up in the eye. Some of the common types of surgery for glaucoma are:
- Trabeculoplasty: This procedure involves directing a high-energy laser beam into the eye to open clogged drainage canals. The surgery has high success rates but the problem may recur after surgery.
- Filtering surgery: This involves creating an opening in the eye and removing a part of the trabecular meshwork, thus allowing fluid to flow outwards.
- Drainage implants: Children or patients with secondary glaucoma may be treated with this surgery where a small silicone tube is placed in the eye to aid in fluid drainage.
I am wearing spectacles since last 7 years. Will this be with me forever .My far vision is weak and i m a student.
I have red eyes and also having pain in eyes. It is just because I uses a eye drop since that time it is being pain whole time Advise me what to do now?
I have a severe itching on the armpit and groin area. I have used clotrimazole for sometime. The itching is being stopped after 3 hours from applying but I got itching again. Seems to be a severe fungal infections. Also I am getting some white fluid while rubbing and at nights I am getting more itching Kindly help me on this.
I have keratoconus in my both eyes, I did my C3R 3 years back. But still my disease is progressing. What should I do now? Should I go for holcomb C3R being done by Dr. Brian Boxer Wachler in USA?
I have red eyes for over 8 days because I would like to see irritation in my eyes as it was bruieee by my sister.
All You Need to Know about Cataract Surgery
A cataract is defined as a clouding of lens in the eye where your vision gets blurred. A cataract affects the eyes, when light that passes through the lens prevents a clearly formed image from reaching your retina. The disease is very common and usually develops as your eyes age or due to any injury caused to the tissues that cover your eye's lens.
Types of cataracts:
Senile Cataract: This is the commonest of all. It is age-related clouding of the lens. It can affect the near or distance vision and can also cause glare and change in glasses power.
Traumatic Cataract: It can develop many years later after an injury caused to your eye.
Congenital Cataract: As the term explains, the disease may be inborn or some children might develop it at a later stage which often affects both eyes.
Radiation Cataract: It can form after you are exposed to some form of radiation.
A cataract surgery involves the extraction or cleaning of the cloudy lens, which is then replaced by a clear artificial lens.
Why does it happen?
There are lens that lies behind our iris and pupil which act much like a camera lens. It helps concentrate light onto the retina at the back of our eye to form a sharply defined image. Besides, the lens also helps our eyes to adjust focus and allows us to see things clearly both far away and up close. The lens is composed of protein and water where the protein is arranged in a manner to keep the lens clear thereby letting light pass through it.
However, as we grow old, some of the protein starts to become thick and cloud a small lens area. This is known as a cataract. With the passage of time, it may inflate and cover more of the lens, making it difficult for us to see.
Besides, there are other causes of cataract such as smoking, addiction of alcohol, prolonged sunlight exposure, to name a few.
When should you opt for a cataract surgery?
Believe it or not, but till date no eye drop or medication has proven to reverse or prevent the formation of a cataract. If a cataract is affecting your nearsightedness or alteration in your prescription, then new prescription eyeglasses may help to better your blurred vision. However, the only treatment for a cataract is the surgical removal of your natural lens. And, most eye doctors recommend this surgery only when the problem becomes severe and starts hampering your day-to-day activities, such as studying or driving at night.
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