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What is amblyopia or lazy eye? Amblyopia is decreased vision in one or both eyes due to abnormal development of vision in infancy or childhood. In amblyopia, there may not be an obvious problem of the eye. Vision loss occurs because nerve pathways between the brain and the eye aren't properly stimulated. The brain, learns to see only blurry images with the amblyopic eye even when glasses are used. As a result, the brain favors one eye, usually due to poor vision in the other eye. Another word for amblyopia is 'lazy eye'. It is the leading cause of vision loss amongst children.
The major causes of Amblyopia are as follows:
- Eye Misalignment: The most basic reason for amblyopia is misalignment of the eyes. In case, both your eyes are not aimed in the same proportion or direction, the image from the affected eye is turned off by the brain. Only the better eye functions. Double vision is restricted. The persistence of this defect for a prolonged time, makes the eye lose connection with the brain's visual cortex. Amblyopia develops.
- Not Correcting Refractove Error: Not only imbalance in refraction, but not correcting refractove error i.e. not wearing specs in childhood. The later is more prevalent. If the refractive blunder of both the eyes is not the same, both eyes can't be in the center at the same time. Amblyopia happens when one eye stays out of the center since it is more myopic, farsighted, or astigmatic than the other. One eye becomes dominant. This results in the neglect of the unfocused eye, which neglects to associate with the mind. Treatment with glasses or contact lenses to adjust the refractive blunder of the eye is required.
- Cloudiness in the visual system: Any kind of obstruction or cloudiness in the normal functioning of the eye tissues can be another reason, which leads to amblyopia. Disorder of any kind which blocks a clear image from being focused is capable of blocking the formation of a clear image on your retina. This may lead to amblyopia. This is perhaps the most severe type of this disease.
How to cure amblyopia?
For treating amblyopia, a child must be compelled to utilize his affected, weaker eye. This can be done by correction of any disorder of the affected eye such as refractive error, problems in the retina, etc. The goal is to correct the amblyopic eye. The normal eye is usually covered up by a patch, so that only the affected eye can be used for vision. The patching up may continue for weeks, months or years until the best vision gets restored. The improving eye should be maintained well. Spectacles are also prescribed for correction of errors regarding refraction. Eye drops such as atropine are also used for blurring the vision of the good eye. Amblyopia makes you visually impaired. The earliest symptoms must be perceived and acted upon.
Dear sir/mam. How to increase my eyesight naturally and suggest some indian vegetable (which are easily available in markets) which helps in increasing eye sight with great positive impact on my eyes .As without glasses I can't see anything clearly which made me to release very bad. I am also trying some eye exercise.
My relatives has been diagnosed as suffering from retinitis pigmentosa in both eyes. Is there any treatment for retinitis pigmentosa in both eyes in allopathy?
Eyes are a beautiful gift of God, enabling us to appreciate the beauty around us. Thus utmost care should be taken of this delicate organ. However, aging comes on with different sets of diseases, and an eye problem is one of them. It becomes very important to visit an ophthalmologist in that case.
A visual field test and ophthalmoscopy are necessary tests that are used to determine the eye problems of the patients. Cataract is one of the commonly occurring eye problems across the planet. Getting to know about the condition and the ways to manage cataract is imperative to avoid complications in vision.
Cataract can be defined as the clouding of the natural lenses in the eyes. This is caused by the clumping of protein in the eye lens. Cataract is a common eye disorder and the leading cause of loss of vision in people who are past their fortieth birthday. Cataract can occur in one or both eyes. When diagnosed properly, cataract can be treated with surgery to prevent blindness.
What is a Cataract?
It is a disease where clouding of the lens occurs which leads to decreased vision in patients. It can affect one or both eyes. Cataracts are the cause of blindness and visual impairment nearing 33 percent worldwide.
Common symptoms that show up include blurry vision, halos around light, faded colors, and trouble seeing at night which causes driving problems, trouble in reading or recognizing faces and many more. This disease is most commonly caused due to aging. In rare cases, it may be present from birth, and other risk factors include tobacco smoking, diabetes, prolonged exposure to sunlight, trauma or radiation exposure and alcohol.
A recently conducted eye surgery also increases the chances of good results.About 20 million people are blind due to this disease, and in the US alone, it is the cause for 5 percent of blindness, while in Africa & South America it is the cause for nearly 60% of blindness.
Depending on where and how they develop, there are many types of cataract. The most common amongst these are:
- Subcapsular cataract: These occur at the back of the eye lens. Diabetic patients are very susceptible to this kind of cataract.
- Nuclear cataract: Yellowish-brown cataract that form in the center of the lens are called nuclear cataract. This is usually seen in cataract caused by ageing.
- Cortical cataract: Cataract in the lens cortex are known as cortical cataract. These are wedge shaped and whitish in color. Spokes protruding out of these opaque wedges can be seen moving towards the center of the eye.
- Congenital cataract: Though they are not common, babies can also have cataract. Cataract formed at birth or within the first year of a baby's birth are known as congenital cataract.
- Secondary cataract: Cataract is one of the known side effects of diabetes and glaucoma. Some steroids and medicines are also linked to cataract.
- Traumatic cataract: If your vision becomes cloudy years after an eye injury, it could be a traumatic cataract. It can take several years for this to happen.
- Radiation cataract: Exposure to radiation can also lead to cataract. This is seen sometimes in patients who have undergone radiation therapy to fight diseases like cancer.
Though the type of cataract might differ from person to person, the symptoms are usually the same. Some of the common symptoms of cataract are:
- Blurred vision
- Reduced night vision
- Increased sensitivity to light and glare
- Seeing halos around lights
- Colors appearing faded
- Double vision
Treatment and Management of Cataract
Well, no medical treatment is effective once the opacity of lens has developed. Therefore, surgical treatment remains the only option left to go with. Performed usually using local anesthesia, about 9 out of 10 patients achieves a corrected vision of 20/40 after surgery.
Management of patients with cataract is a gradual process where the first assessment done by ophthalmologists is regarding the prevalence and the morphology of the eyeball. Three major types of cataract are known, and patients are categorized into them first. The category includes cortical, nuclear or PSC (Posterior subcapsular). Some may have mixed cataract.
Complications may occur post operation, and thus management is required.
A patient post operation is sent to a co-managing doctor, and the eye surgeon decides what should be the proper time to take this step. Most of the ophthalmologists prefer to observe the patient’s condition at least once in a day by a post-operative visit to ensure zero complications.
Optometrists provide post-operative care in more than 2/3rd of the cases. Co-management should be done in patient’s best interest be it at day one or later in the post-operative course.
I am 24 y boy. I have eye site problem. Due job my job profile I have to spend daily 9 hours in front of computer. According to eye prescription (RIGHT EYE :CYL=-1.25, AXIS=85 LEFT EYE: CYL=-1.25, AXIS=172) axis is going to increase if I observed evey 6 months eye check report. So I request to please give me some information about 1.Which type of activity I have to perform daily to control and minimise eye site 2.Which type of diet I have to maintain. 3.Other activities to minimize eye site. I will wait for your reply. Thank you abhijeet.
Hi. Recently I have been taken glass and my eyesight power is (-0.75), so. Is there any treatment (or advise) for remove my glass. Is this possible (remove glass). Please. I'm in problem!
Dear Doctor, I am a 41 year old woman. I have thyroid problem since three years. I observe that when I get up early morning I develop under eye bags. Since six months I am observing that my right eye gets swollen when I get up and my left eye has an under eye bag. Do I have any eye problem kindly suggest.
My eye power is too much Right eye - 5,75 (SPH) Left eye - 6.50 (SPH) CYL - 0.75 AXIS 165. IS their is any eye drop available for improving eye vision?
I can see all the words but feels some blurry when read newspaper or books. And feels itchy sometimes what should I do.
During pregnancy had Swollen eye lids. Now after 1 year after the baby is born, still the swollen eye is there. No red eye, no irritation, just swollen eye lid. Sometimes reduces, but once I get up from sleep it will be in peak.
I am 24 year old male and have a weak eyesight. P.S- I don't wear glasses and I have a short sighted vision. What can I do to improve my eyesight.
Night blindness is also called nyctalopia.It's a type of vision impairment. People with night blindness experience poor vision at night or in dimly lit environments. It is not a disease in itself, but rather a symptom of an underlying problem, usually a retina problem.
What Causes Night Blindness?
A number of eye conditions can cause night blindness, including:
- Nearsightedness or blurred vision when looking at faraway objects.
- Cataracts or clouding of the eye's lens.
- Retinitis pigmentosa, which occurs when dark pigment collects in your retina and creates tunnel vision.
- Vitamin A Deficiency
- Zinc Deficiency
- Dry Eyes
Are the Symptoms of Night Blindness?
The sole symptom of night blindness is difficulty seeing in the dark. You're more likely to experience night blindness when your eyes transition from a bright environment to an area of low light, such as when you leave a sunny sidewalk to enter a dimly lit restaurant. You're likely to experience poor vision when driving due to the intermittent brightness of headlights and streetlights on the road.
How can I Prevent Night Blindness?
You can't prevent night blindness that's the result of birth defects or genetic conditions, such as Usher syndrome. You can, however, properly monitor your blood sugar level and eat a balanced diet to make night blindness less likely.
Orange colored foods are excellent sources of vitamin A, including:
- Sweet potatoes
- Butternut squash
What are the Treatment Options for Night Blindness?
The treatment will depend on its causes.
- Nutrient deficiency (Vitamin A and Zinc) is the easiest to treat.
- If the cause is cataract, you can go for cataract surgery to remove the clouded lens and replace it with artificial intraocular lens. Vision is usually dramatically improved after surgery.
- For dry eye syndrome, lubricate your eyes with artificial tear drops as they provide instant relief. Just make sure that they are without preservatives.
- Diabetic retinopathy can be prevented with tight control over blood sugar, active lifestyle and good dietary habits.
- As for retinitis pigmentosa, unfortunately there are no treatments available. Thankfully, new research is showing that vitamin A might have a slowing effect on the progression of this eye disease. Consult an Expert & get answers to your questions!