Saturday, March 2, 2019

Lazy eye (Amblyopia): Definition, Cause, Symptoms, Diagnosis, Surgery and Treatment

Lazy eye (Amblyopia) definition


We also know amblyopia by the name of lazy eye. Amblyopia is a therapeutic term that is used due to diminished vision in one of the eyes because the eye and brain are not functioning properly together. We can also define it is, Amblyopia is vision development disorder in which an eye loss or lack of development of central vision in one eye, even with contact lenses.

Lazy eye (Amblyopia): Definition, Cause, Symptoms, Diagnosis, Surgery and Treatment

When a patient has amblyopia, the brain focuses more attention on one eye than the other. If the eye is not properly stimulated, then the nerve cells responsible for vision are not normally mature.

From birth to age 8, the child's eyes and brain form important relationships. Anything that blocks or blurs sight in one or both eyes can slow or stop these connections. Amblyopia begins during childhood. In most cases, only one eye is affected. But in some cases, both eyes may have less visual acuity.

The dangerous part in which it has no presentation symptom, it does not cause headaches, it does not burn in the eyes, nothing happens by this, so no child complains about it. But sometimes the solution is to go to the eye doctor as easy as possible.

Treatment for amblyopia may be correct in the way the eye and brain work together and strengthen the sight. Initial treatment is important - waiting or not waiting for a proper diagnosis can lead to permanent vision loss (blindness).

In the United States, 3% of all children are affected by amblyopia. This is the most common cause of partial or total blindness in the eye in the United States,/ or other countries. Here are the names of some countries that are fighting with this problem:

• North America
(USA, Canada, and Mexico)

•South America (Brazil, Argentina, Columbia etc.)

• Europe
(Germany, France, UK, Russia, and Italy)

• Asia (China, Japan, Korea, India, Nepal, and Southeast Asia)

• Africa (Saudi Arabia, UAE, Nigeria, and South Africa)


Lazy eye cause


Due to abnormal visual experience at the beginning of life, a lazy eye develops which alters the nerve path between the eye and a thin layer of the tissue behind the brain. Weaker eyes get a less visual indication. After all, the ability of the eyes to work together reduces,/ and the brain suppresses or ignores the input from a weaker eye.

Anything that smears the child's vision or causes an eye to cross or turn out, can result in a lazy eye. When your child's brain gets a blurred image and clear, then he starts ignoring the blurry. If it runs for months or years in a young child, then the vision in the blurred eyes will get worse.

The most common causes of amblyopia include strabismus, anisometropia, individual eyesight, or obstruction of one eye, or other causes.

Below are some examples of possible reasons, such as

1. Strabismus


Strabismus has two eyes failure to maintain proper alignment and work together as a team. This is the most common cause of amblyopia. Muscle imbalance makes it difficult to track objects together for both eyes. Strabismus can be inherited,/ or may be a result of near or near sight, a viral disease, or an injury. This kind of amblyopia is called strabismic amblyopia.

2. Refractive amblyopia (anisometropic amblyopia)


A refractive error occurs when the light is not concentrated correctly as it travels through the lens of the eye. This is due to problems with the structure of the eye.

Refractive errors which are the cause of lazy eye:

• far-sightedness - where distant objects appear normal but nearby objects can lead to blurry.

• near-sightedness - where the surrounding objects appear normal,/ but distant objects become blurred

• anisometropia - anisometropia is the situation in which two eyes have unequal refractive power.

• astigmatism – where the irregular shaped cornea or lens leads to blurred vision or distorted vision due to problems of concentration.

The child with anisometropic amblyopia will be more distant or near-sighted in one eye than the other, resulting in refractive errors in some children may cause the brain to ignore signals from one or both eyes.

3. Deprivation amblyopia


It is a lazy eye due to something that prevents light from entering a child's eye and focusing, such as congenital cataract. Rapid treatment of congenital cataract is essential for normal visual development.

4. Squint


A squint is a very common eye stage that affects about 1 in 20 children. If a child has a headache, then one eye is straight forward, but the other eye appears on the left, right, top or bottom.

This causes the brain to get two very different images which it can not combine. In adults, the result will be double.

Children who are still developing, this can cause the brain to ignore images with a squinting eye, which can lead to lazy eyes.

Some children are born with squints. A squint can be developed as a result of a group of eye conditions for older children, which is called refractive errors.

5. Cataract


A cloud in the eye lens. Some babies are born with a cataract, where the normal lens of the eye is clearly cloudy. It can keep eyes from developing properly in that eye.

6. Genetics


Genetics also plays a role. Amblyopia walks in families. It is also more common in children born prematurely or in children with developmental delay.

Lazy eye signs and symptoms


Many children do not complain about their vision problems with their parents. Over time, they become accustomed to having a good vision in one eye and poor vision in the other. Amblyopia is usually the developmental problem of infant vision, it can be difficult to understand the symptoms of lazy eye (amblyopia).

However, one of the common causes of amblyopia is strabismus. Therefore, if you think that your child or child has crossed the eyes or any other clear eye misalignment, then immediately make an appointment to check the eyes of children - preferably with an optometrist. An eye specialist who specializes in children's vision.

Another hint that your child may have amblyopia may be if he/ she cries on covering one eye.

As previously mentioned, the lazy eye can be confused with other visual defects, so it is important to notice the subtle behavioral changes in your child. There is a clue to see that when you cover one of your child's eyes, they become uncomfortable or they cry. This common test can be performed by itself by covering one eye at a time, while they are performing a blind demand. Caution should be used because this method has no replacement for an eye check.

The symptoms of amblyopia may include:

• head tilting

• Do not show up properly

• poor depth perception

• eye do not work together properly

• blurred vision

• double vision

• Past ocular (eye) disease or surgery

• Strabismus or any other eyes problem

• an eye which wanders inward or outward

• one eye does not look like in the same direction as the other eye.

• Children may notice that they have problems with the perception of vision or depth in one eye.

It is important to check the sight of a child. In most countries, the first eye examination takes place at 3 to 5 years of age. If there is a family history of eye movements, cataract, or other eye conditions, then it is especially important to check the initial eyes. Parents who see their child wandering after a few weeks should tell their doctor.

Lazy eye diagnosis


In developed countries, their first eyes are examined between children between the ages of 3 to 5 years or before school begins.

All children should be tested before school age (3-5). Your child's doctor or school vision program will check to ensure that:

• Some things block the light coming in the eyes.

• Whether both eyes see properly or not.

• Around the eyes

• Within the children's eye

• The position of eyes in the socket

• The doctor can also see how the child responds when one eye is covered.

• Cover one of the children's eyes and see how well they can follow a moving object.

If there is a problem, a doctor or school nurse may suggest you take a specialist. If you feel something wrong with your child's vision or eye problem - even if nothing is visible in the sight check - make an appointment with an eye specialist.

Some eye-care experts say that children should be tested for 3 years, and every year in the eyes if your child in school.

Bad vision in an eye does not always mean that the child has amblyopia (Lazy eye). In some cases, wearing eyeglasses to correct vision error in one eye.

The initial diagnosis of amblyopia can help the problem to prevent permanent vision. So, it is important that all child receive normal vision screening. Importantly, the first treatment is the higher the rate of success.

Lazy eye treatment




Treatment of lazy eye involves compulsion to focus the brain on the images of obscure or weak eyes so that the sight is strong in that eye. Lazy eye is usually cured by the child using their weak eyes. It is often done by applying patches on the child's strong eye. In some cases, the use of drops of eyes can be used to blur the vision in a strong eye. Or the child can wear glasses with a lens which blurbs the vision in that eye.

It usually takes several weeks to several months to strengthen the vision in a weak eye. Once the child has a better vision in that eye, they may need to wear the patch part-time for some years. This is because the eye can be weak again. Remember all appointments with the child's ophthalmologist because they carefully monitor your child's vision.

Treatment of amblyopia involves glasses ( contact lenses), patching, a vision exercise, eye surgery or placing dilating drops (atropine) in the “good” eye.

Here, lazy eye treatment

1. Glasses


Children with refractive errors such as near sight, a distant vision or astigmatism will be allowed to wear glasses. The child must wear them all the time so that the experts can monitor how effective they are in improving eye problems in a lazy eye. Eyeglasses can also correct the turn of an eye. Occasionally, the glasses can solve the amblyopia, and no further treatment is required.

Eyeglasses help the brain to send clear or fresh images, focused images. This allows the brain to use both eyes together.

Vide smart glasses to treat lazy eye is the best choice. The Vidi Smart Glass offers more efficient termination treatments, along with special liquid crystal design.

2. Atropine eye drops


Occasionally, despite the best efforts of parents, some children will not wear their eye patches. In this case, atropine drops can be used. Just as a patch blocks sight in an unaffected or straightforward eye, so the drops of atropine force the brain to recognize images seen from weak eyes, which blur the vision in a strong eye.

Every day a drop is kept in your child's eye. The good eye has atropine blurry vision, which forces your child to use it more firmly, to strengthen it, to use it. The advantage of using atropine eye drops is that your constant vigilance is not required to ensure that your child wears a patch.

Atropine was first synthesized in 1901 by a German chemist Richard Willister, although the use of plant extracts of atropine was used by Cleopatra for cosmetic dispersal in the last century BC. went. This is a great drop for lazy eye.

3. Eye patches


A Child does not like to have their strong eyes patched. You have to try what is best for your child. Otherwise, the treatment will not properly work.

It may take some time for your child to get used to wearing a patch. Over time, it should be easy for them and for you. Remember that strengthening the weak eye is the only way to develop healthy, and normal vision.

Your child's skin near the eye can irritate. To help, try a different shape or type of patch, and keep the patch at a different angle each day.

Your child may initially be clumsy while wearing patches. Try tracking your child when they are climbing stairs, playing games or getting active.

In this treatment, A patch is placed on the "good" eye so that the lazy eye has to work properly. As the brain is only receiving information from that eye, it will not ignore it. A patch will not get rid of an eye turn, but it will improve eyesight or vision problem in a lazy eye.

Treatment depends on many factors, child's age, the severity of their problem and how much they follow the instructions of the specialist.

4. Lazy eye Surgery


In some cases, eye specialist will recommend surgery to fix some eye problems due to lazy eye.

After surgery, the child may need to wear a patch or else a strong eye should be covered until his vision improves. If treatment with eyeglasses, patches, or atropine drops does not improve eye alignment, eye muscle surgery can be an option.

If a cataract is a reason for lazy eye, then it can be removed by surgery under local or general surgery. Surgery can also be done for some people, lazy eye is caused by an eyelid that is blocking eyesight with weak eyes. In this case, the general treatment is surgery to lift the eyelid.

Surgery involves wandering or tightening the muscles, causing the eye to wander. In this type of surgery, there is usually no need to stay in the hospital overnight.

5. Exercises


Lazy eye exercise to help in the right sight is known as orthoptic. This includes various exercises and games aimed at improving the development of vision in the affected eye of the child. Experts say it is helpful for older children. Vision therapy can be done with other treatments.

• Blink for a minute

• Look to your right and left for a minute

• Close your eyes and relax

• Move your gaze in different directions

• Close and open your eyes for a minute

Other exercises, like home-based pencil push-ups, can be used when once the weak eyes return to strength. They slowly move a pencil towards the tip of the nose and focus on the end of the pencil during this movement until it becomes blurred.

However, people with amblyopia in the form of first-line treatment are unlikely to use home-based exercises. Many orthopedic exercises require vision in both eyes and are meant for a child with different vision problems.



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