Amblyopia is commonly known as'lazy eye. It is a vision development disorder, which affects eyes and the brain during infancy and childhood. It signifies that the eye does not achieve a normal visual acuity even with refractive correction in form of glasses or contact lens. During normal visual development, the eye and brain learns to'see' and develop binocularity, that is the ability to perceive depth (stereoacuity). This occurs in the first 8 to 10 years of life. 

Each eye transmits a clear and identical image from retina to the brain, which fuses the two images into a single image with 3 dimensions (adding depth). When the image is formed on the retina of two eyes is too dissimilar, the brain cannot fuse the two images and suppresses the more blurred image. As a result, the worse eye does not learn to'see' and becomes'lazy. This condition is seen in 1-4% of population.

The common causes for dissimilar images or amblyopia are:
1. Misalignment of the eyes or squint: it is the primary reason for amblyopia is misalignment of the eyes. In case, both your eyes are not aimed in the same direction, the image captured by each eye is different, resulting in diplopia. The brain will see from the dominant eye and suppress image from the other eye. Over a prolonged period of time, the eye dissociates from the visual cortex of the brain.

2. Refractive amblyopia:
A. Unequal refractive error in both eye. When the eye power of both eyes differ by more than 1.5d of spherical equivalent, which results in dissimilar images between the two eyes. As a result, the visual development in restricted in the worse eye.
B. High refractive error or astigmatism in both eyes, since there is a blurred image in both eyes, the normal vision development does not occur in either eyes resulting in bilateral lazy eyes.

3. Cloudiness in visual system or visual deprivation amblyopia: any kind of obstruction or cloudiness in the normal visual axis of the eye tissues can lead to amblyopia. Disorder of any kind, which blocks a clear image from being focused blocks the formation of a clear image on your retina. Commonly due to congenital or developmental cataracts or corneal opacities or prolonged closure of one eye in early childhood (drooping of one eyelid, eyelid swelling, patching of one eye).

Treatment for amblyopia
For treatment of amblyopia, a child must be compelled to utilize his affected, weaker eye. This can be done by correction of causative factor such as, treating refractive error with glasses, surgical correction of misalignment of eyes followed by patching and vision therapy, cataract surgery.

Patching or occlusion of the good eye
This is done to force the brain to pay attention to visual input from the worse eye. This allows nerve connections between affected eye and brain to develop due to, which the eye'learns to see. Eye drops such as atropine are also used for blurring the vision of the good eye. Some form of vision therapy may also be required to train both eyes to see together and develop some degree of depth perception.

To be effective, treatment should be implement as early as possible, within the period of normal visual development best within first 8 years of life. Some visual gain has been seen in selected patients up to age of 14 to 18 years. This also highlights the importance of a comprehensive eye examination as a routine in young children.

About Amblyopia or Lazy Eye

10 surprising facts about your eyes

You never tend to pay a lot of attention to your eyes unless they are affected by some serious disorder or unless your vision is disrupted. But did you know that your eyes are capable of doing much more than you can imagine? here are 10 surprising facts about your eyes you didn't know about.

1. How intricate!

Your eyes take more than 2 million working parts to function. No wonder your eyes are the second most complex organ of your body after your brain.

2. A lot depends on them

As much as 80% of your memories are determined by what you see. Also, 80% of what you learn is because of your eyes.

3. Retina and security

The iris of your eyes has approximately 256 unique characteristics, which is more than even your fingerprints. This is the reason why retina scans are used so widely today for security purposes.

4. It's a colourful world

Your eyes can distinguish between approximately 10 million different colours. And women with a particular kind of genetic mutation can see millions of more colours.

5. Upside-down

The retina of your eyes receives the vision of the outside world as upside down. It is your brain, which flips the image for you so that you can see the world as it is.

6. Sunscreen for the eyes?

It is possible for your eyes to get sunburnt. Therefore, it is advisable for you to wear sunglasses in order to protect your eyes from the ultraviolet radiations.

7. Godspeed!

The eye muscle is the muscle that reacts at the fastest rate out of all the other muscles in your body. It can contract in less than even 1/100th of a second.

8. Paint it red?

The retina of your eyes cannot detect the red colour. The retinas do have green, red and blue receptors, but the red receptor can detect only the colour yellow-green and the green one can recognise blue-green. It is your brain that combines these signals to give you the impression of the colour red.

9. Dreams and sight

Even if you become blind later in life, you can see images in your dreams if you were born with sight.

10. We are blink-eyed peas

You blink approximately 17 times every minute. That makes it 5.2 million times in a year.

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Related Tip: Sitting Too Close To TV Will Weaken Your Eyes? FALSE.

Surprise Yourself with these 10 Facts about Your EYES!

Conjunctivitis, also known as pinkeye, is a very common eye disease. Though it is not harmful, anyone suffering from this infection must consult a doctor and receive treatment so that it can be cured in 7 to ten days.

Conjunctivitis can be treated through a range of medical treatments. Usually, one goes to an optometrist but have you tried consulting a homeopathic for a change?

Advantages of Homeopathy

Natural medicine: Homeopathy is a natural form of medicine and is considered to be an alternative form of medicine. It would not aggravate the problem, but it would find a quick solution to relieve you from it. Allopathic medicines contain certain chemicals and drugs which might not be suitable for many individuals.

Can fight all the symptoms of conjunctivitis: This disease has some common symptoms. Some of them are redness, swelling of the eye, yellow discharges, water flow from the eyes, and others. These symptoms can be well managed by homeopathic medicines as well. These medicines work to heal the root cause of the disease and cure it.

You recover quickly: Usually it takes around a week to t10 days for conjunctivitis to completely heal. For this period, it is advised that the affected person stays indoors to avoid contamination and spread of the disease. Adhering to homeopathy can actually reduce the time span of this disease, thereby completely healing you in no time and so that you can go about your daily routine.

No side effects: Most medicines are made of drugs and chemicals and have various side effects. But with homeopathy being a naturally sourced medicinal option, the chances of having side effects are less. However, it is advisable to know beforehand if homeopathy suits you or not. If it does, then there are lesser chances of side effects.

The above factors have made it clear that conjunctivitis can be easily treated with homeopathic medicines. In case homeopathy suits you, then it might be a good idea for you to follow this course of medicine to treat this disease.

Homeopathic Medicines For Conjunctivitis

Here are the 5 best Homeopathic medicines for allergic conjunctivitis-

Apis Mel

Euphrasia

Argentum Nitricum

Ruta

Pulsatilla

The dosage and the exact medicine varies from patient to patient and depends on the severity of the problem. This does not in any way mean that only these 5 homeopathic medicines that can be used in conjunctivitis. There are dozens of other medicines that are required at times depending on individual symptoms of the patient. It is always recommended to consult a specialized homeopath before taking any such medication.

How To Treat Conjunctivitis With Homeopathy Remedies?

LASIK stands for Laser In-situ Keratomileusis. This is a common eye surgery that helps in correcting vision problems. During this procedure, the cornea of the eye is cut across by a medical expert to raise the tissues and reshape them to correct vision. LASIK is suitable for patients who have shortsightedness, long sightedness or who suffer from astigmatism.

Here are the 5 benefits that a LASIK surgery offers:

1. Improved vision

A study reveals that 95% of the people who underwent this surgery achieved uncorrected visual acuity of 20/40 and 85% of the people achieved 20/20 vision. This procedure ensures that a patient achieves enhanced vision.

2. Quick results and recovery

This surgery enables you to return to your normal schedule immediately the day after the surgery. You can have clear and improved vision within a day.

3. Long- lasting outcomes

A minimum timeframe of 3 months is required for the eyes to adjust, after which LASIK results are permanently noticeable in a patient. No follow up procedures are required unless something wrong went with the surgery. The patient will continue to have improved vision unless there is any normal loss due to illness or aging.

4. No need of glasses

You no longer require glasses as your vision turns to normal post-LASIK surgery.

5. Goodbye contact lenses

LASIK surgery will help eliminate the need for contacts. You will be able to avoid all the problems pertaining to wearing a contact lens, including lens solution.

5 Benefits of Lasik Surgery

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.

Depending on where and how they develop, there are many types of cataract. The most common amongst these are:

1.        Subcapsular cataract

These occur at the back of the eye lens. Diabetic patients are very susceptible to this kind of cataract.

2.        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.

3.        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.

4.        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.

5.        Secondary cataract

Cataract is one of the known side effects of diabetes and glaucoma. Some steroids and medicines are also linked to cataract.

6.        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.

7.        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:

1. Blurred vision
2. Reduced night vision
3. Increased sensitivity to light and glare
4. Seeing halos around lights
5. Colors appearing faded
6. Double vision

A reading test is the first step towards diagnosing cataracts. This is followed by tests to measure the eye pressure. Your doctor will also need to dilate the pupil to check the condition of the optic nerves and retina.

Surgery is the safest way to remove a cataract. Surgery is usually recommended when cataract begin inhibiting your daily life such as preventing you from driving, interfering with reading etc.
 
In most cases, this can be done as an outpatient procedure. The earlier it is diagnosed, the easier it is to treat. Hence, if you notice any of the symptoms mentioned above, get your eyes checked at once. The surgery is a day-care surgery only, so a person can go home the same day.

Is Your Vision Clouded? It Could Be Cataracts

The eye is a complex organ. It is made up of a number of different parts which together build a sense of image. Retina is a very significant part of the eye. It is this part of the eye that helps it project the image. The object image is ultimately created on this part of the eye. But it is also a very sensitive and delicate organ. There are many abnormalities that may affect the retina. Central Serous Retinopathy is one such abnormality.

This medical condition of the eye is precipitated when there is a buildup of fluid behind the retina. This leads to the detachment of the retina. The patient may experience gradual or even sudden loss of vision as the central retina gets detached.

The Retina and its Structure

The retina is a very important part of the eyes. It is a membranous structure where vision takes shape and is composed of several layers. It contains special photoreceptor cells that help in identifying color, vision, etc. There are different cells that help in central as well as peripheral vision. The central region of the retina is also known as macula. Retinal Detachment is a disorder of retina that can turn people blind or low in vision. Medical intervention is necessary to regain lost vision.

Symptoms of Central Serous Retinopathy

Patients need to be aware of the symptoms lest they should be caught completely unaware of it.

Objects may appear farther away than usual.

White portions of images may appear dull and lines may appear crooked.

Patients may experience blurry vision in the initial stages.

However, it does not always a precipitate symptom. If fluid buildup is not affecting the central vision area, the patient may not experience any deterioration in central vision. This is a perception that the central part is responsible for the central vision. He or she may experience a clear central vision, although there is a fluid buildup. Nevertheless, it may eventually push the central part and detach the retina resulting in Central Serous Retinopathy. Patients may experience a darkening or blurring of their central vision. This is usually limited to one eye. However, one may experience such problems in both eyes at different stages of life.

Risk factors

Though the contributory factors are not well known, it is thought that stressful lifestyles and some medicines can contribute to such ailments.

Treatment

Treatment may not always be required in all cases. Doctors may just ensure that built-up fluid is draining out. However, if fluid is not draining out, medical intervention is necessary doctors may go for treatments like photodynamic therapy, thermal laser treatment, or medications. Doctors may also recommend stopping steroids and bringing in lifestyle changes.

Conclusion:

People who notice any changes in their vision or experience pain or blurry vision should consult an Ophthalmologist as soon as possible. If a person is already suffering from any eye disease and experiences such symptoms, he/she should immediately seek medical attention without waiting for his/her next appointment.

In some cases, the fluid dissolves itself with no further medical treatment. However, if it does not, a variety of medicines and medical treatments are available.

Central Serous Retinopathy - What Should You Know?

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