Astigmatism is a typical vision problem that occurs when the shape of the cornea is distorted due to injuries or other causes. With astigmatism, the lenses of the eye or the cornea curves. This irregular curve can change the way light refracts or passes through your retina. This causes hazy, fluffy, or twisted vision. Farsightedness and partial blindness are two different sorts of issues with the way light goes to your retina. Farsightedness is called hyperopia. Partial blindness is called astigmatism.

Types: There are two types of Astigmatisms. These are:

1. Corneal astigmatism
It happens when your cornea itself is distorted.

2. Lenticular astigmatism
Lenticular astigmatism happens when your lens is distorted.

Risks: Astigmatism can happen in youngsters and grown-ups. Your danger of creating astigmatism might be higher if you have any of the following:

1. A family history of astigmatism or other eye issues like dislocation of the cornea.
2. Scarring or diminishing of your cornea
3. Excessive partial blindness, which makes foggy vision at a separation
4. Excessive farsightedness, which makes hazy close-up vision
5. A past of eye surgeries, for example, cataract surgery (surgical expulsion of a blurred focal point)

Symptoms; The side effects of astigmatism include:

1. Hazy, Bended, Or Fluffy Vision At All Separations (Close-Up And Far Away)
2. Trouble seeing during evening
3. Lazy eye
4. Squinting
5. Irritation in the eye
6. Cerebral Pains

Diagnosis:

Visual Acuity Assessment Test

Patients are required to read letters from a graph at a particular distance to decide how well they can see the letters.

Refraction Test

A refraction test uses a machine called an optical refractor. The machine has various remedial glass lenses that are used to read an outline while looking through lenses on the optical refractor.

Treatment:

Keratometry

Keratometry is a route for your specialist to measure the bend of your cornea. They will do this by taking a look at your eye through a keratometer.


Corrective Lenses

Remedial eyeglasses and contact lenses prescribed by a specialist are the most well-known and least obtrusive solution for astigmatism.


Orthokeratology

Orthokeratology is a treatment that uses contact lenses to correct the deformation and flow of your cornea. You will wear inflexible contact lenses for certain time-periods. It is easier to wear them while you are sleeping and remove them during the day.


Surgery

Your specialist may suggest refractive surgery if your case is a serious one. This kind of surgery includes use of lasers or little blades to reshape your cornea. This will correct astigmatism permanently. The three basic surgeries for astigmatism are:

1. Laser in situ keratomileusis (LASIK)
2. Photorefractive keratectomy (PRK)
3. Spiral keratotomy (RK).

All these surgeries might carry some risks depending upon the symptoms of your problem. As innovation advances, it is very important for the patient to explore more options before choosing which refractive surgery is a good fit for him or her.

Types and Treatment for Astigmatism

78% of urban youth are in front of the computer screen/ mobile screen for about 12 hours a day. Such extensive strain to the eyes can have long term effects on vision.  Act now to protect your eyes by following these tips-

1) Ensure appropriate glasses or contact lens prescription which is also adequate for computer use. 
2) For prolonged exposure, use glasses to help with contrast, glare, and eye strain when using a computer.
3) Adjust your computer such that your eyes are level with the top of the monitor. This allows you to look slightly down at the screen.
4) Avoid any glare on your computer from windows or lights. Use an anti-glare screen if required.
5) Choose a comfortable, supportive chair. Position it so that your feet are flat on the floor.
6) If your eyes feel dry, blink more often.
7) Every 20 minutes, rest your eyes by looking 20 feet away for 20 seconds. At least every 2 hours, get up and take a 15-minute break.

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Protect Your Eyes While Working. 7 best ways.

If your eyes suddenly look reddish and feel extremely itchy, you may be suffering from allergic conjunctivitis. Allergic conjunctivitis is triggered by exposure to allergens like pollen or mold spores. An allergy to eye drops or contact lens solution can also trigger this condition. Allergic conjunctivitis is a very common health condition and more common during the hay fever season.

There are two types of allergic conjunctivitis; acute allergic conjunctivitis and chronic allergic conjunctivitis. Acute allergic conjunctivitis is characterized by the swelling of eyelids and intense itchiness and burning. Amongst the two, this is a more common condition. Chronic allergic conjunctivitis can occur during any season and has symptoms that come and go. It is a milder response to allergens such as dust, food, pollen, chemical scents etc.

On presenting the symptoms of conjunctivitis to a doctor, he may ask for an allergy skin test, a blood test or a scraping of the conjunctival tissue to understand the type of conjunctivitis you are suffering from. Allergic conjunctivitis can be treated with a combination of medication and home care.

Antihistamines are the most common form of treatment for this disease. This can reduce and block the release of histamines in the body. Artificial eye drops may also be used to create a screen over the eye and prevent the eye from coming in contact with the allergen. Eye drops may also be used to shrink swollen blood vessels in the eye. Steroid eye drops may also be used along with anti inflammatory eye drops.

Home care to treat allergic conjunctivitis focuses on preventing the trigger. Today, apps on your phone can update you n the pollen levels in the air. Close your windows every time you notice a higher than normal pollen count and keep your home as dust free as possible. You could also use an air purifier in your home. Also, avoid exposure to strong chemicals, dyes, perfumes etc.

To avoid the condition from worsening, avoid rubbing your eyes and wash your hands every time you touch your eyes. Disinfect your towels, sheets and pillowcases that come in contact with your eyes every few days with hot water. Wash eyes with cold water twice daily especially after coming home from outside. Do not share your make up or brushes with other people. This is a healthy habit to follow even when you are not suffering from this condition. While you suffer from pink eye you should also not wear contact lenses. Once the eye has healed, discard the old lenses and replace them with a new pair.

Allergic Conjunctivitis - How It Can Be Treated?

Glaucoma is a disease that damages your eye's optic nerve. It usually happens when fluid builds up in the front part of your eye. That extra fluid increases the pressure in your eye, damaging the optic nerve.Glaucoma is the second largest cause of eye blindness in the world.

There are several types of Glaucoma:
1. Open-angle Glaucoma
2. Normal-tension Glaucoma
3. Angle-closure Glaucoma
4. Congenital Glaucoma
5. Secondary Glaucoma
6. Glaucoma suspect

How will you know that you are suffering from Glaucoma?
Only half the people with glaucoma are aware that they are suffering from this condition. When Glaucoma develops, there are usually no early symptoms. This is why glaucoma can 'steal' sight gradually.

Symptoms:
1. In its early stages, open-angle Glaucoma has no obvious symptoms. As the disease progresses more blind spots develop in the peripheral (side) view.
2. An attack of angle-closure Glaucoma includes the following:
a. Severe pain in the eye or forehead
b. Redness of the eye
c. Decreased vision or blurred vision
d. Vision rainbows or halos
e. Headache
f. Nausea
g. Vomiting
If you get any of the symptoms rush to your doctor and take an eye exam as soon as possible.

Causes:
1. Eye injury
2. Inflammation of the eye
3. Dilating eye drops
4. Blocked or restricted drainage in your eye
5. Use of steroid-containing medications (pills, eye drops, sprays)
6. Poor or reduced blood flow to your optic nerve
7. High or elevated blood pressure

Who is at Risk for Glaucoma?
People with more risk of developing Glaucoma include people who:
1. Are over age 40
2. Have family members with glaucoma
3. Have high eye pressure
4. Are farsighted or nearsighted
5. Have had an eye injury
6. Have diabetes, migraines, high blood pressure, poor blood circulation or other health problems affecting the whole body.

Types, Causes and Symptoms of Glaucoma

Vision is one of our most important senses. Reduced vision that triggers the need for corrective glasses is one of the most common disorders associated with the eyes. Crossed eyes are another such common disorder that affects the eyes. In medical terms it is also known as strabismus. This condition is a result of miscommunication between the brain and the eye muscles that result in misalignment of the eyes. It is largely a hereditary condition and should not be confused with a lazy eye syndrome.

Crossed eyes can cause double vision and disorientation. Your depth perception may also be affected. It also causes eye strains and headaches that affect the quality of your life. This condition is seen mostly in children. If not treated in time, it can continue into the adult years as well. The development of crossed eyes in adults who have not suffered from this condition as children is usually a sign of a serious condition such as a stroke.

Some symptoms characteristic of this condition are:
1. Independent movement of eye balls
2. Tilting the head to a side
3. Squinting
4. Varied points of reflection in each eye
5. Frequently bumping into things as a result of impaired depth perception.

Treatment for this condition can be surgical as well as non surgical. Non surgical treatment aims at strengthening the eye muscles and treating the visual system as a whole. The aim is to not allow the eye to become lazy or amblyopic. Wearing an eye patch over the strong eye and forcing the weak eye to be used is one of the most common form of this treatment. Corrective glasses can also be used to treat this condition in cases where it has been triggered by excessive farsightedness. In some cases, medication may also be injected into the eye to relax the eye muscles.

Surgery to correct this disorder involves correcting vision by strengthening or weakening the eye muscles. To do this, a surgeon must first make a small incision in the outer layer of the eyeball to reach the affected muscles. To strengthen the muscle a small section is removed from the muscle and the remaining part is then rejoined. This makes the muscle shorter and forces the eye to turn towards that side. Alternatively, the doctor may make a partial cut across the muscle to elongate it and let the eye turn further away from it.

Crossed Eyes - How Can It Be Treated

Amblyopia is decreased vision in one or both eyes due to abnormal development of vision in infancy or childhood.It is commonly known as lazy eye, in which a child's vision does not develop properly, usually in one eye. If it is left untreated, a child's vision will never develop correctly in the affected eye.

What are the types of Amblyopia are there?
There are several different types and causes of Amblyopia, such as Strabismic Amblyopia, Deprivation Amblyopia and Refractive Amblyopia.
The end result of all forms of Amblyopia is reduced vision in the affected eye(eyes).

How does Lazy Eye occurs?
Lazy eye occurs when your brain favors one eye, often due to poor vision in your other eye. Eventually, your brain might ignore signals from your weak or lazy eye. The condition can result in vision impairment and loss of depth perception.

What are the Symptoms of Lazy Eye?
Lazy eye may be hard to detect until it becomes severe. Early warning signs include:
1. Tendency to bump into objects on one side
2. An eye that wanders inward or outward
3. Eyes that appear not to work together
4. Poor depth perception
5. Double vision
6. Squinting

What Causes Lazy Eye?
A number of conditions and factors can lead you to rely on one eye more than the other. These include:
1. Constant strabismus or turning of one eye
2. Genetics or a family history of lazy eye
3. Different levels of vision in each of your eyes
4. Damage to one of your eyes from trauma
5. Drooping eyelids
6. Vitamin A deficiency
7. Corneal ulcer or scar
8. Eye surgery
9. Vision impairment, such as nearsightedness, farsightedness, or astigmatism
10. Glaucoma, which is high pressure in your eye that can lead to vision problems and blindness

How is Amblyopia diagnosed?
When it first occurs, parents and children often don't notice the condition. It's important to get routine eye exams as an infant and child, even if you show no outward symptoms of eye problems.
Family history of amblyopia is a risk factor for the condition.

How Is Lazy Eye Treated?
Glasses/Contact Lenses
Eye Patch
Eye Drops
Surgery
Other treatments include:
Atropine penalization therapy (also used for maintenance)
Optical blurring through contact lenses or elevated bifocal segments

What Is Amblyopia? Are You or Your Child Suffering From It?

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