Do your eyes get tired easily? Do they look sore or sandy? If yes, then it s time to worry for your eyes now. There is every possibility that you might have developed a dry eye. It is a common disorder of the eyes that occurs due to aging. It causes discomfort as you end up feeling scratchy or gritty all the time. The eyes turn red and have a burning sensation and feel itchy. Things get worse when you tend to stress your eyes by spending extra hours in front of the computer or read texts. In fact, the discomfort increases as the blinking frequency of the eyes get reduced.

One may also develop blurred vision due to dry eyes. An individual feels as if there is some particle inside his or her eyes, but finds nothing. Though this condition doesn t lead to very dangerous consequences, it is always a wise decision to seek medical help. The medical term for this condition is keratoconjunctivitis sicca. Once you develop dry eye, there is always a tendency to get it back again. But, the good news is that it can be treated to get some relief.

Causes
Dry eye is caused due to problems related to tear formation. When we blink our eyes, a film is formed over it. This thin layer is called a tear film. Tear film is responsible for clarity in vision. In case, enough tear is not produced, one tends to suffer from dry eyes. It is mainly caused due to ageing. 
If you don't produce enough tears, if your tears aren't of the right quality or your tears aren't spread across the front of your eye properly then you may develop dry eye. The glands producing tear or the tear film get inactive with age. Sometimes, the tear film is also affected by certain medicines, contact lenses, diseases like rheumatoid arthritis and Sjogren's syndrome.

Treatment
Dry eyes caused due to ageing cannot be cured completely. You must see a doctor for treatment but there are no permanent cure remedies. However, there are ways to help you get some relief. Here are the ways:

Try to increase the natural tears: There are certain home-based remedies to get some relief from the problem. You can keep the temperature of your room lower to get rid of the symptoms of dry eyes. Higher temperature leads to the evaporation of the tears. You can keep a humidifier in your room that adds more moisture to the air inside the room. This prevents drying up of the eye due to evaporation of tears. It is also found that when one blinks less, tear formation is reduced. The blinking is reduced while working on computers and reading. One must be careful while doing such things and try and blink as many times as possible.
Use eye drops: One needs to use eye drops called  artificial tears.  They are an alternative to the natural tears. If usual drops are not effective, gel-based thicker drops or overnight ointments are prescribed.
Block tear ducts: Another way of tackling dry eyes is by reducing the drainage of tears. For this, the tear ducts are blocked by plastic pieces called punctual plugs. The process is termed as punctal occlusion.
Take food supplements: Certain oils and Omega 3 and 6 are known to be beneficial in treating dry eyes. Include these supplements in your diet to keep your eyes healthy.

Dry Eye Syndrome - 4 Ways to Treat It!

7 Easy ways to get relief from computer eye strain

Do you spend long hours in front of the computer? If you do, you may be experiencing eye strain on a regular basis. Eye strain is a common problem and is characterised by fatigue, decreased productivity, red eyes and eye twitching. You can get rid of eye strain by making use of any one of these simple tips. 

1. Ensure that your workplace has correct lighting
Often eye strain occurs as a result of improper lighting. This can be caused by exposure to bright sunlight coming in from the windows and doors or excessively dazzling indoor lights. You can avoid extra lights by keeping blinds or shades closed and by avoiding high-intensity bulbs or fluorescent lights. Alternatively, opting for incandescent or halogen lighting can be beneficial.

2. Minimise glare
You can install an anti-glare screen on the monitor of your computer to minimise glare. Keep the windows covered to reduce glare caused by outdoor sources.

3. Modify the display settings of your computer
You can modify the display settings of your computer in the following manner to reduce eye strain:
• Brightness-Set the brightness of the display to a level, which equals the brightness of your workplace.
• Text size and contrast-Modify the text size and contrast according to the comfort level of your eyes. For most people, black text colour on a white background ensures minimum eye strain and maximum convenience.
• Colour temperature- The spectrum of visible light, which a colour display usually emits is its colour temperature. Blue light is considered to cause more eye strain. So, you should decrease the colour temperature to minimize the amount of blue light emitted by your computer’s display.

4. Try some eye exercises
You can practise some easy eye exercises to prevent your eyes from getting tired. Try staring at a distant object for 10-15 seconds and then looking at any nearby object for another 10-15 seconds. Return your gaze to the first object. Repeat 10 times.

5. Opt for some computer eyewear while working
Try wearing a pair of computer glasses while working. They ensure that your eyes remain correctly focussed on the computer screen, while reducing strain to a minimum. Computer glasses also prove to be very effective in diminishing glare. 

6. Take short breaks at regular intervals
Apply the 20-20 rule to your work regime. After each 20 minutes of work on the computer, give your eyes a 20 second break by looking away from the screen towards any object located 20 feet away from you.

7. Go for a comprehensive eye exam
Make sure that you go for a comprehensive eye exam every year to reduce vision problems caused by computers. This will also help in detecting the root cause behind your problem, so that you can effectively employ curative or preventive measures to control eye strain.

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7 Easy Ways to Get Relief from EveryDay Computer Eye Strain

Cataract is generally associated with old age. However, in some unfortunate cases, children could be affected by cataract as well. A cataract can be defined as a cloudy or opaque layer that forms on the eye's natural lens that lies behind the iris and the pupil, leading to eventual loss in vision. Cataract can affect children in one eye or both eyes.

Cataract can be a congenital birth defect or can develop as the child grows older. The latter case is known as pediatric cataracts. The exact cause of cataracts in children is not known, but it has been associated with a number of genetic disorders, low birth weight and infections during pregnancy. Traumatic events such as an injury to the eye can also cause cataracts.

The earlier a cataract is diagnosed and treated, the better it is. It is easier to identify a cataract that affects both eyes than a cataract that affects only one eye. If a congenital cataract is not treated in time, the part of the baby's brain used for sight may not develop properly. Hence it is crucial to recognize cataract symptoms.

Here are a few you should look out for:

    Not looking directly or responding to large, colourful objects.
    Not being able to find small objects while crawling.
    Excessive squinting or shielding their eyes to bright sunlight.
    Eyes that do not focus on the same point.
    White reflex instead of a red reflex in photographs.
    Uncontrolled movement of the eye.

Cataracts that are too small to affect sight can be treated with eye drops to dilate the pupil. However, this provides only temporary relief. Surgery is the most preferred form of cataract treatment. This surgery can be performed even in the first few weeks of a baby's life. The child is put under anesthesia and a microsurgical instrument is used to break the lens into small pieces and remove it.

This surgery is followed by the use of lenses or glasses to help the eye regain its power to focus again. In some cases, the lens may be implanted to replace the natural lens. In cases where cataract affects only one eye or one eye is more severely affected than the other, there may be a tendency to develop amblyopia or lazy eye syndrome. In such cases, it becomes necessary to patch the good eye shut and stimulate vision in the eye that has undergone surgery.

Cataract in Children

People are well aware of the harmful effects that UV rays have on the skin, but very few know that UV rays can damage their eyes as well. The tissue that human eye is made up of is one of the most sensitive tissues in the body and hence, the most vulnerable. The increasing level of UV radiation reaching the Earth s surface every minute has made it indispensable to take the required precautionary measures to protect the eyes.

What are UV rays?

Sunlight consists of 3 types of radiations - Infrared, Visible light and UltraViolet. Artificial sources like lasers, tanning beds and welding machines also emit UV radiation.

There are three types of UV radiations - UV-A, UV-B and UV-C. 

UV-C is absorbed by the ozone layer and does not possess any risk. It is UV-A and UV-B radiations that adversely affect the eyes and vision.

Impact of UV rays on  eyes

Too much exposure to UV rays can affect vision, harm the eyes, and deteriorate overall eye health. There are various eye problems that are aggravated by excessive exposure to UV radiation:

Macular Degeneration: It is caused by damage to the retina over time by UV rays. It leads to age-related blindness. Too much exposure to UV rays increases the risk of developing macular degeneration.
Cataract: It is the clouding of eye s natural lens - the part of the eye that focuses the light we see. Too much exposure to UV rays increases the risk of developing cataracts. 
Pterygium: Often known as  surfer s eye , pterygium is a pink, non-cancerous growth that is formed on the conjunctiva. UV rays are believed to be responsible for the development of this growth.
Skin Cancer of the Eyelids: Too much exposure to UV rays can cause skin cancer in and around the eyelids.
Photokeratitis: Popularly known as corneal sunburn or  snow blindness , photokeratitis is caused due to excessive short-term exposure to UV-B rays. Photokeratitis occurs when you spend long hours at the beach or skiing. It sometimes leads to temporary vision loss. 
How to protect the eyes from harmful UV rays?

Here are some tips to help ensure that eyes are protected against harmful UV rays:

Always use quality sunglasses that block out 99-100 percent of both UV-A and UV-B radiation when outdoors.
Stay away from tanning beds, and if you use them occasionally, always wear eye protection. 
Wrap around frames should be used if you spend a lot of time outdoors.
Be sure to see your doctor at least every two years.

UV Rays - Are They Damaging Your Eyes?

High blood pressure can lead to hypertension, which is known to cause a variety of debilitating side effects or symptoms in the life of the patient. It can also lead to a number of related ailments which can affect the various organs of the body. The eyes are one of the organs that are most susceptible to this kind of spike in the body s blood pressure. Let us learn more about the connection between the two.

Retina: When high blood pressure goes untreated for a prolonged period, it can easily start to affect the blood vessels that can be found in the retina. The retina is the third or the inner most layer of the eye which is sensitive towards light and usually helps in refraction. This is where the light reaches so that one can focus clearly on an image. When the blood pressure of the patient stays high for a prolonged basis, there is significant pressure on the blood vessels in this part of the eye which can lead to an eye disease known as hypertensive retinopathy.

Symptoms: Symptoms of this eye disease include lack of clarity and focus when the eye comes to rest on an object, as well as headaches and other vision problems that typically spring from eye strain that one will go through while trying to focus even harder. It may be seen that the symptoms do not appear in the very early stages of this disease.

Diagnosis: The diagnosis of the condition is usually done by an ophthalmologist who will use an ophthalmoscope in order to project light towards the specific part of the eye so that the back of the eyeballs can be examined. The signs that the doctor will look for during the examination include narrowing of the blood vessels in this part of the eye, inflammation of the macula which is the central portion of the retina, and bleeding in the back of the eye. Also, the doctor will check for spots in the retina with the help of cotton swabs and exudates.

Treatment: The best and only way of treating this condition is by keeping one s blood pressure in control with the help of medication prescribed by the doctor.

Prevention: There are many ways of preventing the onset of this disease, including losing weight so that there is less pressure on the body. Also, one must stick to a healthy diet and exercise regularly after taking recommendations on the appropriate exercises from the doctor. Additionally, it is also important to see a doctor on a regular basis so that there is constant monitoring and regulation of the medicines and the blood pressure.

Blood Pressure - How it Affects Your Eye Sight?

People may have weak eyes due to a variety of reasons. Astigmatism happens to be one of those reasons. When one is affected by astigmatism, it results in blurry vision. The eye has a part called the cornea, which is the outermost layer of the eye and is responsible for allowing light to enter. When the cornea is not shaped as it should be, it leads to astigmatism.

However, this is not the only condition under which it can occur. In fact, there are two different types of astigmatism. One is corneal astigmatism which is the result of an odd-shaped cornea. The other is lenticular astigmatism, which occurs when the lens has an incorrect shape. More often than not, people are born with astigmatism. However, there are chances of developing this eye disorder after an eye injury or after an eye disease.

How to diagnose?
There are a few ways in which astigmatism can be diagnosed. 

One of the most popular methods is the visual acuity test. This measures the distance at which a letter is read clearly, as compared to what it should be. 
Another way is by refraction. By placing lenses in front of the eyes, the way they focus light is measured. 
The third way by which astigmatism can be detected is by keratometry, also known as topography. Light is focused on the cornea and the reflection is measured to find the curvature of that area.
Treatment options
The easiest way to go about treating astigmatism is by using corrective lenses. This is usually the method of treatment for people whose astigmatism is not that bad. The lenses could either be a part of spectacles or used as contact lenses. The good part about contact lenses is that the field of view is wider.

Orthokeratology (Ortho-k) works to improve astigmatism by using lenses as well. However, the lenses are of the hard variety. These lenses are useful for corneal astigmatism patients as they reshape the eye. Usually, they are worn while sleeping and most people can have normal vision the next day. However, if one stops using them, the eye goes back to its original state. So, they are not a permanent solution.

Surgery, however, can be a permanent solution to astigmatism. LASIK and PRK are two of the most popular types. RK is also popular, but to a lesser extent. It is good to remember that the risks of surgery should be discussed with a doctor prior to undergoing one.

Astigmatism - Ways They Can Be Diagnosed!

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