Eyeglasses and contact lenses are both used for vision correction. Both of the options have their advantages and disadvantages but a number of factors like lifestyle, comfort and age etc. are important while deciding which one to choose. Here is a list of the fundamental differences between using spectacles and using contact lenses:

1. Distance from the cornea
Lenses are worn directly on the eye and are in constant physical contact with the cornea while glasses are worn over the eyes. Contact lenses may cause infections in the eye because the user has to touch the eye in order to wear them and to take them off.

2. Difference in vision
Since the lenses of spectacles are a little distance away from the eye, vision can be slightly distorted but contact lenses can provide natural and accurate vision. Also, side vision is not improved by glasses as you have to turn your head to see what is beside you. The contacts move around with your eyeballs and the peripheral vision is in focus.

3. Ease of use
Some people find eyeglasses difficult to use because of the constant weight on the face and the obstruction caused by the frames of the glasses. There may also be a constant need to adjust the frames. Often eyeglasses slip down the nose when you sweat or engage in rigorous physical activity. Contact lenses are free from all these hassles - they are not distracting or obstructive and so they are extensively used by dancers and athletes. Spectacles is very uncomfortable to wear during the rains or in humid weather because they fog up.

4. Infections and complications
Contact lenses can get displaced inside the eye and they can be difficult to reposition. They also cause the eyes to itch and water if you wear them for a very long time at a stretch or if tiny dust particles enter your eyes. The use of eyeglasses is far more flexible in this respect - they can be removed in case your eye itches or burns, but regular use of glasses causes dark circles and bags under the eyes.

5. Aesthetic differences
People often prefer contact lenses as they do not change the physical appearance - they help you look natural and you can also use colored lenses to change the color of your eyes. Glasses may look slightly unnatural but some people also prefer them for the fashion quotient.

Lens Vs Specs

Ever noticed spots or strands that  float  into your line of vision. These are known as floaters. In most cases, they do not affect your vision, but can cause a lot of discomfort. Thus, in most cases they do not require treatment unless they affect your vision significantly. Floaters are more likely to stand out when looking at bright objects or something like a clear blue sky. Moving your eyes can shift the fluid in your eyes and move these floaters out of your line of sight.

Dust particles entering and irritating the eye should not be confused with floaters. Floaters can be described as flecks of a protein called collagen. These flecks can be seen when they are loosened from the back of the eye known as the vitreous. This can happen at any age but is more likely to affect people between the ages of 50 and 75. Being near sighted or suffering from cataract also increases your risk of seeing floaters. In rare cases, it can also be triggered by a disease in the eye, an injury to the eye, tumors or crystal deposits in the back of the eye.

Noticing the odd floater is not something to worry about. However, if you notice a sudden increase in the number and frequency of floaters in your eye, see flashes of light, have pain in the eyes or experience a loss of side vision, consult a doctor immediately. This could also be a sign of a more serious condition like a detached retina that requires immediate medical attention. Excessive floaters can be removed through a surgery known as a vitrectomy or laser vitreolysis. A vitrectomy involves the removal of vitreous gel from the middle of the eye and replacing it with silicone oil or a gas bubble. The surgery last 2 or 3 hours, but you may require an overnight stay in the hospital.

Laser vitreolysis is a more recent form of treatment for this condition. This pain free procedure involves the projection of a laser beam into the eye that focuses on large floaters to break them apart or vaporize them. This procedure can be performed as an outpatient and is considered safer than a vitrectomy. The form of treatment suited to a person will depend on a number of factors including their age, what the floaters look like, where they are located and the frequency of their appearance.

Eye Floaters - When Should You Consult A Doctor?

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!

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?

4 tips for a great eyesight

An important organ of the body, eyes must never be taken for granted and need to be protected at all times. In addition to protecting them, you also need to improve as well as maintain their overall health.

Here are some of the ways of keeping your vision in top form:

1. Eat for good eye vision

To have healthy eyes and consequently good vision, you need to have foods that keep them in good health. Nutrients like Zinc, vitamins C and E, and Omega-3 Fatty Acids can help to fend off age-related sight problems such as cataracts or macular degeneration (a condition characterized by the deterioration of the middle portion of the retina). Foods like eggs, nuts, green leafy vegetables, oranges and citrus fruits are what you need to have to get good eye health. 

2. Kick the Smoke habit

Smoking can adversely affect your eye health and can make you prone to eye conditions like cataracts, macular degeneration and damage of optic nerve (a nerve that transmits impulses from the eyes to the brain). By kicking this habit, you end up saving your eyes from irreversible damage.

3. Use sunglasses

Exposure to the Sun's ultraviolet rays for a long period of time can make you prone to common eye problems including cataracts. To protect them from the Sun's harmful rays, you need to use sunglasses that block 99-100% of Ultraviolet A (UVA) and Ultraviolet B (UVB) rays.

4. Go for a regular eye checkup

Going for regular eye examinations can help in protecting your vision and ensure you see clearly. Eye examinations are important to help you find eye problems like glaucoma (a condition wherein the optic nerve is damaged, resulting in vision loss). A comprehensive eye examination can help in identifying problems like nearsightedness, farsightedness or astigmatism (an eye defect that occurs to a deviated spherical curvature).




4 Tips for a Great Eyesight

Sunglasses are an important part of the accessories you use in summer or any time of the year. They help you to look fashionable and stylish and also make a pretty good style statement. But is that the only job of sunglasses? Or do they have something more to them? Here are a few reasons why sunglasses are more than just a style statement:


1. Decrease in eye problems: Generally, you use sunscreen to protect your skin from the Sun s glare. Similarly, sunglasses protect your eyes from the harmful UV rays of the sun. It is extremely important for you to protect the eyes so that the harmful UV rays cannot enter the sensitive eye tissue and harm them. If you do not use sunglasses, then you have a higher chance of damaging your eye tissue than a person who uses them regularly. Bear in mind that the strong UV rays can cause serious permanent damage to your eyes.


2. Protection from other environmental components: Not only is the sun harmful to your eyes, but also the wind can be extremely dangerous for them. Dirt, sand, dust particles can fly into your eyes even when just a breeze is blowing. On a windy day, damage can be much more. If you are wearing sunglasses when out on a windy day, they act like a shield to your eyes against the wind and the particles,which might enter your eye.


3.  Helps clear vision: It s often difficult to have a clear vision when out in the Sun. The bright sunlight doesn t give you the clarity in vision. Without protection, you will have reduced vision as the bright glare of the Sun might cause you discomfort in your eyes and limit your vision as you will have to squint in the bright light.


4. Helps prevent aging: Although it might sound a bit surprising, but wearing sunglasses actually helps in prevent aging. The bright glare of the sun causes you to squint and this causes the age lines to appear. So, if you wear sunglasses and your eyes are protected from the bright sunlight, then you will not be squinting anymore, and hence it will not cause the age lines to appear before time.


So now, before you think that sunglasses only make you look good, think again about how they actually do much more than that.

4 Reasons Why Sunglasses are More than Just a Style Statement

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