Tuesday, June 21, 2011

Can a computer system damage my eye

Can A Computer Screen Damage My Eye?

Twenty years ago, few offices workers used computers, let alone had computers. However
with the dramatic increase in home and office computer use, complaints of eye fatigue and
discomfort are commonplace. Many people assume increased computer use is the source
of these complaints. But extensive testing in government and private laboratories has not
produced scientific evidence that computer monitors will harm your eyes. Research has
established that computer monitors emit little or no hazardous radiation, such as x-ray, or
non-ionizing radiation, such as ultraviolet rays.

While computers have no known harmful effects on eyesight, computer users do often
complain of eye related symptoms such as eyestrain, headaches, fatigue, dry eyes, and
difficulty focusing, These symptoms (Computer Vision Syndrome - CVS) however are
caused not by the computer screen itself but rather by the conditions surrounding the
computer screen, such as poor lighting or improper placement of computer equipment
and computer furniture. In some instances, a pre-existing eye problem may be the cause.

Why Do We Get Eyestrain?

There are several different things that can lead to eyestrain symptoms. When the muscle
inside of the eye that controls focusing is overworked, symptoms can occur. In many
cases, these symptoms will not start immediately, but only after several hours of work.
When the muscle in the eye becomes fatigued, the eyes may feel uncomfortable or ache.
The vision may blur off and on. A mild headache can occur if the eyes continue to work.
In some cases, the muscle within the eye can become so fatigued that it cannot fully
unfocus, leading to blurred distance vision.

The following things can contribute to eyestrain:

  • Having to read or use a computer at a fixed, set distance for a long continuous
    period of time. Even if a person has more than adequate focusing ability, focusing at
    a set distance continuously can fatigue the lens.
  • Having to read or work at very close distances. This requires much more focusing
    and leads to more rapid fatigue.
  • Using inadequately powered reading glasses, or using an outdated glasses
  • Working in situations with inadequate lighting, or with glare from overhead lighting.
  • Having other underlying eye problems, such as ocular allergy or dry eye.
  • Having an imbalance in eye muscle alignment, so that the eyes have to fight to stay
    fixated on a near object.

What Can We Do About Eyestrain?
Eyestrain will not permanently damage the eyes or cause a loss of vision. However, it can
be very uncomfortable and lead to a loss of productivity. Anyone who uses a computer
can take measures to reduce eye discomfort.

Get An Eye Exam
The American Academy of Ophthalmology suggests that you start with a comprehensive
eye exam. This is always a good staring point anytime you experience symptoms like
headaches, eye strain, blurred vision, eye irritation, double vision, excessive tears, dry
eyes, pain in the eyes, excessive blinking or squinting. The exam will help rule out any
ocular conditions that may exist that are causing eye symptoms.

Vision Correction
Getting an eye exam is especially important if you wear glasses or contact lenses. Let the
ophthalmologist know how often you are in front of a computer screen. Since most
glasses are made to correct for a reading distance of 16 inches, it is important that they
are adjusted for your particular work environment. It is recommended that the computer
screen should be 20 to 26 inches from your eyes, and your glasses can be made to
accommodate this distance. Your glasses can also receive special anti-reflective coatings
and tints to help reduce eyestrain. If you are over forty, you may require one pair of
glasses that corrects for your “normal” prescription and another pair that corrects your
vision when in front of a computer screen. If you are over forty and require reading
glasses or wear bifocals (with lines or without), the need for two separate pairs of glasses
may be even more necessary.

If you do not normally require a vision correction, computer eyeglasses with low power
plus lenses and sometimes a light tint is often helpful. The color of the tint depends upon
the screen background color, ambient room lighting, and your prescription. This should
be discussed with the optician.

Adjust The Equipment
Set the monitor, desk, and chair at comfortable distances and heights. Some of these
figures may be obtained in the documentation that came with the computer products.
Most users prefer a viewing distance of 20 to 26 inches, but this distance should be
between 18 and 28 inches; a little farther away than for reading printed text. The computer
screen should be placed slightly below eye level. A good rule of thumb is that the center
of the computer screen should be 4 to 9 inches below your eyes, enabling you to look
down slightly at your work. Adjust the brightness of the monitor to an intensity that is
comfortable to your eyes; not to bright and not to dim. Then adjust the contrast control so
that the characters on the monitor and the background so the letters are easily read.

Create Good Lighting And Reduce Glare
Try to modify the lighting eliminating glare and harsh reflections. If reading, having the
light source coming from behind, over your shoulder, helps to prevent glare problems. If
using a computer, dark print on a white or light gray background is less fatiguing to the
eyes than multicolored print. Sometimes a plastic or glass filter over a computer screen
with an anti-reflective coating can help with computer glare. These can be purchased from
any office supply store.

Rest Your Eyes Periodically
Take frequent, short breaks from near work by focusing on a distance object for a few
seconds. Every twenty minutes, get up, stretch your back and neck and look around.
Move your eyes and move your body, change your position.

Change the distance that you work frequently. If the eyes are feeling increasingly fatigued,
hold things further away rather than closer to you. Avoid getting very close to what you
are reading.

Avoid Dry Eyes
Blink! Studies have shown that when you look at the computer monitor, there is a natural
tendency toward a reduced blink rate. The less you blink, the more likely you are to
experience dry eye symptoms of burning, sand-in-the-eye, heavy lids, etc.

The normal blink rate is averages 12 times per minute. Computer users usually blink 5
times per minute. The longer the eye remains open between blinks, the more likely the
cornea is to dehydrate, burn or ache. Then, finally, you blink. But the damage, although
minor and easily repaired, is already done. Your eyes sting, burn, sting and otherwise feel
miserable. You tear, feel better, then start the process all over again. Eventually, the
disruption to the corneal tissue causes a blurred image to go along with the other
symptoms. You stop work, fall asleep and your body heals itself until the next time.

There are plenty of non-prescription tear replacement or rewetting drops available at your
local drug store but being aware of the need to blink is the real fix, especially if you wear
contact lenses.

Anybody searching for Y!TunnelPro?

Well, the forum and the website have been down for days. The forum was deactivated for at least a month before the whole website collapsed. There never really have been any huge updates in the last 3/4 years.

Originally I had stated that "I hope it stays down for good" which was just being sarcastic. But I don't really care about the software because I hardly go into chatrooms anymore. Plus as long as I remember since when they have launced 3rd version the program has had a lot of bugs and it was sick to use it anyway.

Hoy es martes 10 de Enero 2012 y sitio de Y!TunnelPro es murio otra vez. Para verificar todos el diaz puede usarlo está sitio http://www.downforeveryoneorjustme.com/ytunnelpro.com. Gracias.

(Today is 10th Jan, 2012 and Y!TunnelPro website is down again. For verification any day you can use this link http://www.downforeveryoneorjustme.com/ytunnelpro.com. Thanks.)

Note that the image used in this post for Y!Tunnel is not the original. I made it myself from the ground up and there was no copying done. It can be used freely by anyone who wishes to do so. They can even edit it and make it a small piggy if they want to. If somebody asks where you got this image please link back to this article. Thanks. Jaunty :)


Monday, June 20, 2011

I'll wait for that day

I know you think of me sometimes even if it is for a fraction of a second. In the while you try to forget about me again. Although there is a portion of your heart that holds the thoughts and memories about me. You have hidden them so deep that you don't even realize they are there.

You don't want me around, even though you would like my company sometimes. You think about those magical days, when we used to be together. It wasn't something special, but it wasn't something ordinary either. I won't come back in your life. I know it's not to be. But I would still remember you, never forget, just like I promised.

That is the way I am, not caring, but still caring enough. You might be with someone else now, I know. But that deep nook in your heart is still empty. It loathes for my company. You know there's a space that needs to be filled. No matter how much you ignore, how much you tempt yourself with the trivialities of life, it won't be filled. It will make you think, it will make you want to come back.

One day will make you realize, that you were wrong, but I know you had no choice. You will see me that day. I will say that day, I understand, with a smile. Understanding will I be and then you will come to me. I will embrace you. That will be the day of redemption. That will be the day of judgment. That will be the last day of one life and the beginning of a new story, which will last for ever.

I will wait for that day, so will you, even though you might not realize it yet. 

Ton amour est dans le monde pour moi

Wednesday, June 8, 2011

I got exams ..

I'm appearing in Masters in English. I've been reading all types of old Poems / Dramas etc. It's kinda interesting.

I came to appreciate works of John Milton (Paradise Lost), Canterbury Tales (Geoffrey Chaucer), Rape of the Lock (Alexander Pope). These are some good poems.

I read through a lot of other stuff but I don't have the time to really talk about everything now.