Happy World Sight Day 2023

World Sight Day

“The only thing worse than being blind is having sight but no vision.”

Every year World Sight Day is commemorated on the second Thursday in October. It is an international event which creates attention vision impairment and blindness. It was founded by the Sight First Campaign of Lions Club International Foundation in 2000. 

We can also call it W.S.D. The international agency for the prevention of blindness is coordinating the world sight day and creates some games for blind kids and motivates them to give gifts and prizes. The main object of this day is to eradicate the blindness from the country and also this day is a hope to reduce the negative effects of blindness and vision loss. 

It can decrease quality of life, reduce economic growth and social development. According to the world health organization 39 million peoples are blind and 246 low vision in the whole world they are living in Low Countries which is 90% blind in the developing world. Blindness is a type of disease which takes attention on this day.

“The eyes are the windows to the soul”

THE HUMAN EYE

Our eyes are one of our five sense organs. Sight is very important for everyone. Human eyes are known to react by light. 

The human eye is made up of two differently shaped pieces, the cornea and the scalera. The cornea and the scalera are connected by a ring that is called the limbus. The outer part of the eyes which can be seen is Iris. The iris is the colorful part of the eye. In the middle of the pupil there is a black dot, that we called the pupil, which changes the size of the eye. The cornea covers all these elements, which is the outermost covering of the eye. The optical nerves send signals from the eye to the brain.

The outermost part of the eye is composed of the cornea and the sclera. The middle layer of the eye is composed of the choroid, ciliary body and iris. The innermost layer of the eye is the retina, which can be seen with an instrument called the ophthalmoscope.

Our eyes are composed of rods and cones. Rods allow us to see shapes, while cones are responsible for detecting and deciphering colors.

“Our sight is the most perfect and most delightful of all our senses.”

THEMES OF WORLD SIGHT DAY

YEARTHEME
2016Stronger Together.
2017Universal Eye Health.
2018Eye Care Everywhere.
2019Vision First.
2020Hope In Sight.

SIGHT DISEASES

  1. Refractive Errors
  2. Cataract
  3. Diabetic Retinopathy
  4. Glaucoma
  5. Amblyopia
  6. Strabismus

REFRACTIVE ERRORS:

The refractive errors include diseases such as

  •  Myopia

Also known as near-sightedness.

  • Hyperopia

Also known as farsightedness.

  •  Astigmatism

Also called distorted vision at all distances.

  •  presbyopia 

loss of the ability to focus up close,which occurs after the age of 50-60 years. 

These can be corrected by surgery or using contact lenses.

CATARACT:

This disease is clouding the eye’s lens. Cataract is not any related eye disorder. It can occur at any age. It could at the time of birth. It can be corrected by surgery and lenses.

DIABETIC RETINOPATHY:

It’s a complication of diabetic patients. It is caused by damage to the blood vessels of the retina, the light-sensitive tissue at the back of the eye that is necessary for good vision. It could be cured by good control of blood sugar, blood pressure, and lipid abnormalities. 

GLAUCOMA:

When the normal fluid pressure inside the eyes slowly rises, this disease is known as glaucoma. This disease is very dangerous and can result in vision loss and blindness. open angle and closed angle are two categories of this disease. It could be cured by proper medical treatment at the proper time.

AMBLYOPIA:

This disease is also called lazy eyes. This disease occurs when the eye and the brain are not working together properly, and results in reduction of vision of one eye. It can be cured by medical treatment.

STRABISMUS:

This disease changes or diverts the position of the eyes of the person. It can cause the eyes to cross in (esotropia) or turn out (exotropia). This could be by birth or genetically developed later.

“The eyes see everything through the heart.” 

FACTS ABOUT HUMAN EYE

  • A normal human eye can focus on about fifty different objects every second.
  • The brain is the only organ in humans which is more complex than the eyes.
  • Approximately 10 million different colors can be distinguished by the human eye.
  • When your eyes are open, it is impossible to sneeze.
  • A candle flame can be detected by the human eyes 1.7 miles away.
  • Only ⅙ of our eyeballs are visible.
  • A human eye blinks about twelve times a minute.
  • The fastest contracting muscle in the body is the eyes.
  • The human eye contracts less than 1/100th of a second.
  • More than one million nerve cells are contained in the optical nerve.
  • The eye is about 1 inch across and weighs about 0.25 ounce.
  • The eye is the only sense organ which remains the same size throughout the life,but ears and nose go on growing by the life.
  • Over 2 million working parts, make an eye.
  • Our eyes are light sensitive.
  • Human eye is the fastest muscle in the body.
  • The most common eye color in the world is brown.
  • The tiger’s night time vision is six times better than the humans.
  • If the human eye was a digital camera, it would have 576 megapixels. 
  • The eye takes only about 48 hours to repair a minor corneal scratch.
  • After conception,the eyes take just two weeks to develop.
  • At the time of birth all babies are color blind.
  • New born babies do not get tears in their eyes, till six weeks.

“Men are born with two eyes, but with one tongue, in order that they should see twice as much as they say.”

This world sight day takes an initiative to make your eyes healthy and good and go for proper eye care treatment.

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Happy World Sight Day.

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