The Braille - Your Eyes

The braille is a system of raised dots that is read using finger touch. It was invented by Louis Braille for those who are blind or have impaired vision. Louis Braille, a boy who became blind having been involved in an accident at age 3, invented the Braille system at age 12 to assist the visually impaired with reading. Visual impairment is a decreased ability to see to a degree that cannot be fixed by using glasses or contact lenses. When there is complete vision loss, it is known as blindness.
There are various causes of blindness. Major and most common causes of visual impairment are preventable and treatable, others are congenital. These causes include:
   ·         Trachoma – a contagious bacterial infection resulting in inflammation on the inner lid’s surface.
  ·         Onchocerciasis – Also known as river blindness is the second most common cause of blindness due to infection. It is caused by a parasitic worm.
  ·         Childhood blindness- Group of diseases or conditions that occur in childhood that may result in blindness later in life.
  ·         Glaucoma – Involves the damage of the optic nerve that connects the eyes to the brain.
  ·         Age-related macular degeneration – This is the deterioration of a small portion of the retina (macula) that is responsible for central vision.
  ·         Corneal opacities- Eye problems that may lead to scarring or clouding of the cornea.
  ·         Diabetic retinopathy – Is a diabetes complication caused by damage to the blood vessels of the light-sensitive tissue at the back of the eye (retina).
  ·         Cataract – Is a clouding of the eye’s natural lens and is the most common cause of visual impairment among persons above 40 years of age.
  ·         Infections
  ·         Injuries
Visual impairment is unequally distributed across all age groups. More than 65% of persons of visually impaired persons are aged 50 and above. A significantly higher risk of being visually impaired is observed among females compared to males. People in developing nations are also more prone to becoming visually impaired. Other risk factors to becoming visually impaired include: smoking, over-exposure to sunlight and unhealthy diets.
Celebrating the World Braille Day reminds us that we can invent solutions to problems rather than create problems. Pamper your eyes, it helps you see the world.

By Ifeyinwa Ugo-Amadi

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