253 million in the world face vision impairment: How likely are you to be affected?

A fact check on vision impairment

  1. As per the World Health Organisation around 253 million in the world live with vision impairment
  2. Out of the 253 million around 36 million are blind
  3. As much as 217 million people in the world live with moderate or severe vision impairment
  4. 80% of those living with vision impairment are aged above 50
  5. Chronic eye diseases are the main cause of vision impairment globally
  6. More than 80% of the vision impairment cases can either be cured or prevented


How is vision function classified?

As per the International Classification of Diseases vision function can be classified into 4 categories. These include


  • Normal vision
  • Moderate vision impairment
  • Severe vision impairment
  • Blindness


What causes vision impairment?

As per recent estimates and studies of the World Health Organisation the causes of vision impairment both moderate and severe are as followed

  • Glaucoma
  • Un-operated Cataract
  • Macular degeneration with age
  • Uncorrected refractive errors
  • Diabetic Retinopathy

Out of these causes Uncorrected Refractive Errors contribute to most cases of vision impairment.  

Causes of blindness


Causes of blindness include

  • Glaucoma
  • Un-operated Cataract
  • Uncorrected refractive errors


As for blindness the un-operated cataract is the leading cause of blindness.  

Who is vulnerable to vision impairment?

Those aged above 50

As stated earlier people who are aged above 50 form as much as 80% population of the visually impaired population. As the world population is growing older and the number of people in this age bracket is increasing the percentage of people affected by vision impairment are also increasing and this we must learn is alarming.


As per the findings of the World Health Organisation around 19 million children below the age of 15 face vision impairment. Out of these 19 million around 12 million children have vision impairment because of refractive errors and sadly around 1.4 million of these have irreversible blindness.

Also Read: Coolest Ways to lose belly fat: Why sweat or diet?

Clearly, now having learned the causes of vision impairment we should now act responsibility to save not just ourselves but also people around us from being affected to irreversible extents. Vision as we know is god of gift and we cannot even imagine the plight of those who have lost this gift hence we must accept the responsibility to spread awareness about the causes to our loved ones.

How beautiful would the world be if everyone can see its beauty!

Leave your own views on this issue in below comment box