According to Medknow’s report on 2014 estimate, the current number of people with visual impairment (which includes both low vision and blindness) is put at 285 million worldwide; 39 million people are blind while 246 million people live with low vision.Ninety percent of the world’s blind population lives in developing countries out of which about 1.2 million people live in Nigeria.
Increasing age is a risk factor for blindness and visual impairment worldwide. The Nigerian National Blindness and Visual Impairment Survey (NNBVIS) (2007) had noted that the prevalence of blindness increases significantly with increasing age, from 0.8% at 40–49 years to 23.3% among those aged ≥80 years.
In the developing countries of Asia, Africa, and the Middle East, the prevalence of blindness ranges from 0.1% in Sri Lanka, to 0.78% in Nigeria, and 2.0% in Pakistan.
This could be attributed to poor technology, minimal eye care services, malnutrition, and poverty. Cotter et al.
In developed countries, blindness is mainly due to disorders of the posterior segment of the eye while in Africa, Asia, and parts of South America, blindness is predominately due to disorders of the anterior segment of the eye (cataract and corneal scaring).
Several studies have shown a rise in the prevalence of certain eye diseases in the elderly.
There are so many eye diseases and infection caused by organisms and genetics such as, Astigmatism, Color Blindness, Ocular histoplasmosis syndrome, Bacterial keratitis etc.
The possibility of having an eye problem is high, here are measures to take to at least prevent them.
A great many eye infections are actually complications of sexually transmitted or genital diseases such as syphilis, chlamydia, gonorrhea, crab lice, herpes simplex, thrush, and hepatitis B, Therefore you can cut down the risk of having an eye infection by practicing safe sexual Habits.
Secondly, endeavor to create a culture of having periodic eye examination as well as living a healthy lifestyle. Know your family history on any eye issue and eat healthy diets- taking in the necessary nutrients and Vitamins such as Vitamin A,E and C needed for healthy eyes.
Avoid smoking, fireworks and direct eye contact to the sun and intense light using sun glasses and also remember to blink regular.
Ophthalmologists and optometrists are trained to recognize various eye infections, therefore If you suspect you have an eye condition or vision problem or you have injured your eye, see an eye doctor immediately.