Eye Disease, Vision Health And Blindness.
                     EYE DISEASE, 
VISION 
HEALTH AND 
BLINDNESS
Introduction
Most people have eye 
problems at one time or 
another. Some are minor and 
will go away on their own, or 
are easy to treat at home. 
Others need a specialist’s 
care.
Source: www.webmd.com
Eyestrain
Anyone who reads for hours, 
works at a computer, or 
drives long distances knows 
about this one. It happens 
when you overuse your eyes. 
They get tired and need to 
rest, just like any other part 
of your body.
Source: www.webmd.com
Red Eyes
Red eyes could be a 
symptom of another eye 
condition, like conjunctivitis 
(pinkeye) or sun damage 
from not wearing shades 
over the years. If over-the-
counter eye drops and rest 
don’t clear it up, see your 
doctor.
Source: www.webmd.com
Night 
Blindness
It’s a symptom, not a problem in 
its own right. Nearsightedness, 
cataracts, keratoconus, and a 
lack of vitamin A all cause a type 
of night blindness that doctors 
can fix.
Some people are born with this 
problem, or it might develop 
from a degenerative disease 
involving the retina, and that 
usually can’t be treated.
Source: www.webmd.com
Cross Eyes 
(Strabismus) 
and 
Nystagmus
If your eyes aren’t lined up with 
each other when you look at 
something, you could have 
strabismus. You might also hear 
it called crossed eyes or walleye.
This problem won’t go away on 
its own. Sometimes you can go 
to vision therapy with an eye 
doctor to help strengthen the 
weak eye muscles. 
Source: www.webmd.com
Colorblindne
ss
When you can’t see certain 
colors, or can’t tell the 
difference between them 
(usually reds and greens), 
you may be colorblind. 
It happens when the color 
cells in your eye (the doctor 
will call them cone cells) are 
absent or don’t work.
Source: www.webmd.com
Uveitis
This is the name for a group 
of diseases that cause 
inflammation of the uvea. 
That’s the middle layer of the 
eye that contains most of the 
blood vessels.
Source: www.webmd.com
Presbyopia
This happens when you lose 
the ability, despite good 
distance vision, to clearly see 
close objects and small print.
After age 40 or so, you may 
have to hold a book or other 
reading material farther away 
from your eyes to make it 
easier to read. Sort of like 
your arms are too short.
Source: www.webmd.com
Dry Eyes
This happens when your 
eyes can't make enough 
good-quality tears. You might 
feel like something is in your 
eye or like it’s burning. 
Rarely, in severe cases, 
extreme dryness can lead to 
some loss of vision. 
Source: www.webmd.com
Retinal 
Disorders
The retina is a thin lining on 
the back of your eye that is 
made up of cells that collect 
images and pass them on to 
your brain. Retinal disorders 
can damage the retinal cells 
andblock this transfer.
Source: www.webmd.com