Definition of terms

Diabetic
retinopathy
–
also known as Diabetic eye disease is when damage occurs to the retina due to
diabetes. It can eventually lead to blindness.
Retina– the retina is the third and inner
coat of the eye which is a light sensitive layer of tissue.
Macula– the macula is an oval-shaped
pigmented area near the center of the retina of the human eye.

Vascular – relating to, affecting or consisting
of a vessel or vessels, especially those which carry blood.
Occlusion – the blockage or closing of a blood
vessel or hollow organ
Dilation – the action of stretching or
enlarging an organ
Proliferative – growing or multiplying in parts as
in budding or cell division or by procreation
Vitreous
humor
– the
transparent jelly like tissue filling the eyeball behind the lens
Cataract – a medical condition in which the
lens of the eye becomes progressively opaque, resulting in blurred vision.
Optic
nerve
– The
second part of cranial nerves transmitting impulses to brain from the retina at
the back of the eye.
Oedema – a condition characterized by an
excess of watery fluid collecting in the cavities or tissues of the body
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