Glaucoma
1. What is Glaucoma?
Glaucoma is the name used to describe a number of
similar eye conditions that result in damage to the optic nerve
at the point of it leaving the eye. The damage may be caused solely
by an increase in the fluid pressure within the eye or, alternatively,
by a weakness of the optic nerve. However damage is usually due
to a combination of both of these factors.
Chronic Simple Glaucoma
The most common form of glaucoma. Characterized by a gradual rise
in fluid pressure within the eye as the drainage channels around
the iris become blocked.
Acute (or Closed Angle) Glaucoma
Less common than chronic simple form. Unlike chronic simple glaucoma
the blockage of the drainage channels is more sudden and complete.
The underlying cause is a narrowing of the area above the channels,
known as the “angle”, which prevents fluid flow through
to the drainage channels. This results in quite rapid increases
in fluid pressure within the eye.
Secondary Glaucoma
A rise in fluid pressure within the eye as a result of other eye
conditions.
Developmental Glaucoma
A rare condition that affects babies resulting from irregular development
of the eye.
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