Cornea
Light enters the front clear wall of the eye
called the cornea.
Iris
Light then passes through pupil, an opening
in the colored part of the eye called the iris.
The iris can open wide (dilate) to let in
more light when it is dark, or close
(constrict) to let in less light when it is
bright.
Lens
Located behind the iris is the lens. The lens
changes shape to focus objects at near or
at a distance. When the lens becomes
cloudy it is then called a cataract.
Vitreous
The eye is filled with a substance called
vitreous. Vitreous is like a thick gel in
children and a much thinner liquid in adults.
Retina
Lining the eye is the retina. The retina is like
the film in a camera that takes a picture of
the images that we see.
Optic Nerve
The images on the retina are then sent to
the brain by way of the optic nerve located
at the very back of the eye.
Common eye problems
South Texas Eye Consultants answers a few questions about
common eye disorders.
What is Astigmatism?
A condition where the shape of the cornea becomes
elongated - the shape is more like a football rather than
a baseball.
What is Nearsightedness?
Nearsightedness (myopia) is a condition where the
shape of the eye is too long or the shape of the cornea
is too steep. This results in images focusing in front of
the retina instead of on it.
What is Farsightedness?
Farsightedness (hyperopia) is a condition where the
shape of the eye is too short or the shape of the
cornea is too flat. This results in images focusing in
back of the retina instead of on it.
What is Presbyopia?
Presbyopia is a condition when the lens of the eye
loses its elasticity. This results in the need for reading
glasses in order to focus on close objects.
Welcome, and thank you for visiting the South Texas Eye Consultants
website. In this section we provide
information about common eye disorders, as well as
explain the parts of the eye, and how the eye functions. Select
from the choices above to discover how you see. Enjoy,
and if we can be of further assistance please let us know.