an Ophthalmoscope, light is shone into the eye and the retina and the
optic nerve is examined. This is called as Examination
of the Fundus. This
is what the eye-doctor sees when he peeps into your eye! Through the
transparent cornea, into the dark interior.
in Dark Below:
When he looks into the eye with the
Ophthalmoscope, he sees a orange glowing
interior. That is the retina. The retina is actually transparent. It appears
bright because of blood vessels in the choroid layer below. It is like looking
at your ear against the bright sunlight. The yellow circle is the Optic
Nerve, the cable of vision! A red,
shiny dot attracts attention. That is the macula.
If indicated, the exam of periphery of the retina is done
with an Indirect ophthalmoscope. The ophthalmologist wears this instrument on the head and
focuses the light into the eye with a lens held in his hand. This is usually
done in a dark room.