Chief
surgeon
Instrument table
v
Operating table
OPERATING THEATRE
OPHTHALMOPLEGIA
OPERATING THEATRE
Power
Clocks
supply .
Assistant
Operating
Piped gases
surgeon
lamp
and suction
Viewing
screen
Theatre
nurse
Water bowl
Intravenous
drip
Anaesthetist
operating theatre
A specialized hos-
pital room in which surgical procedures
are performed. The risk of infection of
open wounds during surgery is reduced
by a ventilation system that continually
provides clean, filtered air, and walls
and floors that are easily washable. Sur-
geons, assistants, and nurses use sterile
brushes and bactericidal soaps to scrub
their hands and forearms before putting
on sterile gowns, masks, and gloves.
The theatre is equipped with shadowless
operating lights; lightboxes for viewing
X-ray
images; anaesthetic machines (see
anaesthesia, general
);
and a
diathermy
machine, which controls bleeding. A
heart-lung machine
may also be used.
operation
A surgical procedure, usually
carried out with instruments but some-
times using only the hands (as in the
manipulation of a simple fracture).
ophthalmia
An old term for
ophthalmitis
.
ophthalmia neonatorum
A type of
eye
inflammation and discharge
(
oph-
thalmitis
) that occurs in newborn infants,
usually as a result of infection with
gonorrhoea
or
chlamydia
at birth. The
infection is treated with
antibiotic drugs.
ophthalmitis
A term that describes any
inflammatory
eye
disorder. Types of
ophthalmitis include
ophthalmia neona-
torum
and sympathetic ophthalmitis: a
rare condition in which a penetrating
injury to one eye is followed by severe
uveitis
that can cause blindness in the
other eye. Sympathetic ophthalmitis can
be treated with
corticosteroid drugs
, but
removal of the injured eye is sometimes
necessary to save the sight of the other.
ophthalmology
The study of the
eye
and
the diagnosis and treatment of the disor-
ders that affect it. Ophthalmology covers
assessment of vision, prescription of
glasses or contact lenses, and surgery for
eye disorders, such as
cataracts
and
glau-
coma.
(See also
eye, examination of;
optician; optometry; orthoptics.)
ophthalmoplegia
Partial or total para-
lysis of the muscles that move the eyes.
Ophthalmoplegia may be caused by dis-
ease of the muscles themselves, such as
Graves' disease,
or by a condition that
O
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