Structure
-
of Eye
functional
Anatomy :
•
Human
Eyeball ( but bus oculi ) =
Globe shaped with diameter -
-
24mm
Two
segments Anterior [ small lots ]
°
-
1- '
.
1- Posterior [
Larger ,
5/6 th
with radius - 8mm
]
• Center g Anterior Curvature .
-
Ant .
pole
Posterior curvature = Post -
pole
o
line
joining
both poles Optic -
. axis
Line
point in little medial to ant pole and
joining
°
a cornea .
,
fovea centrale 's ,
situated lateral to
post pole
.
= Visual axe 's .
°
light rays pass through visual axis
g eyeball .
Orbital
cavity
.
sloth part is situated in Orbital
cavity / Eye socket .
.
A thick layer g Areolar tissue in
present btw bone and eyeball .
attached to Orbital Muscles
°
Eyeballs are
cavity by ocular
Eyelids
. Protect eyeball from foreign particles .
Margins of eyelids have sensitive hair called the cilia
°
.
•
There are around too -
150 cilia in
upper eyelid and 50 -
75
in lower eyelid .
dust particles contact
• lnlhen come in .
it causes
rapid blinking .
•
Mei bosnian
gland and some sebaceous
glands are also found in
eyelids .
, these
o
Infection g glands →
Eye sty
conjunctiva :
•
Thin mucus membrane which covers the
exposed part g eye
.
fig Eye sty
. .
• Part g Conjunctiva covering eyeball Bulbar portion .
.
Part
covering eyelid Palpebral portion
°
=
lubricated
Surface conjunctiva by
in
g
•
tear
them
film g
.
Lacrimal Gland :
situated shelter bone
• It in in g ,
forming
and outer border wall
upper g g eye
socket .
°
Tear flows over
conjunctiva via lacrimal
drains
gland and into nose .
( Tears
It contains Gland > lacrimal duets lacrimal
lysozyme
•
°
> sac >
that kills bacteria .
Naso lacrimal duet > Nose .
• Sec . in controlled
by Paras
ym Lull
.
cranial ) Nerve .
fatally Eyeball
°
Three
layers :
ca ) Outer
layer = Cornea & Solera
( bi Middle layer choroid
ciliary body and iris
-
.
.
(c) Inner layer =
Retina
-
of Eye
functional
Anatomy :
•
Human
Eyeball ( but bus oculi ) =
Globe shaped with diameter -
-
24mm
Two
segments Anterior [ small lots ]
°
-
1- '
.
1- Posterior [
Larger ,
5/6 th
with radius - 8mm
]
• Center g Anterior Curvature .
-
Ant .
pole
Posterior curvature = Post -
pole
o
line
joining
both poles Optic -
. axis
Line
point in little medial to ant pole and
joining
°
a cornea .
,
fovea centrale 's ,
situated lateral to
post pole
.
= Visual axe 's .
°
light rays pass through visual axis
g eyeball .
Orbital
cavity
.
sloth part is situated in Orbital
cavity / Eye socket .
.
A thick layer g Areolar tissue in
present btw bone and eyeball .
attached to Orbital Muscles
°
Eyeballs are
cavity by ocular
Eyelids
. Protect eyeball from foreign particles .
Margins of eyelids have sensitive hair called the cilia
°
.
•
There are around too -
150 cilia in
upper eyelid and 50 -
75
in lower eyelid .
dust particles contact
• lnlhen come in .
it causes
rapid blinking .
•
Mei bosnian
gland and some sebaceous
glands are also found in
eyelids .
, these
o
Infection g glands →
Eye sty
conjunctiva :
•
Thin mucus membrane which covers the
exposed part g eye
.
fig Eye sty
. .
• Part g Conjunctiva covering eyeball Bulbar portion .
.
Part
covering eyelid Palpebral portion
°
=
lubricated
Surface conjunctiva by
in
g
•
tear
them
film g
.
Lacrimal Gland :
situated shelter bone
• It in in g ,
forming
and outer border wall
upper g g eye
socket .
°
Tear flows over
conjunctiva via lacrimal
drains
gland and into nose .
( Tears
It contains Gland > lacrimal duets lacrimal
lysozyme
•
°
> sac >
that kills bacteria .
Naso lacrimal duet > Nose .
• Sec . in controlled
by Paras
ym Lull
.
cranial ) Nerve .
fatally Eyeball
°
Three
layers :
ca ) Outer
layer = Cornea & Solera
( bi Middle layer choroid
ciliary body and iris
-
.
.
(c) Inner layer =
Retina
