-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
1/25
Chambers of the Eye
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
2/25
Chambers of the Eye
Boundaries are the layers of the eyeand the lens
1. Anterior chamber
2. Posterior chamber
3. Vitreous chamber
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
3/25
Chambers of the Eye
Anterior chamber Space between
the cornea and
the iris Posterior
chamber Space between
the posteriorsurface of the irisand the anteriorsurface of thelens
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
4/25
Chambers of the Eye
Vitreouschamber Space between
the posteriorsurface of thelens and theneural retina
Contains "itreousbody# a lar$e$elatinous massof transparentconnecti"e tissue
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
5/25
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
6/25
Cornea
%ens
A!ueous humor Vitreous body
Components of refractile media ofthe eye
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
7/25
&efractile 'edia ()ioptric'edia*
Alter the path of li$ht rays byrefraction for them to be focused onthe photoreceptor cells of the retina
Components+cornea# a!ueous humor# lens# "itreous
body
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
8/25
&efractile 'ediaComponents
Cornea Anterior window of the eye
Chief refracti"e element of the eye
,t has a refracti"e inde- of 1.3/.
%A0E&S (3 cellular# 2 noncellular*+ Corneal epithelium noneratini4ed#
stratied s!uamous
Bowman5s membrane
Corneal stroma
)escemet5s membrane
Corneal endothelium simple# s!uamous
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
9/25
Corneal %ayers
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
10/25
&efractile 'edia+ Cornea
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
11/25
&efractile 'edia+ Cornea
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
12/25
Corneal endothelium Bowmans membraneStroma
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
13/25
Corneal endothelium Bowmans membraneStroma
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
14/25
Corneal endothelium Bowmans membraneStroma
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
15/25
&efractile 'ediaComponents
%ens6ransparent# crystalline# biconca"e
structure suspended from the inner
surface of the by 4onule of 7inn Second in importance to cornea in
refraction of li$ht rays
elastic8 its shape can under$o sli$ht
chan$es6ension of ciliary muscle ACC9'9)A6,9:
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
16/25
&efractile 'ediaComponents
%ens 3 Principal Components+
1. Lens capsule composed of
proteo$lycans and type ,V colla$en8pro"ides the place of attachment for thebers of ciliary 4onule
2. Lens epithelium sin$le layer of cuboidal
cells3. Lens fbers hi$hly elon$ated# terminally
di;erentiated cells that appear as thin#
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
17/25
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
18/25
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
19/25
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
20/25
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
21/25
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
22/25
&efractile 'ediaComponents
A!ueous =umor =as an inor$anic composition similar to
that of plasma but almost no protein
Secreted by ciliary processes intoposterior chamber
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
23/25
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
24/25
&efractile 'ediaComponents
Vitreous Body %ar$e $elatinous mass of transparent
connecti"e tissue
>>? water ("itreous humor*# withcolla$en brils and hyaluronate#contained within an e-ternal laminacalled "itreous membrane
Hyalocytes synthesi4e hyaluronateand colla$en
-
7/24/2019 Histology of the Eye: Chambers & Refractile Media
25/25
&efractile 'ediaComponents
6he a!ueous and "itreous body ha"eonly minor roles in refration
=owe"er# A!ueous humor plays important role in
pro"idin$ nutrients to 2 a"ascularstructures# the lens and cornea
6he "itreous body help maintain theposition of the lens and helps eep theneural retina in contact with the &PE