fisiologia de la visiÓn - sistema lagrimal

8/18/2019 FISIOLOGIA DE LA VISIÓN - SISTEMA LAGRIMAL

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SISTEMA LAGRIMAL YLAGRIMA


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PELICULA

LAGRIMALCAPA LIPIDICA

CAPA ACUOSA CAPA DEMUCINA

GLANDULAMEIBOMIO, ZEISS,

MOLL

GLANDULALAGRIMAL ,

KRAUSE,

WOLFRING

CELULASCALICIFORMES ,GLAND. MANZ,

CRIPTAS DE HENLE

0,1 a 0,5 mi!a"R#$!a"a E%a&'!ai'( )$#("i'( "*!+iaC'($- #"$#!#" #'#"$#!', i&i'"

/,5 a 10 Mi!a"S*mi(i"$!a O a #&i$#i''!(#aS*"$a(ia" a($ia$#!ia(a"2i"'3ima 4 a$'#!!i(a6C'($- a7*a, "a#",

i(m*('7'*i(a", #(3ima",7*'"a, *!#a, m#$a'i$'",##$!'i$'", &!'$#i(a",i'&'im#!'"

0,0 a 0,05 mi!a"C'm&*#"$aG*'&!'$#i(a"Ha# 8i!'+a a "*!+i#2a8i#!# ami!'%#'"ia#"6


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Si"$#ma a7!ima


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COMPONENTES SISTEMA LAGRIMAL

SECRETOR

• GLANDULA LAGRIMALPRINCIPAL

•

GLANDULA DE MEIBOMIO• GLANDULA DE ZEISS• GLANDULA DE MOLL• CELULAS DE MANZ• CRIPTAS DE HENLE• GLANDULA DE KRAUSSE• GLANDULA DE WOLFRING• CELULAS CALICIFORMES

EXCRETOR

• PUNTOS LAGRIMALES• CANALICULOS• SACO LAGRIMAL• CONDUCTO

LACRIMONASAL


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GLANDULA DE MEIBOMIO• G9(*a" "#9#a"• Caa 79(*a 'm&*#"$a &'!

m:$i&#" ai('" ;*# '($i#(#(

m#i'i$'", :$*'" a$#!a#",*( '(*$' #($!a ) *('(*$' #


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GLANDULA DE ZEISS

GLANDULA DE ZEISS

• G9(*a "#9#a

*(i'*a!• L'ai3aa #( '!#

# &a!&a'• S#!#i=( "#9#a

8aia a &'!i=( m#ia# '>*' &i'"'.

GLANDULA DE MOLL

• G9(*a "*'!i&a!aa&'!i(a

• S# #(*#($!a #( #'!# # &9!&a'

• R#a$i%am#($# 7!a(#) # '!ma $**a!.

• ?i#!$#( "* '($#(i'8aia a" "$a@a"


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GLANDULA LAGRIMAL

PRINCIPAL• F'!ma # am#(!a 20 mm6, #( a '"a a7!ima• La i(#!%ai=( &a!a"im&9$ia # (#!%i' aia. R##' 2$!i7#mi('6. E (#!%i'

a7!ima, #!i%aa # (#!%i' '$9mi', "*mi(i"$!a # 'm&'(#($# "#("'!ia# a 79(*a a7!ima.

• I!!i7ai=(- a!$#!ia a7!ima 2a a!$#!ia '$9mia6. R#$'!(' %#('"'- %#(a'$9mia "*!i'!.

E &#(' #"a!!'' # a 79(*a a '" a@'"


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• G9(*a $**'ai(a!,;*# "# 'm&'(# #m*8'" =*'" , aa=*' '($i#(# m*8'"

ai('". L'" ai('"'($i#(#( "=' *a""#!'"a" .

• La" *a" mi'#&i$#ia#"im&*"a( a "#!#i=(.

•

L'" '(*$'" "#!#$'!#""# i!i7#( 8aia aa' )"# a!#( &'! '!i+i'""#&a!a'" #( # '(' #"a'.


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GLANDULAS DEKRAUSE

• Si$*aa" #( F'!(i<• E"$!*$*!am#($#

"imia!#" a a"79(*a" a7!ima#".

GLANDULA DEWOLFRING

• Ta!"''(*($i%a#".•

P!'*#( a &a!$#a*'"a # a" 97!ima"


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CELULAS DE MANZ CRIPTAS DE HENLE

•

E( '(*($i%a $a!"a• S'( &i#7*#" '

i(%a7i(ai'(#" ##&i$#i' # a'(*($i%a

CELULAS CALICIFORMES

E( # #&i$#i' # a'(*($i%a "# '("i#!a('m' 79(*a"m*i(a!#" '!maa" &'!

*(a :(ia *a

• R'#a( a im' ) "'(a" !#"&'("a#" # a"#!#i=( # *(a &a!$#

# a m*i(a


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E(3ima" &!'$#>(a" a($ia$#!ia(a"

• Li"'3ima• B#$ai"i(a•

La$'#!!i(a• T!a("#!!i(a• C#!*'&a"mi(a•

I(m*('7'*i(a" 2"i"$#mai(m*(''7i'6 I7A, I7G 2m*)#+i#($#6, I7M, I7E, I7D


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ENZIMAS• D#"8i!'7#(a"a a$ia- 2LDH6 - Faii$a #

&!'#"' # $!a"'!mai=( # 7*'"a• E(3ima" i"'"'mia"- a7'i$'"i"

• Amia"a- $i &a!a '!ma! a3*a!#"• P#!'


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PROPIEDADES FISICAS

• &H- ., 2,,6

Aia #( a ma@a(a i'


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FUNCION PELICULALAGRIMAL

• F*(i=( =&$ia• F*(i=( M#9(ia• F*(i=( N*$!ii'(a '!(#a•

F*(i=( A($ia$#!ia(a• H*m#$ai=( '(*$' (a"a


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CICLO DE LA PELICULALAGRIMAL

S#!#i=( a"a- 0, . mi!'i$!'" &'!mi(*$'• 15 J #%a&'!a• 5J a"'!# &'! #&i$#i'"• 0J "# !#(a &'! a %>a a7!ima

S#!#i=( R##a- 2a($' ' i!!i$ai=(6G9(*a &!i(i&a 2&a!a"im&9$i'6, !##a&'! i!!i$ai=( $!i7#mi(a


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GLICOCALIX

• P!'*i' &'! *a" #&i$#ia#" '!(#a#"• C'm&*#"$' &'! 7i'&!'$#>(a" )

&!'$#'7ia('" ;*# '($!i*)#( a aa8#!#(ia # a m*i(a a a "*!+i#• Ti#(# a &!'&i#a # +a! a7*a, #%i$a('

;*# a *a "# "#;*#.

• BUT- N'!ma 15 "#7 A('!ma- m#('! #10 "#7


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DRENAE LAGRIMAL• P*($'" La7!ima#" 2mm6• Ca(a>*'" 2mm6• Sa' a7!ima 210mm6- #( a(a

'!ma' &'! # *(7*i" ) #

ma


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IRRIGACION DEL SISTEMA ECRETOR

• A!$#!ia '$9mia a $!a%" # aa!$#!ia &a!a

• Ma


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INER?ACION DEL SISTEMA

ECRETOR LAGRIMAL

• N#!%i' $!i7#mi('• N#!%i' aia 2m'$'!a6


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?AL?ULAS

• Bochdaleck &i#7*# m*'"' #( # '(*$'a7!ima, #!a # &*($' a7!ima

• !al"#la de $ol%& E( '" a(ai*'"

• Ro'e()#lle* o H#'chke #( a *(i'( #($!# #a(ai*' ) "a' a7!ima

• K*a#'e o Be*a#d- &i#7*# #( # '(' # "a'a7!ima #(ima # '(*$' (a"a

• !al"#la de %a+lle$e* , Ha'(e*- &i#7*# # am*'"a # '" '(*$'" (a"'a7!ima#" &'!'(# "'( !#(aa" a" 97!ima" a m#a$' (a"ai(#!i'!


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E( '" &*($'" #"$a( a" %a%*a" #

'$3


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CICLO DE LA PELICULA

LAGRIMALDi"$!i*i=( # aa7!ima- La !*&$*!a # a

>*a a7!imai(*# # &a!&a#'

- A*m*ai=( a7!ima

m#(i"'Q # 1mm- Pa"' a a %>a a7!ima-

&*($'"a(ai*'" "a'" a7!ima#"


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PATOLOGIA

OO SECO- MULTIFACTORIALPOR DEFECTO O-OSECO

• La!im'#+i#($#• A$#!ai'(#" #( a

a&a i&ia• A$#!ai'(#" #( a

a&a m*i('"a

POR EXCESO

• P'! i!!#7*a!ia#" #('" &a!&a'"


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ECTROPION.UERATINIZACION

CON-UNTI!AL


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INFLAMACIONES DE LA GLANDULA

LAGRIMAL• Da!i'a#(i$i"


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INFLAMACION SISTEMAECRETOR

• DACRIOCISTITIS


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• DACRIOCISTOCELE CONGENITODia$ai'( ;*i"$ia "a', i;*i'am(i'$i'


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• ESTENOSIS PUNTOS LAGRIMALES


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TRATAMIENTOS


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• La *!iai'( '*a! #(# #-• Pa!&a#' 2&a!ai"i" aia#"6

&a!&a#' ('!ma 15 %##" &'!mi(*$'

• S*!+i# '*a! i"a- &$#!i7i'(,#!m'i#",;*#!a$i(i3ai'( '!(#a

• Caia ) a($ia i*a a7!ima


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TES MEDICION

S#!#i=( a*'"a- S8i!m#! N'!ma 100 mm #( 5 mi(, a*$'" - 5 mmGM#(i"' a7!ima- 1mm

fisiologia de la visiÓn - sistema lagrimal

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