Tunel Escleral Flashcards

1
Q

Que es el surco escleral?

A

Apertura exterior del túnel escleral

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2
Q

Donde se debe ubicar el túnel escleral?

A

Entre MX y MXII

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3
Q

Cual es la pared interna del túnel escleral?

A

El piso del túnel

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4
Q

Cual es la pared externa del túnel?

A

El techo del túnel

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5
Q

Longitud del surco escleral

A

7.5 mm

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6
Q

Longitud del límite interno del túnel escleral

A

8.5 mm

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7
Q

Longitud del túnel escleral

A

3.5 mm en región central
4.2 mm en paredes laterales

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8
Q

Profundidad a la que se debe realizar el túnel escleral

A

A la mitad del grosor escleral

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9
Q

Grosor escleral promedio en area quirurgica

A

0.6 mm

(puede ser 1 mm en otras areas del ojo)

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10
Q

Grosor promedio de cámara anterior

A

3 mm

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11
Q

Principal proposito del tunel escleral

A

Permitis salida de la catarata
Funcion de valvula

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12
Q

A que distancia se realiza el surco escleral?

A

1.2 - 2 mm de la zona de transicion limbar

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13
Q

Como se inicia la creacion del tunel escleral

A
  1. Tunel central
  2. Extension lateral del tunel central
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14
Q

Radio de curvatura de la cornea

A

6 mm horizontal
5 mm vertical

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15
Q

Disposicion de la fibras de colageno en esclera

A

Desorganizada, pero con mayor densidad en capas externas

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16
Q

Cantidad de vasos sanguineos perforantes que se ubican en el area quirurgica

A

2-4

17
Q

Anchura de zona de transicio limbar

A

1-1.5 mm

18
Q

Grosor corneal a nivel paralimbar

A

0.6 mm

19
Q

Cuanto tarda el epitelio en cubrir superficie ocular despues de SICS

A

24 hrs

20
Q

Volumen promedio de camara anterior

A

250 ul

21
Q

Tasa de produccion de humor acuoso

A

2 ul/min