Disease of uveal tract

Question 1

Aperture of pupil?

Answer 1

4mm

Question 2

Macroscopic structure of iris?

Answer 2

It is divided into two zones by collarette into ciliary and pupillary zone. ciliary zone has radial streaks and crypts(peripheral) and (central). Pupillary zone lies between collarette and pigmented frill.

Question 3

———- is the thickest part of iris ———— is the thinnest part of iris

Answer 3

Collarette and iris root

Question 4

Layers of iris?

Answer 4

Anterior limiting layer,stroma, anterior pigmented epithelial layer and posterior pigmented epithelial layer

Question 5

Colour of iris is due to which layer

Answer 5

Anterior limiting layer

Question 6

Cells of anterior limiting layer?

Answer 6

Melanocytes and fibroblasts

Question 7

Cells / muscles of iris stroma are?

Answer 7

Sphincter pupillae,dilators pupillae,melanocytes,macrophages,lymphoblasts,fibroblasts and mast cells.

Question 8

Blood vessels and nerves are present in ———— layer of iris

Answer 8

Stroma

Question 9

Pigmented frill is formed by————-

Answer 9

Posterior pigmented epithelial layer

Question 10

Layers of ciliary body are——-

Answer 10

From outward to inward < supra ciliary lamina, stroma, layer of pigment epithelium , layer of non pigmented epithelium internal limiting membrane

Question 11

Fill in the blanks. 1.Supracilliary lamina is continuation of————. 2layer of pigmented epithelium is continuation of ————3. Layer of non pigmented epithelium is continuation of—————-

Answer 11

1. Suprachoridal lamina. 2. Retinal pigmented layer 3. Sensory retina

Question 12

Following continue anteriorly as ———-1. Supraciliary lamina 2. Layer of pigmented epithelium. 3 layer of non pigmented epithelium

Answer 12

1. Anterior limiting layer 2. Anterior pigmented epithelial layer 3. Posterior pigmented epithelial layer

Question 13

Muscles of ciliary body are———-

Answer 13

Non striated

Question 14

Name the muscles of ciliary body

Answer 14

Longitudinal or meridional, circular and radial

Question 15

Nerve supply of ciliary muscle

Answer 15

Parasympathetic through short ciliary nerve

Question 16

No of ciliary process

Answer 16

70-80

Question 17

Dimensions and functions of ciliary process

Answer 17

2mm long, o.5 mm dis. White in colour. Lined by two layers of epithelium. Production of aqueous humour

Question 18

Layers of choroid are

Answer 18

Outward to inwards < supra choroidAl lamina,stroma, basal membrane

Question 19

Content of suprachoroidal space are

Answer 19

Long and short posterior ciliary arteries and nerves

Question 20

Bulk of stroma of choroid is formed by

Answer 20

Vessels

Question 21

Layers of large vessels in stoma of choroid is

Answer 21

Outer most and hailers layer

Question 22

Layer of medium sized vessels in choroid stroma is

Answer 22

Settlers layer

Question 23

Innermost layer of choroid stroma is

Answer 23

Choriocapillaries

Question 24

Basal lamina of choroid is called as

Answer 24

Burchs membrane

Question 25

Venous drainage of choroid is by

Answer 25

Vortex veins

Question 26

Burchs membrane can rupture in

Answer 26

Lacquer cracks and angioid streaks