Midterm

Question 1

MEIBOMIAN GLANDS/G

Answer 1

Physiology
-Sebaceous gland
-prevent tear spillover
-retards evaportion of tears
Biochemistry
-MIEBUM LIPIDS
WAX ESTER (WE)
CHOLESTERYL ESTER (CE)
FREE FATTY ACIDS (FFA)
PHOSPOLIPIDS (PL)
CERAMIDES (CER)

Question 2

ZEIS GLAND/G

Answer 2

Physiology
-SEBACEOUS GLAND
-PREVENT EYELASHES BECOMING DRY AND BRITTLE
BIOCHEMISTRY
-SEBUM RICH IN TRIGLYCERIDES,SQUALENE,FREE CHOLESTEROL, GLYCERIDES AND WAX ESTER

Question 3

MOLL GLANDS/G

Answer 3

Physiology
- MODIFIED APOCRINE SWEAT GLANDS
-RETARDS EVAPORATION
BIOCHEMISTRY
-SEBUM WAX ESTERS AND SQUALENE
-FOR IMMUNE DEFENSE IMMUNOGLOBIN A (IGA)

Question 4

ACESSORY GLANDS

Answer 4

Physiology
- SEROUS GLAND
-SUPPLY CONSTANT LUBRICATION
BIOCHEMISTRY
- SECRETES BASAL TEAR
-ANTI-BACTERIAL AGENT -LYSOZYME

Question 5

Common eyelids abnormalities

Answer 5

Blepharitis
Stye
Chalazion
Hidrocystoma
Nevus
Seborrheic karatosis

Question 6

Blepharitis

Answer 6

Bacteria or skin condition such as dandruff of the scalp

Causes:
Itching,stinging,redness,burning

Question 7

Blepharitis

Answer 7

Bacteria or skin condition such as dandruff of the scalp

Causes:
Itching,stinging,redness,burning

Question 8

Stye

Answer 8

Bacteria:
Staphylococcus bacteria

Causes:
-Red lump on your eyelids similar to boil or pimple
-eyelid pain
-eyelid swelling

Question 9

Chalazion

Answer 9

PHYSIOLOGY
-IL-PRODUCING GLAND IN THE EYELID BECOMES CLOGGED
CAUSES
-LUMP OR SWELLING ON YOU UPPER OR LOWER EYELIDS

Question 10

HIDROCYSTOMA

Answer 10

Physiology
-obstruction of the eccrine sweat glands which causes retention of secretions.
Cause:
Benign
Asymptomatic lesion

Question 11

Nevus

Answer 11

Physiology
- caused by a build up of melanin pigment

Causes:
Colored growth on or in your eye

Question 12

SEBORRHEIC KARATOSIS

Answer 12

Physiology
- GENES, SKIN AGING
CAUSE
PALE,BLACK BROWN GROWTH MORE LIKE

Question 13

Eyelashes

Answer 13

Function:
-Protect the eyes from foreign objects
-regulates the amount of light
-maintain the proper position of the globe within the orbital contents
-maintain the integrity of the corneal surface
-tear flim maintenance

LAYERS:
-SKINS
-SUBUCUTENOUS AREOLAR LAYER
-ORBITAL SEPTUM
-POSTERIOR MUSCLE SYSTEM
-TARSAL PLATE
-PALPEBRAL CONJUNCTION

Question 14

Eyebrows

Answer 14

Function:
Prevent sweat, water and other debris

Layers:
-skin
-muscle
-fat
-aponeurosis
-pericranium

Question 15

Eyelashes

Answer 15

Function:
They keep foreign objects such as dirt or dust

Layers
3 last layers top middle and bottom