Protective Structures

1
Protective Structures

• Eyelids (palpebrea) windshield wipers, continual
  blinking keeps eye surface lubricated and free
  from debris
• Palpebrea fissure the gap that separates the
  upper and lower lid
• Medial Lateral Canthus the areas where the
  eyelids are connected

2
Protective Structures

• Eyelashes Robust hairs that prevent foreign
  matter and insects from reaching the eye surface
• Tarsal glands Glands that secrete lipid rich
  product that keeps the eyelids from sticking
  together
• Lacrimal caruncle located at the medial canthus,
  its a gland that makes eye sand

3
Protective Structures

• Palpebral conjunctiva mucous membrane that
  covers the inside of the eyelid, supplies fluid
  that washes the eye
• Ocular conjunctiva transparent membrane covers
  eye up to the edge of the cornea, also supplies
  fluid that washes the eye