Ophthamology Flashcards
What is the technical term for the eyeball?
The globe
What is the technical term for the eye socket?
The orbit
What is the technical term for everything except the globe?
The adnexa
What are the components of the anterior segment of the eye?
The cornea, anterior chamber, iris, iridocorneal angle, ciliary body, and lens
What are components of the posterior segment?
Choroid, retina, optic nerve, posterior sclera, vitreous humor
What are the 4 recuts muscles of the eye
Ventral rectus, dorsal rectus, medial rectus, and lateral rectus
What are the oblique muscles of the eye?
Dorsal/superior oblique and ventral/inferior oblique
Which muscle pulls the eye back?
Retractor bulbi muscle
What is the mucous membrane that lines the inside of the eyelid?
Palpebral Conjunctiva
What muscle elevates the upper eyelid?
What muscles closes upper and lower eyelid?
Levator palpebrae superioris
Orbicularis oculi
What is the sebaceous gland at the tip of the eyelid?
Meibomian glands
What are the components of the eyelid?
Palpebral conjunctiva, meibomian gland, tarsus, levator palpebrae superioris, and obicularis oculi
What does the meibomian gland do? And where does it open at?
Secretes lipid layer of tear film and it opens at the mucocutaneous junction
What is the collagen sheet in the eyelid?
The tarsus which gives the eye rigidity and provides a place for muscle attachment
What is the innervation of the eyelid?
V - Sensory
III and VII - Motor
Autonomic - Sympathetic nerve
What nerve innervates levator palpebrae superioris
CN III
What nerve innervates orbicularis oculi?
CN VII
What is the muscle that lowers the inferior eyelid?
Malaris Muscle
What is the Malaris muscle innervated by?
CN VII
What is the autonomic muscle of the eyelid?
Mueller’s Muscle
What does Mueller’s muscle do?
A smooth muscle that provides tone to the tarsus
What are the 2 ligaments of the eye?
The Medial and lateral canthal ligaments
What is the purpose of the canthal ligaments?
Anchor the medial and lateral canthus to periosteum of the orbital rim
What is the conjunctive?
The conjunctiva is a mobile, elastic mucous membrane