Ocular anatomy Flashcards
Muscle of Riolan
“Roll Tide Divide”
Rotates… Keeps tight against eyeball… And divides into anterior and posterior portion
Lateral wall of orbit
“Great-Z”
Greater wing of sphenoid and Zygomatic
strongest wall
Roof of orbit
“Front Less”
Frontal bone
Lesser wing of sphenoid
EOM actions
“SIN- RAD” and “O’s to the Nose”
Superior= Intorsion
Recti (superior and inferior)= adduct
Innervation to EOMs
LR6SO4
what runs through the Foramen Rotundum
"Max is rotund" Maxillary division (V2)
What runs through the Foramen Ovale?
"Mandi is Oval" Mandibular division (V3)
What runs through the Cav sinus?
3,4,6, V1, V2
WHat run through the Superior orbital fissure and the common tendinous ring?
“NOA nerves”
Nasociliary
Oculomotor
Abducens
What runs through the foramen spinosum?
“SPIN-MMA”
Middle meningeal Artery
Floor of the orbit
“My Pal gets his z’s on the floor”
Maxillary (majority/ weakest), palatine, zygomatic
What runs through the stylomastoid foramen?
“style my face”
Facial nerve
Walls of the orbit?
“2-2-3-4 all have sphenoid except the floor”
Roof, lateral wall, floor, medial wall
Medial wall of the orbit?
“SMEL”
Sphenoid body, Maxilla, Ethmoid, Lacrimal
Thinnest/Smallest wall
Orbital cellulitis
Branches of the ophthalmic artery
"CL MS LSE" CRA Lacrimal Muscular SPCA LPCA Supraorbital Ethmoid
Internal Carotid Branches
OPAM Ophthalmic Posterior cerebral Ant cerebral Middle cerebral
10 layers of retina
“IN new generations it is only optometrists examining pts retinas”
What is collagen type 1?
type 2?
Type 4?
“Bowman’s Bones Stroma Sclera”
Type 2= vitreous
Type 4= Descemet’s
AREDS vitamins?
“ACE ZInc”
Angiod Streaks
“ANGI drinks PEPSI”
Pseudoxanthoma elasticum, Ehler’s Danlos, Paget’s Disease, Sickle Cell, Idiopathic
6 conditions that cause break in Bruchs membrane (leading cause of Blindness in US)
"CH- BALA" Choroidal Rupture Histoplasmosis Best's Wet AMD Laquer cracks Angiod Streaks
Vitreous attachments in order of strength?
"VP OMaR" Vitreous base/ Ora serrata, Posterior Lens Optic Disc Macula Retinal Vessels
Abnormal findings in NFL?
NFL “CSF” superficial vasculature
Cotton wool spots
Splinter hemes
Flame hemes
Abnormal findings in INL?
Dot blot hemes Deep vasculature
CN’s and what part of brain they attach
Rule of 4’s (CONTRA SO, CONRA SR)
3,4 Midbrain
5,6,7,8 Pons
9,10,11,12 Medulla
How does uvula, tongue, and SO palsy relate to lesion?
Uvula away (Uvula to left lesion on right), SO palsy tilts head away (Right SO palsy, left head tilt), Tongue Toward (tongue left, lesion on left)
Branches of V1?
NFL
Nasociliary
Frontal
Lacrimal
Name the order of the meninges… Where is the subarachnoid space?
"PAD" Pia (subarachnoid) Arachnoid Dura
Orientation of fibers at the optic disc… Temporal vs Nasal
Superior vs Inferior
“SMIL”
Temporal fibers- don’t cross
Nasal- Cross
Thickness of the optic rim tissue.
“ISNT”
Summary of Inferior retinal fibers…
Lower fibers, Lateral, Loop (meyer’s), Lingual Gyrus
Temporal lobe lesions cause superior visual field defects…
“PITS”
Parietal lobe= Inferior visual field defects (“pie on the floor”)
Temporal lobe= Superior visual field defects
“Pie in the sky”
