anat additional Flashcards
horner’s syndrome
lack of sympathetic innervation
mild ptosis
reverse ptosis of lower lid
CN 3 palsy
significant upper eyelid ptosis
eye is down and out
Thyroid eye disease
retraction of muscle of Muller
“stare appearance”
Meibomian glands
large SEBACEOUS GLANDS located posterior to lash follicles within tarsal plate
Nerves of eyelids
Voluntary motor: zygomatic of CN 7 - orbicularis oculi
Involuntary motor: SNS - Muller muscle
Sensory: upper and lower lids by branches of CN 5
What are 2 locations of FENESTRATED capillaries
MACI
Choroid
What is pars plicata
aka Corona Ciliaris (think “crown shaped”
where the NPCE is
where the aqueous humor is produced thru B2 receptors
Where are zonules primarily formed?
Pars plana
What are the 4 layers of the iris
Anterior border layer (iris color = melanin)
Stroma (BV located)
Blood aqueous barrier (Minor circle of iris
Anterior epithelium (dilator is located here–in ciliary zone and pupillary zone)
Blood vessels are located in which layer of the iris
Iris stroma
What do RPE pumps do?
- phagocytize the outer segments of the PR and sends to the choroid
- pump waste out
- pump nutrients from the choroid -> sensory retina
is bruch’s membrane hydrophobic or hydrophilic
Hydrophilic = loves nutrients
“Blue for hydrophilic” , break bruch’s = BAD = Blind
important 2 layers of the bruch’s membrane
Elastic layer = structure for bruch’s membrane
intercollagenous layer
Where is drusen accumulated
in the intercollagenous layer of the bruch’s membrane
Drusen causes bruch’s membrane to be hydrophilic or hydrophobic
Hydrophobic = Bruch’s membrane won’t allow nutrients to cross