Boundaries/Attachments of the Vitreous Flashcards
The vitreous humor makes up ___% of the globe
It fills the posterior / of the globe
and it is the largest single structure in the eye
80%
4/5
Petallar fossa
Anterior depression of the vitreous that the lens sits in
The lens sits in an anterior depression of the vitreous called
The patellar fossa
Peripherally and posteriorly, the vitreous body is bounded by ___, ___ and __
Pars plana, retina, and optic disc
Pars plana
Flat portion of the ciliary body that is bound to the vitreous body
Ora serata
Connects pars plana of the ciliary body (flattest portion) to the neural retina (contains all layers except the RPE)
Neural retina contains all layers except the
RPE
What does annular mean
A 360 degree ring
List all the attachments the vitreous has from strongest to weakest
Strongest
- Attachment at the Ora Serata, known as the vitreous base
- Attachment to the posterior lens
- Attachment to the optic disc
- Attachment to the macula
- Attachment to retinal vessels
Weakest
When the vitreous attaches to the Ora serata, it is known as
The vitreous base
ILM of the retina becomes the ___ of the non-pigmented epithelium of the ciliary body
The basement membrane
The vitreous base has collagen fibers that are firmly embedded where
In the ILM (superficial retina) of the neural retina and of the non-pigmented epithelial basement membrane of the ciliary body (bc the two merge at ora serata)
How does the vitreous attach to the posterior lens?
Collagen fibers from the vitreous form an annular attachment called the hyaloid capsular ligament of Wiger or retrolental ligament.
Within the connection of the annular ring at the posterior lens, there is a potential space called
Berger’s space
Bergers space
Potential space between the vitreous and the annular attachement to the posterior lens which is called the hyaloid capsular ligament of Wiger or the retrolental ligament.
