What is the main component of the vitreous body?

Type 2 collagen fibers and hyaluronic acid

Which layer of the vitreous humor is not a true membrane?

Hyaloid Layer or Membrane

Riddle: I make up 2% of a gel-like mass in your eye, where collagen II and hyaluronate combine. What am I?

Cortical Vitreous

True or False: The medullary vitreous contains hyalocytes.

False. The medullary vitreous does not contain hyalocytes.

Fill in the blank: Cloquet’s Canal runs from the ______ to the posterior lens surface.

Optic disc

What condition is characterized by small specks or threads in vision?

Floaters

Which of the following is a cause of floaters? A) Asteroid hyalosis B) Glaucoma C) Cataract D) Retinal detachment

A) Asteroid hyalosis

Fill in the blank: Vitreous hemorrhage can occur due to bleeding from ______ vessels.

Retinal

True or False: Vitreous hemorrhage is only caused by trauma to the eye.

False. Vitreous hemorrhage can also occur due to spontaneous bleeding, inflammatory diseases, and vascular diseases.

What is a significant risk factor for vitreous hemorrhage?

Diabetic Retinopathy (DR)

Riddle: I cause a sudden loss of vision and may show a black shadow during an eye exam. What am I?

Vitreous hemorrhage

What diagnostic tool is useful for diagnosing vitreous hemorrhage?

B-scan ultrasound

Fill in the blank: Initial treatment for vitreous hemorrhage involves resting in bed with the head ______.

Elevated

Which type of vitrectomy involves accessing through the limbus?

Open sky vitrectomy

True or False: Pars plana vitrectomy is a highly invasive procedure.

False. Pars plana vitrectomy is a less invasive approach.

What condition can lead to tractional retinal detachment?

Retinitis proliferans

What are the tiny white particles in asteroid hyalosis composed of?

Calcium and lipids (fats)

Which type of floaters are associated with inflammatory cells?

Intermediate and posterior uveitis

Fill in the blank: Red cell opacities can appear due to small ______ in the vitreous.

Bleeds

What is the primary metabolic center of the vitreous body?

Cortical Vitreous

Which condition involves crystalline particles made of cholesterol in the vitreous?

Synchysis scintillans

Fill in the blank: Vitreous hemorrhage can be classified into preretinal and ______.

Intragel

Which vascular disease is a potential cause of vitreous hemorrhage?

Central Retinal Vein Occlusion (CRVO)

True or False: Vitreous degeneration occurs as a normal aging process.

True

Riddle: I’m a canal that runs through the vitreous, once held a vessel in the embryo, what am I?

Cloquet's Canal

What type of opacities can occur in patients with retinoblastoma?

Tumour cell opacities

Fill in the blank: The major part of the vitreous is known as ______ vitreous.

Medullary

Which condition involves the presence of ghost cells in the vitreous?

Ghost cell glaucoma

What is the role of hyalocytes in the vitreous body?

They serve as the metabolic center.

True or False: The hyaloid layer is a true membrane.

False. The hyaloid layer is a condensed outer layer but not a true membrane.