Anatomy and Functions of the Eye

The video tutorial provides a comprehensive overview of the anatomy of the eyeball, covering its shape, volume, and axial length. It details the three layers of the eyeball: the outermost layer consisting of the cornea, limbus, and sclera; the middle vascular layer including the iris, ciliary body, and choroid; and the innermost layer, the retina. The tutorial explains the function and flow of aqueous humor, its role in maintaining intraocular pressure, and the structure of the anterior and posterior chambers. The video concludes with a discussion on the retina and vitreous humor.

What is the shape of the eyeball?

• Spherical

• Cylindrical

• Cuboidal

• Triangular

Which part of the outermost layer of the eyeball is transparent and convex?

• Sclera

• Limbus

• Cornea

• Retina

What is the function of the aqueous humor secreted by the ciliary processes?

• To enhance color vision

• To provide nutrients to the retina

• To maintain intraocular pressure

• To protect the lens

Which layer of the eyeball is primarily responsible for blood supply?

• None of the above

• Innermost layer

• Middle layer

• Outermost layer

What is the function of the ciliary body?

• To focus light on the retina

• To secrete aqueous humor

• To control eye movement

• To protect the eyeball

Which part of the eyeball is avascular?

• Sclera

• Cornea

• Pars plana

• Retina

What is the role of the trabecular meshwork?

• To produce aqueous humor

• To drain aqueous humor

• To support the lens

• To nourish the retina

What is the space between the cornea and the iris called?

• Anterior chamber

• Posterior chamber

• Ciliary chamber

• Vitreous chamber

Which part of the eyeball is known as the neurosensory layer?

• Iris

• Retina

• Sclera

• Cornea

What is the main component of the vitreous humor?

• Retinal fluid

• Aqueous humor

• Hyaluronic acid

• Collagen