Interior of the Eyeball

Aqueous Humor:

Both anterior and posterior chambers contain a clear aqueous humor fluid secreted into the posterior chamber by the ciliary epithelium. It passes infront of the lens, through the pupil into the anterior chamber and returns to the venous circulation through the canal of Schlemm situated in the angle of anterior chamber.

Lens:

Lens is a transparent, circular, biconvex structure lying immediately behind the pupil. It is suspended from the ciliary body by the suspensory ligament or zonule of Zinn. It is enclosed within a transparent capsule.

Vitreous:

Vitreous is a transparent, colorless, inert gel which fills the posterior 4/5 of the eyeball. It contains few hyalocytes & wandering leucocytes. It contains of 99% water, some salts and mucoproteins.