Final answer:
Glaucoma is caused by the blockage of the Canal of Schlemm, leading to increased intraocular pressure and potential vision loss.
Step-by-step explanation:
Glaucoma results from the blockage of the Canal of Schlemm. This canal is crucial in maintaining proper intraocular pressure by allowing the drainage of aqueous humor from the eye. When the canal is blocked, the fluid cannot drain, leading to increased pressure within the eye, which can damage the optic nerve and result in vision loss. Other bodily pressures, such as spinal and skull pressures, bladder pressure, or pressures in the skeletal system, are also important but are not directly related to the mechanism of glaucoma.