Essays Tagged: "Optic nerve"

What is Glaucoma?

Glaucoma is caused by the pressure inside the eye being elevated causing lack of blood flow to the optic nerve, thereby causing the vision loss. There are two main types of glaucoma. There is chronic ... then lost. When this happens, the nerve fiber layer gets thinner. This causes an empty space in the optic nerve, which is the "cup" of the optic nerve, to become larger until the nerve is completely g ...

(5 pages) 34 0 3.4 Feb/2003

Subjects: Humanities Essays > Health & Medicine > Diseases

How the eye works.

the lens onto the retina, where rodsa and cones detect the pattern of the light and send it via the optical nerve to the brain where it is decoded into what we see. When an image reaches the brain it ...

(2 pages) 35 0 0.0 Jun/2003

Subjects: Science Essays > Biology > Human Biology

Pro-legalization of Medical Marijuana.

escalated in the United States.Marijuana is effective in relieving nausea in AIDS patients, lowers optic nerve pressure in glaucoma patients, and is in general an intellectual stimulant. The old argu ...

(3 pages) 101 1 4.6 Nov/2003

Subjects: Social Science Essays > Controversial Issues > Drugs & Alchohol

Color Blindness

Color blindness may be a hereditary condition or caused by disease of the optic nerve or retina. Acquired color vision problems only affect the eye with the disease and may b ...

(2 pages) 57 0 2.0 Feb/2004

Subjects: Science Essays > Biology > Human Biology

Sports Psychology

where reflexes and actions are coordinated. It consists of the brain and spinal cord only. Neurons (nerve cells) transmit electrical impulses very quickly around the body. The effectors are muscles an ... bout people watching them perform.I think that if the quieter participants wish to improve on there nerves they need to get more experience in being in front of audiences. They can start of with small ...

(21 pages) 206 1 3.9 Apr/2004

Subjects: Social Science Essays > Psychology

Blindness.

These cells react to the presence and intensity of light and send impulses to the brain through the optic nerve. These impulses are converted into sight by the brain.There are many things, which cause ... hat regulate the eye's internal pressure. The increased pressure, from this condition, destroys the optic nerve. It can cause blindness and also tunnel vision. If you close one eye and look through a ...

(12 pages) 82 0 5.0 Nov/2005

Subjects: Science Essays > Biology > Human Biology

What Process light goes through as it enters the eye travels to the brain?

t blurred. Next these bipolar cells hook up to ganglion cells which join by their axons to form the optic nerve. Then the neural message travels through the optic nerve to the optic chiasm, the point ... the optic nerve to the optic chiasm, the point near the base of the brain where some fibers in the optic nerve form each eye cross to the other side of the brain. When all the right and left fibers a ...

(2 pages) 13 0 4.0 Dec/2005

Subjects: Science Essays > Biology > Human Biology

A Comparison Between a Human's and Cow's Eye

same purpose.The Exterior of the EyeA table comparing the exterior of the eyeball in cows and humansOptic NerveIt looks exactly like in the text book, except that I think that the white 'wall' or 'mem ...

(4 pages) 18 1 1.0 Dec/2006

Subjects: Science Essays > Biology

ICP Industry

terpret messages from these cells. The ganglion cells then send these messages to the brain via the optic nerve. However, when the rods and cones become inoperative, visual capability is lost. Current ...

(2 pages) 469 0 0.0 Feb/2008

Subjects: Science Essays > Biology > Human Biology

Artificial Retina

terpret messages from these cells. The ganglion cells then send these messages to the brain via the optic nerve. However, when the rods and cones become inoperative, visual capability is lost. Current ...

(2 pages) 1250 0 0.0 Feb/2008

Subjects: Science Essays > Biology > Human Biology

Human Sight

ightedness, astigmatism, LASIK surgery and corrective lenses will be discussed. Also, discussion of optical equipment used to examine, care for and the corrective treatment of eyes will be included. T ... movie screen" of the eye. Images formed on the retina should cause nerves to send signals along the optic nerve to be "seen" by the mind.2The next step is how the brain interprets human sight. Think o ...

(7 pages) 9 0 0.0 Sep/2009

Subjects: Science Essays > Biology > Human Biology