Seeing The Vessels Of The Retina :: essays research papers

Seeing the Vessels of the Retina                                                  Have you ever seen a doctor look into a patients look with an instrumentcalled an "ophthalmoscope"? The instrument lights up the inside of the plaza andmagnifies the vessels of the retina in the rear of the eye.     This gives the doctor an idea about how healthy you are as he looks atall the vessels in the back of your eye.HYPOTHESIS     I wanted to know if a person could see the blood vessels in the back oftheir own eye without using the instrument that the doctor uses in the eye exam.     I am really interested in eyes because I have an uncle who got in a caraccident and now he is blind. I hope someday doctors tidy sum help all those whoare blind to be able to see.     I guessed that a person could not see the blood vessels in the back oftheir own eyes.EXPERIMENT     My experiment was not about the tiny blood vessels that you can easilysee on the surface of the eye. Its to do with the larger vessels     All I had to do was take a person into a dark room with my flashlight.I had them cover their left eye and look down at the floor with their ripe(p) eye.I held the flashlight up towards the ceiling under their right eye, but theykept looking at the floor, not the light.RESULTS     I am writing down what everyone recorded for me. I am firstJOSH I could see black blood vessels with orange in the background...it lookedlike a lot of dead tree.BRENDA The blood vessels resembled jagged lighting bolts or trees in the overwintertime.LAURA I saw crooked lines that didnt stand still, but kept changing.DARWIN The image appeared to be in front of the body and quite enlarged. Ifound that it takes bore to see this.BRYAN Sometimes your eye gets tired before you can successfully do this, so youmay have to use the other eye or take a rest and try it again.