Health Science 1110 Module 9 Sensations LAB 9 View the Film on Cornea Transplant and answer the questions on your laboratory worksheet. Webpage Activities o Open Internet Explorer o Go to the Health Sciences Website* o Click on the Seeing, Hearing, and Smelling the World web site under lab 9 o Click on Breaking the Code of Color o Click on How Do We See Colors on the left side of the screen. o Read and study the text and click on all the highlighted words o Go back to BioMed Core Lab Page o Click on the Explore the Brain and Spinal Cord web site under lab 9 o Click on the Pain and Why it Hurts link; Read and study all text and click on any link you find interesting. o Click on the I Spy... The Eye link; Read and study all text and click on any link you find interesting. o Take the short on-line interactive quiz about the eye and the crossword puzzle about vision. o Click on the Retina link; o Take the short, interactive quiz on the eye and sight * http://chpweb.weber.edu/hthsci/labpages Page 1
o At the bottom of the page Click on Back To: Exploring the Nervous o Click on the Do You Wear Glasses? Find out why? link o Click on Hear Ye, Hear Ye The Ear link o Take the short on-line interactive quiz about the ear o Click on the back to Exploring the Nervous o Click on How the Nose Knows The Nose link o Ready and study all text and click on any link you find interesting. o Take the short on-line interactive quiz about the nose * http://chpweb.weber.edu/hthsci/labpages Page 2
Answer the following questions as you view the video Cornea Transplant. 1. What is the most common tissue transplant? 2. The white part of the eye is called the. 3. T or F: The cornea is clear. 4. The gives the eye its color. 5. T or F: After a corneal transplant, a patient is at risk for glaucoma. 6. Circle the Correct Answer: Normally the lens is anterior/posterior to the iris. 7. The donor cornea is used between days after the donor has passed away. 8. What is used as an anesthetic around the patient s eye? 9. T or F: Dr. Burk cut through the entire cornea. 10. What decreases the chance of a stigmatism after surgery? 11. If someone has scar tissue, what may occur? 12. T or F: The iris is avascular. 13. T or F: Normally the lens is anterior to the pupil. 14. The clear viscous liquid from the back of the iris is called. 15. The implant is called the. 16. The sutures are attached to the plate. 17. T or F: The implant is placed anterior to the iris. * http://chpweb.weber.edu/hthsci/labpages Page 3
18. T or F: The donor corneal tissue is also call a button. 19. An irregularity in the shape of the cornea is called a. 20. T or F: Sutures are placed one every three clock hours. 21. How thick is the cornea? 22. How long does it take for the nerves to grow back into the cornea? 23. The sutures that go around the entire cornea are made out of. 24. T or F: An increase in blood vessels, increases the chance of rejection. 25. The membrane that covers the sclera is called the. Graphics for Exam 9 Fig 17.1 17.4 17.8 17.20 17.29 * http://chpweb.weber.edu/hthsci/labpages Page 4
ANSWERS 1. CORNEA 2. SCLERA 3. TRUE 4. IRIS 5. TRUE 6. POSTERIOR 7. 7-10 8. ZYLOCAINE LIDOCAINE 9. FALSE 10. ROUND TISSUE INTO ROUND HOLE = BETTER FIT 11. BLEEDING 12. FALSE 13. FALSE 14. VITROUS FLUID 15. INTRA OCULAR LENS 16. FOOT 17. FALSE 18. TRUE 19. STIGMATISM 20. FALSE 21. 1/2 CM 22. ONE YEAR 23. NYLON 24. TRUE 25. CONJUNCTIVA * http://chpweb.weber.edu/hthsci/labpages Page 5