Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 36, Problem 37CTQ
Cataracts, the medical condition where the lens of the eye becomes cloudy, are a leading cause of blindness. Describe how developing a cataract would change the path of light through the eye.
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Cataracts, the medical condition where the lens of the eye becomes cloudy, are a leading cause of blindness. How would this change the path of light through the eye?
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Chapter 36 Solutions
Biology 2e
Ch. 36 - Figure 36.5 Which of the following statements...Ch. 36 - Figure 36.14 Cochlear implants can restore hearing...Ch. 36 - Figure 36.18 Which of the following statements...Ch. 36 - Where does perception occur? spinal cord cerebral...Ch. 36 - If a person’s cold receptors no longer convert...Ch. 36 - After somatosensory transduction, the sensory...Ch. 36 - Many people experience motion sickness while...Ch. 36 - ________ are found only in skin, and detect skin...Ch. 36 - If you were to burn your epidermis, what receptor...Ch. 36 - Many diabetic patients are warned by their doctors...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Explain the process of phototransduction and signal transmission in the retina. Be sure to include the steps associated with the formation/breakdown of Rhodopsin as well as the signal transduction process that takes place in the retina beginning in the dark. Be sure to also include where in the retina these processes are taking place (i.e rods, bipolar cells or ganglion cells, outer segment, inner segment…). It is a very important question If possible, provide all the correct and detailed information, please.arrow_forwardExplain the term atropine? How it dilates the pupil of rabit eye.arrow_forwardName the condition in which light rays are formed behind the retina.arrow_forward
- During a routine eye exam, Lilibeth, a 45-year-old woman mentions to her optometrist that her glasses no longer allow her to see small prints, although they help her to see signs and distant objects while driving. She expresses further that she has been experiencing this problem for about a year, but it has gotten worse in the past few months. The optometrist recommended bifocal and also test Maybelle's eyes with a device that blows a puff of air on the cornea to measure the intraocular pressure. The results of this test are normal. What can you conclude about Maybelle's vision?arrow_forwardAs has been done since the beginning of time, removing the lens of the eye for the purpose of cataract surgery, why would you anticipate a spectacle lens of about 16 D to be prescribed?arrow_forwardPut the following parts of the eye in the order in which light would pass through them: anterior chamber w/ aqueous humor, cornea, iris w/pupil, lens, posterior chamber w/aqueous humor, retina, vitreous chamber w/ vitreous body, optic nerve THIS IS NOT AND WILL NOT BE GRADEDarrow_forward
- A 73-year old male patient complains of progressive darkening and clouding across his entire left field of vision. The patient reports no pain or trauma, and the progression has taken place very gradually. He is diagnosed with a cataract in the left eye. Why is it extremely important that all personnel in this procedure wear powder-free gloves?arrow_forwardE A H C J D 'K Match the labelled eye structure with the correct eye condition or eye function. Contains the photoreceptors (rods and cones) Glaucoma results if this fluid is not drained properly Sensory neurons to the brain : Captures stray light and contains nourishing blood vessels Contains a high concentration of cones Cataracts can develop in this structure Refracts (bends) light rays into the eye The blind spot: no photoreceptors are located here Protects and supports the eyeball Supports the eyeball with the gel-like fluid The opening for light to enter the inner eyearrow_forwardExplain why the condition represented in Figure causes loss of vision in the center of the field of vision and blurriness in the periphery.arrow_forward
- Give a brief account of Mechanism of vision.arrow_forwardDescribe the vascular layer of the eye (easy and simple)arrow_forwardMatch the function with the correct structure. 1. Absorbs scattered light Sclera 2. Photoreceptors of the retina responsible for Vitreous humour colour vision 3. Refracts light rays into the eye Ciliary muscles 4. Supports the eyeball with the fluid they Iris contain 5. Alters the shape of the lens to promote Cones focusing Lens 6. Protects and supports the eyeball 7. Area that contains a high density of cones Choroid 8. Photoreceptors of the retina sensitive to dim Fovea centralis light 9. Focuses the light rays on the fovea centralis Rods 10. Regulates the amount of light that enters Cornea the eyearrow_forward
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