Question

XIL. Read the passage given below and answer the questions that follow Cataract is the major cause of blindness, which is also caused by a damage to the comca. It occurs more often in old age. As one stans growing old, the lens of the eye hardens, loses it transparency and becomes opaque. It obstructs the light rays he from entering the eye. wa Milk Soup of hann 1120 1140 or 150 The onset of cataract blurs the vision. Sometimes, the cataract patient sees mul- tiple images instead of a single object image. Because of the gradual development of cataract, the afflicted person loses his/her vision and the world becomes dark to him/her. The development of cataract is a complex process. However, the following factors can be attributed to its formation. Cataract generally develops in old age but some- times, children are born with cataract because of hereditary defect. Eye injuries too. can cause cataract. People exposed to sunrays for longer periods develop cataract earlier than others. Researchers opine that the smoke inhaled while smoking, carries substances inter- nally damaging the eyes. Ultraviolet radiation, invisible to the human eye, is linked to skin cancer. The victim loses vision and the world becomes dark to him. Answer the following questions. 5M 44. What is the major cause of blindness? 45. When does cataract generally occur ? 46. Why does the lens of the eye become opaque in old age ? 47. How does one detect cataract in early stages? 48. Give any two factors which are responsible for the formation of cataract. hof d Viro aj Micron Knthrax d] Small humans the c) Lepro dr Rabie weak gert Injecting c) Inice​

Answer 1

Answer:

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Explanation: