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1·It is caused by damage to the blood vessels in the eyes, and results in gradual vision loss and blindness.

它是由眼睛血管受损引起的，会导致视力逐渐丧失和失明。

2·DEAFNESS AND HEARING LOSS; BLINDNESS OR VISION LOSS.

失聪和听力下降；失明或视力下降。

3·Delaying care could lead to permanent vision loss or blindness.

推迟治疗可能会导致永久的视力损伤或者致盲。

4·The vision loss from a cataract often happens slowly and may never become severe.

白内障所引起的视力减退是一个相当缓慢的过程，而且这种视力减退可能并不会十分严重。

5·Retinal diseases can cause severe vision loss or blindness if left untreated.

视网膜疾病，如果任其不治的话，可能引起严重的视力减退或失明。

6·A person's response to prosopagnosia seems as varied as the response to vision loss.

一个人对人面失认症跟对视力丧失一样是各式各样的。

7·Removing the cataract will probably not correct all of the vision loss at this point.

若此时才摘除白内障，可能也无法挽回所损失的全部视力。

8·Once symptoms begin to appear, permanent vision loss may have already occurred.

一旦症状开始出现，永久的视力损害已经发生。

9·Vision problems, vision loss, or pain in your eye if you have diabetic eye disease.

出现糖尿病相关眼病的时候会出现视力下降、失明和疼痛感。

10·Surgery may have complications, such as: infection, bleeding, vision loss, and so on.

手术也可能产生并发症，如：感染、出血、视力减退等。