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。

DEAFNESS AND HEARING LOSS; BLINDNESS OR VISION LOSS.

失聪和听力下降；失明或视力下降。

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。

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。

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。

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。

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。

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。

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。

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。

Glaucoma - one of the leading causes of vision loss and blindness - is usually treated with eye drops.

青光眼，一种主要的导致视力丧失和失明的疾病，其主要治疗方法是滴眼药水。

The drops may also help prevent vision loss in very young children who need to wait for surgery to be done.

对于那些须要等待一段时间才能进行手术的小婴儿来说，这类眼药水还有助于防止视力丧失。

Similarly, seven dogs (2.3%) were blind or had vision loss, but six of the seven were 13 years old or older.

类似地，7只(2.3%)宠物狗失明或视力下降，但是，其中6只狗的年龄为13岁或更老。

People with diabetes also have increased rates of glaucoma and cataracts, both of which can lead to vision loss.

糖尿病人还更容易罹患青光眼和白内障，它们都用日导致视力丧失。

The visual field test may be repeated at regular intervals for your doctor to determine the extent of vision loss.

然后医生规律的进行重复测试来确定视野的范围。

In the eyes, can cause cataract, glaucoma, diabetic retinopathy, and the cause vision loss and even loss of vision.

在眼睛方面，可以造成白内障、青光眼、视网膜病变，而引起视力减退甚至视力丧失。

Smaller cataracts that are not causing significant vision loss and are in only one eye may be treated by patching the good eye.

体积较小且未引起严重视力损害的单侧白内障可以通过遮盖对侧正常的眼睛来进行治疗。

Choline has been shown to protect your memory, while two proteins in eggs — lutein and zeaxanthin — protect against vision loss.

胆碱已被证实能提高记忆力，而鸡蛋里的两种蛋白质——叶黄素和玉米黄质，有助于保护视力。

During operation, operator should always blink or close their eyes for rest to regulate and improve vision, prevent vision loss.

在操作过程中，应经常眨眼睛或闭目休息一会儿，以调节和改善视力，预防视力减退。

A study also suggests that carotenoids found in green leafy vegetables (such as broccoli and kale) may help prevent vision loss.

一项研究报告指出，在绿叶蔬菜(如花椰菜和甘蓝菜)中发现的类胡萝卜素，可能有助于防止视力下降。

The disease is caused by a mutation of the ABCR gene which leads to the degeneration of photoreceptors in the retina and vision loss.

这种疾病是由基因的ABCR从而导致了在视网膜感光细胞退化和视力减退的突变。

Large, dense cataracts present from birth in the middle of the lens that affect only one eye are more likely to cause permanent vision loss.

若白内障较大而致密，且位于一侧眼球的晶体正中，这种情况更容易造成永久性的视力丧失。

Children who have vision problems due to cataracts usually need surgery to prevent lasting vision loss and to ensure normal vision development.

存在由白内障所致视力问题的儿童常常须要手术来防止永久性视力丧失以及确保视力的正常发育。

A small number of children suffer from a condition called amblyopia, a vision problem that can lead to permanent vision loss if left untreated.

少数儿童患有一种视力问题——弱视，如果不及时治疗，可导致永久性视力丧失。

Without protection diabetics often develop retinopathy: Tiny capillaries nourishing the retina of the eye spill blood onto the retina causing vision loss.

在没有保护的情况下糖尿病患者经常并发视网膜疾病——滋养眼睛视网膜的毛细血管出血，引起视力损失。