nyctalopia

简明释义

英[ˌnɪktəˈləʊpɪə]美[ˌnɪktəˈlopɪə]

n. 夜盲；[眼科] 夜盲症

英英释义

单词用法

同义词

反义词

例句

1.I got nyctalopia card, how to treat excuse me, or which have strange door folk prescription to you can tell me for tall person?

我得了夜盲证，请问如何治疗，或者哪为高人有奇门偏方可以告诉我？

2.I got nyctalopia card, how to treat excuse me, or which have strange door folk prescription to you can tell me for tall person?

我得了夜盲证，请问如何治疗，或者哪为高人有奇门偏方可以告诉我？

3.The doctor explained that nyctalopia can be a symptom of vitamin A deficiency.

医生解释说，夜盲症可能是维生素A缺乏的症状。

4.After spending too much time staring at screens, I noticed that my night vision was deteriorating, a condition known as nyctalopia.

在花太多时间盯着屏幕后，我注意到我的夜间视力正在恶化，这种情况被称为夜盲症。

5.Driving at night became increasingly difficult for him due to his nyctalopia.

由于他的夜盲症，晚上开车变得越来越困难。

6.She realized her nyctalopia was getting worse and decided to visit an eye specialist.

她意识到自己的夜盲症越来越严重，决定去看眼科专家。

7.People with nyctalopia often struggle to see well in dim light or darkness.

患有夜盲症的人通常在昏暗的光线或黑暗中很难看清楚。

作文

Nyctalopia, commonly known as night blindness, is a condition that affects an individual's ability to see in low-light conditions or darkness. Those who experience nyctalopia often find it challenging to adapt their vision when transitioning from bright environments to dimly lit spaces. This condition can be particularly troublesome for individuals who enjoy nighttime activities such as driving, walking, or participating in outdoor sports after sunset. Understanding the causes and implications of nyctalopia is essential for those affected and for society as a whole. The human eye contains two types of photoreceptor cells: rods and cones. Rods are responsible for vision in low light, while cones function best in bright light and are essential for color vision. A deficiency in rod function or a decrease in the number of rods can lead to nyctalopia. Various factors can contribute to this condition, including vitamin A deficiency, certain genetic disorders, and eye diseases such as retinitis pigmentosa and cataracts. Vitamin A plays a crucial role in maintaining healthy vision. It is a vital component of rhodopsin, a pigment found in the rods of the retina that is necessary for low-light vision. When individuals do not consume enough vitamin A through their diet, they may develop nyctalopia. Foods rich in vitamin A include carrots, sweet potatoes, spinach, and liver. Therefore, ensuring an adequate intake of these foods can help prevent or alleviate symptoms of night blindness. Genetic factors also play a significant role in the development of nyctalopia. Conditions like retinitis pigmentosa, which is a hereditary disease that causes progressive degeneration of the retina, can lead to night blindness as one of its symptoms. Individuals with this condition may notice difficulty seeing in low light long before they experience issues in well-lit environments. Genetic counseling and testing can provide insight into the risk of nyctalopia for those with a family history of retinal diseases. Moreover, cataracts, which involve the clouding of the eye's lens, can significantly impact vision, especially at night. As cataracts progress, they can scatter light entering the eye, creating glare and halos around lights, making it difficult for individuals to see clearly in dim lighting. Surgical intervention to remove cataracts can often restore normal vision, alleviating the symptoms of nyctalopia. Awareness of nyctalopia is vital, particularly for those who engage in activities that require good night vision. For instance, drivers must be cautious when navigating in low-light conditions, as impaired vision can increase the risk of accidents. Additionally, individuals with nyctalopia should consider using brighter lights in their homes and avoiding sudden changes in lighting to help their eyes adjust more easily. In conclusion, nyctalopia is a condition that can significantly affect an individual's quality of life, especially in situations requiring good vision in low light. By understanding its causes, such as vitamin A deficiency, genetic disorders, and cataracts, individuals can take proactive steps to manage or mitigate the effects of this condition. Whether through dietary changes, medical interventions, or lifestyle adaptations, awareness and education about nyctalopia can empower those affected to navigate their world more safely and effectively.

夜盲症，通常被称为夜间失明，是一种影响个人在低光条件或黑暗中看见事物能力的状况。那些经历nyctalopia的人常常发现自己在从明亮环境转变到昏暗空间时，适应视力的能力受到挑战。这种情况对于那些喜欢在夜间活动的人来说尤其麻烦，例如开车、步行或参加日落后的户外运动。理解nyctalopia的原因和影响对于受影响的个体以及整个社会都是至关重要的。人眼含有两种类型的光感受器细胞：杆细胞和锥细胞。杆细胞负责低光环境下的视觉，而锥细胞则在明亮光线下效果最佳，并且对颜色视觉至关重要。杆细胞功能不足或数量减少可能导致nyctalopia。多种因素可以导致这种情况，包括维生素A缺乏、某些遗传性疾病以及眼病如视网膜色素变性和白内障。维生素A在维持健康视力方面发挥着关键作用。它是视网膜杆细胞中一种名为视紫红质的色素的重要成分，这种色素对低光视觉是必需的。当个体通过饮食摄入的维生素A不足时，他们可能会发展出nyctalopia。富含维生素A的食物包括胡萝卜、红薯、菠菜和肝脏。因此，确保摄入足够的这些食物可以帮助预防或缓解夜盲症的症状。遗传因素在nyctalopia的发展中也起着重要作用。像视网膜色素变性这样的疾病是一种遗传性疾病，会导致视网膜逐渐退化，其症状之一就是夜盲。患有这种疾病的个体可能会注意到在低光条件下看东西困难，远在他们经历明亮环境中的问题之前。遗传咨询和检测可以为那些有视网膜疾病家族史的人提供关于nyctalopia风险的见解。此外，白内障涉及眼睛晶状体的混浊，可能会显著影响视觉，尤其是在夜间。随着白内障的进展，它们可能会散射进入眼睛的光线，造成眩光和光环，使个体在昏暗的环境中难以清晰地看见。手术去除白内障通常可以恢复正常视力，减轻nyctalopia的症状。提高对nyctalopia的认识至关重要，特别是对于那些参与需要良好夜间视力的活动的人。例如，驾驶者在低光条件下导航时必须小心，因为视力受损可能增加事故的风险。此外，患有nyctalopia的人应考虑在家中使用更亮的灯光，并避免突然变化的光线，以帮助他们的眼睛更容易适应。总之，nyctalopia是一种可能显著影响个体生活质量的状况，尤其是在需要良好低光视觉的情况下。通过了解其原因，例如维生素A缺乏、遗传疾病和白内障，个体可以采取积极措施来管理或减轻这种状况的影响。无论是通过饮食改变、医疗干预还是生活方式调整，提高对nyctalopia的认识和教育可以使受影响的人能够更安全、更有效地应对他们的世界。