retina

简明释义

英[ˈretɪnə]美[ˈretɪnə]

n. [解剖] 视网膜

n. （Retina）人名；(意)雷蒂纳

复 数 r e t i n a s 或 r e t i n a e

英英释义

单词用法

同义词

反义词

例句

1.Each cluster includes a pair of eyes with a sophisticated lens, retina, iris and cornea. Scientists aren't sure how they process what they see.

每组包括一对拥有复杂晶状体、视网膜、虹膜和角膜的眼睛。科学家们还不确定它们如何处理它们看到的东西。

2.It is enclosed by the blood-retina barrier, keeping viruses in and the immune system mostly out.

血视网膜屏障包围着眼睛，把载体限制在内的同时，几乎把免疫系统阻隔在外。

3.As early as 1962 a ruby laser welded a detached retina to a patient's eyeball to save their vision.

早在1962年，一台红宝石激光器将病人脱落的视网膜与眼球重新连接，使他恢复了视力。

4.Eye doctors can detect evidence of high blood pressure by looking at the retina.

眼科医生通过查看视网膜可以察觉出高血压的迹象。

5.Cones in each half of the retina are adapted to produce different light-filtering pigments.

每半边视网膜上的锥体能够产生不同的光过滤颜色。

6.As its name suggests, AMD is a disease of the macula, a pea-sized patch in the centre of the retina.

就字面意思来看，AMD是和黄斑有关的疾病，黄斑是视网膜中心豆粒大小的斑块。

7.Bruno had to have eye surgery on a torn retina two years ago.

布鲁诺两年前因为视网膜破裂不得不进行了一次眼部手术。

8.Laser surgery can help repair a damaged retina.

激光手术可以帮助修复受损的视网膜。

9.A healthy retina is crucial for clear vision.

健康的视网膜对于清晰的视力至关重要。

10.The retina's role is to convert light into neural signals.

视网膜的作用是将光转换为神经信号。

11.He suffered from a detached retina after the accident.

他在事故后遭受了视网膜脱落。

12.The doctor examined the patient's retina for any signs of damage.

医生检查了病人的视网膜以寻找任何损伤的迹象。

作文

The human eye is a remarkable organ that allows us to perceive the world around us in vivid detail. One of its most crucial components is the retina, which plays an essential role in our ability to see. The retina is a thin layer of tissue located at the back of the eye, and it contains millions of light-sensitive cells known as photoreceptors. These cells convert light into electrical signals that are sent to the brain, enabling us to interpret visual information. When light enters the eye, it passes through the cornea and lens before reaching the retina. The lens focuses the light onto the retina, where the photoreceptors, called rods and cones, are located. Rods are responsible for vision in low light conditions, while cones are responsible for color vision and detail in brighter light. This intricate process allows us to see not only shapes and movements but also a wide spectrum of colors.Damage to the retina can lead to serious vision problems. Conditions such as retinal detachment, diabetic retinopathy, and age-related macular degeneration can significantly affect our eyesight. Retinal detachment occurs when the retina pulls away from its normal position, leading to potential blindness if not treated promptly. Diabetic retinopathy is a complication of diabetes that affects the blood vessels in the retina, causing them to leak fluid or bleed, which can distort vision. Age-related macular degeneration affects the central part of the retina, leading to loss of sharp central vision, which is vital for tasks such as reading and driving.Preventing damage to the retina is essential for maintaining good eye health. Regular eye examinations can help detect problems early, and managing underlying health conditions, such as diabetes and hypertension, is crucial. Additionally, protecting our eyes from excessive sunlight by wearing UV-blocking sunglasses can help preserve the health of the retina. A balanced diet rich in antioxidants, vitamins C and E, and omega-3 fatty acids can also contribute to eye health and may reduce the risk of developing retinal diseases.In conclusion, the retina is a vital part of our visual system, translating light into the images we see every day. Understanding its function and the importance of protecting it can help us maintain our vision as we age. As technology advances, researchers continue to explore new treatments and therapies for retinal diseases, offering hope for those affected by vision loss. It is essential to appreciate the complexity of the retina and take proactive steps to safeguard our eyesight for the future.

人眼是一个非凡的器官，让我们能够生动地感知周围的世界。它最重要的组成部分之一是视网膜，它在我们看见的能力中发挥着至关重要的作用。视网膜是位于眼睛后部的一层薄组织，包含数百万个光敏细胞，称为光感受器。这些细胞将光转化为电信号，并发送到大脑，使我们能够解释视觉信息。当光线进入眼睛时，它会穿过角膜和晶状体，然后到达视网膜。晶状体将光聚焦到视网膜上，光感受器（称为杆状细胞和锥状细胞）就位于这里。杆状细胞负责低光条件下的视觉，而锥状细胞则负责在较亮的光线下的色彩视觉和细节。这一复杂的过程使我们不仅能够看到形状和运动，还能看到广泛的色彩谱。对视网膜的损伤可能导致严重的视力问题。视网膜脱落、糖尿病性视网膜病变和年龄相关性黄斑变性等疾病可能会显著影响我们的视力。视网膜脱落发生在视网膜从其正常位置脱离时，如果不及时治疗，可能导致失明。糖尿病性视网膜病变是糖尿病的并发症，影响视网膜中的血管，导致它们渗漏液体或出血，从而扭曲视力。年龄相关性黄斑变性影响视网膜的中央部分，导致锐利的中央视力丧失，而这对于阅读和驾驶等任务至关重要。预防对视网膜的损伤对于维持良好的眼睛健康至关重要。定期眼科检查可以帮助及早发现问题，管理基础健康状况（如糖尿病和高血压）也很重要。此外，通过佩戴阻挡紫外线的太阳镜来保护眼睛免受过多阳光照射，可以帮助保持视网膜的健康。富含抗氧化剂、维生素C和E以及Omega-3脂肪酸的均衡饮食也有助于眼睛健康，并可能减少患上视网膜疾病的风险。总之，视网膜是我们视觉系统的重要部分，将光转化为我们每天所看到的图像。理解其功能和保护其重要性，可以帮助我们在衰老过程中维护视力。随着科技的进步，研究人员继续探索针对视网膜疾病的新治疗和疗法，为那些受到视力损失影响的人们带来希望。欣赏视网膜的复杂性，并采取积极措施保护我们的视力，对未来至关重要。