retinas

简明释义

英[ˈrɛtɪnəz]美[ˈrɛtɪnəz]

n. [解剖] 视网膜

英英释义

单词用法

同义词

反义词

例句

1.However, he warned anyone thinking of photographing bubbles to take care if using an optical viewfinder, as the reflected sun could potentially damage the retinas.

但是他提醒那些想拍摄肥皂泡的爱好者，如果使用光学反光镜，太阳光的反射可能会损害视网膜。

2.Because DHA makes up a large portion of the brain and the retinas of the eyes, a deficiency could negatively impact the development or function of these organs.

DHA构成了大脑和眼睛视网膜的绝大部分，缺乏DHA会对这些器官的功能和发育产生不利影响。

3.However, he warned anyone thinking of photographing bubbles to take care if using an optical viewfinder, as the reflected sun could potentially damage the retinas.

但是他提醒那些想拍摄肥皂泡的爱好者，如果使用光学反光镜，太阳光的反射可能会损害视网膜。

4.When the test subjects blinked, the amount of light hitting their retinas didn't change.

当参与试验的人们眨眼时，落到他们视网膜上的光线量没有发生变化。

5.Since my eyes and black retinas were very big, those uncles and aunts, mothers and fathers of mine loved me very much.

因为我的眼睛很大，黑眼仁又多，特别招我的那些叔叔阿姨、干妈干爸们的喜爱。

6.Our retinas have specialized cells called rods, which are used for night vision, and cones, which deal with color.

视网膜中有视杆细胞，负责夜视，以及视锥细胞，负责颜色。

7.Color is our perception of the various frequencies of light that reach the retinas of our eyes.

颜色是光抵达我们眼睛视网膜的，各种频率的，我们的感知能力。

8.In practice, the dye is injected and then a series of photographs of the retinas are taken.

在实践中，染料注入，然后一系列的照片，视网膜采取。

9.The retinas play a crucial role in how we perceive colors.

视网膜在我们感知颜色方面起着至关重要的作用。

10.Some conditions can lead to damage in the retinas, affecting vision.

某些疾病可能导致视网膜受损，从而影响视力。

11.The doctor examined the patient's retinas for any signs of disease.

医生检查了病人的视网膜是否有疾病的迹象。

12.Laser surgery can sometimes help repair damaged retinas.

激光手术有时可以帮助修复受损的视网膜。

13.Bright lights can cause discomfort to the retinas during an eye exam.

在眼科检查中，强光可能会让视网膜感到不适。

作文

The human eye is an incredible organ, allowing us to perceive the world around us with remarkable clarity and detail. At the heart of this complex system lies the retinas, which play a crucial role in our ability to see. The retinas are thin layers of tissue located at the back of the eye, containing millions of light-sensitive cells known as photoreceptors. These cells convert light into electrical signals that are then transmitted to the brain via the optic nerve, enabling us to interpret visual information. Understanding the function of the retinas is essential for appreciating how vision works. There are two main types of photoreceptors in the retinas: rods and cones. Rods are responsible for vision in low light conditions and are highly sensitive to light, while cones are responsible for color vision and function best in bright light. This unique combination allows us to see in various lighting conditions, from the dim glow of twilight to the bright sunlight of midday. However, the health of our retinas is vital for maintaining good vision. Various diseases and conditions can affect the retinas, leading to vision impairment or even blindness. For instance, age-related macular degeneration (AMD) is a common condition that affects the central part of the retinas, resulting in loss of central vision. Diabetic retinopathy, another serious condition, occurs when high blood sugar levels damage the blood vessels in the retinas, leading to potential vision loss. Regular eye examinations are essential for detecting issues related to the retinas early on. Eye care professionals use various tools and techniques, such as retinal imaging and optical coherence tomography (OCT), to assess the health of the retinas and identify any abnormalities. Early detection of problems can lead to more effective treatment options, helping to preserve vision and maintain overall eye health. In addition to medical interventions, lifestyle choices can also impact the health of our retinas. A balanced diet rich in antioxidants, vitamins, and minerals can support retinal health. Foods such as leafy greens, fish high in omega-3 fatty acids, and fruits rich in vitamin C can contribute to the well-being of the retinas. Additionally, protecting our eyes from harmful UV rays by wearing sunglasses and avoiding smoking can help reduce the risk of retinal damage. In conclusion, the retinas are integral to our vision, serving as the interface between light and our perception of the world. Understanding their structure and function is essential for recognizing the importance of eye health. By taking proactive steps to care for our retinas, we can enhance our vision and ensure a clearer view of the world around us. As we continue to learn about the complexities of the eye, it becomes increasingly clear that the retinas are not just passive receivers of light, but active participants in one of our most cherished senses: sight.

人眼是一个令人难以置信的器官，使我们能够以显著的清晰度和细节感知周围的世界。在这个复杂系统的核心，位于眼睛后部的视网膜扮演着至关重要的角色。视网膜是薄层组织，包含数百万个称为光感受器的光敏细胞。这些细胞将光转换为电信号，然后通过视神经传输到大脑，使我们能够解读视觉信息。理解视网膜的功能对于欣赏视觉的工作原理至关重要。视网膜中有两种主要类型的光感受器：杆状细胞和锥状细胞。杆状细胞负责低光条件下的视觉，对光高度敏感，而锥状细胞则负责色彩视觉，在明亮的光线下效果最佳。这种独特的组合使我们能够在各种照明条件下看到，从微弱的黄昏光芒到正午的明亮阳光。然而，视网膜的健康对维持良好的视觉至关重要。各种疾病和状况可能会影响视网膜，导致视力受损甚至失明。例如，年龄相关性黄斑变性（AMD）是一种常见的疾病，影响视网膜的中央部分，导致中央视力丧失。糖尿病视网膜病变是另一种严重的疾病，当高血糖水平损害视网膜中的血管时，会导致潜在的视力丧失。定期眼科检查对于早期发现与视网膜相关的问题至关重要。眼保健专业人员使用各种工具和技术，如视网膜成像和光学相干断层扫描（OCT），来评估视网膜的健康状况并识别任何异常。早期发现问题可以导致更有效的治疗选择，有助于保护视力和维持整体眼睛健康。除了医疗干预，生活方式选择也会影响我们视网膜的健康。富含抗氧化剂、维生素和矿物质的均衡饮食可以支持视网膜健康。富含叶绿素的绿色蔬菜、富含ω-3脂肪酸的鱼类以及富含维生素C的水果都有助于视网膜的健康。此外，通过佩戴太阳镜保护眼睛免受有害紫外线的伤害，以及避免吸烟，可以帮助减少视网膜损伤的风险。总之，视网膜对我们的视觉至关重要，充当光与我们对世界认知之间的接口。理解它们的结构和功能对于认识眼睛健康的重要性至关重要。通过采取积极措施来照顾我们的视网膜，我们可以增强视力，确保更清晰地观察周围的世界。随着我们继续学习眼睛的复杂性，越来越清楚的是，视网膜不仅仅是光的被动接收者，而是在我们最珍贵的感官之一：视觉中扮演着积极的参与者。