astigmatic lens

简明释义

1. 像散透镜; 2. 象散透镜;

英英释义

例句

1.Wearing astigmatic lenses can help reduce headaches caused by eye strain.

佩戴散光镜片可以帮助减少因眼睛疲劳引起的头痛。

2.After testing, I found out I needed astigmatic lenses to see clearly.

经过测试，我发现我需要散光镜片才能看清楚。

3.The new astigmatic lens technology improves comfort and clarity.

新型的散光镜片技术提高了舒适度和清晰度。

4.The optometrist recommended an astigmatic lens for better vision correction.

验光师推荐使用散光镜片以获得更好的视力矫正。

5.Patients with astigmatism often benefit from wearing astigmatic lenses.

患有散光的患者通常会受益于佩戴散光镜片。

作文

In the world of optics, lenses play a crucial role in how we perceive the environment around us. One type of lens that is particularly important for correcting vision issues is the astigmatic lens. An astigmatic lens is designed to correct astigmatism, which is a common refractive error caused by an irregular shape of the cornea or lens of the eye. This condition results in blurred or distorted vision at all distances, making it difficult for individuals to see clearly. Understanding the significance and function of an astigmatic lens can provide insights into both optical science and the everyday lives of those who rely on corrective eyewear.Astigmatism occurs when the cornea is not perfectly spherical, leading to multiple focal points instead of a single point where light converges. This means that light rays entering the eye do not focus evenly on the retina, resulting in blurred vision. A regular lens cannot effectively correct this issue because it is typically designed to focus light in one direction. Hence, an astigmatic lens is engineered with different curvatures in different meridians, allowing it to bend light appropriately and focus it on a single point on the retina.The design of an astigmatic lens is quite complex. It often involves cylindrical surfaces that can correct the specific angles of astigmatism. When a person wears glasses or contact lenses with an astigmatic lens, they experience a remarkable improvement in their vision. The clarity and sharpness that come from using these specially designed lenses can significantly enhance one’s quality of life, enabling better performance in daily activities such as reading, driving, and participating in sports.Moreover, the advancement of technology has led to the development of various types of astigmatic lenses. For example, toric lenses are a popular choice among contact lens wearers with astigmatism. These lenses are crafted to maintain their position on the eye, ensuring that the correct part of the lens aligns with the pupil. This is crucial because even a slight misalignment can lead to discomfort or blurry vision. Additionally, advancements in materials have made it possible to create astigmatic lenses that are both comfortable and effective, catering to the diverse needs of users.In summary, the astigmatic lens plays a vital role in correcting vision for millions of people worldwide. By understanding how these lenses work and their importance in optical health, we can appreciate the intricate science behind vision correction. Whether through glasses or contact lenses, the impact of an astigmatic lens extends beyond mere vision; it enhances the overall quality of life, allowing individuals to engage fully with the world around them. As technology continues to advance, we can anticipate even more effective solutions for those suffering from astigmatism, ensuring that clear vision is accessible to all.

在光学世界中，镜头在我们感知周围环境的方式中扮演着至关重要的角色。特别重要的一种镜头是散光镜头，它用于矫正视力问题。散光镜头旨在纠正散光，这是一种常见的屈光不正，由于眼睛角膜或晶状体形状不规则而导致。这种情况使得在所有距离上都出现模糊或扭曲的视力，使得个体难以清晰地看见。理解散光镜头的重要性和功能可以为我们提供光学科学和依赖矫正眼镜的日常生活的洞察。散光发生在角膜不是完全球形时，导致多个焦点而不是一个聚焦点，光线汇聚在此。这样，进入眼睛的光线无法均匀地聚焦在视网膜上，从而导致视力模糊。普通镜头无法有效纠正这个问题，因为它通常设计成在一个方向上聚焦光线。因此，散光镜头被设计成在不同的经度上具有不同的曲率，使其能够适当地弯曲光线，并将其聚焦在视网膜上的单一焦点上。散光镜头的设计相当复杂。它通常涉及到圆柱形的表面，可以纠正特定角度的散光。当一个人佩戴带有散光镜头的眼镜或隐形眼镜时，他们的视力会显著改善。使用这些专门设计的镜头所带来的清晰度和锐利度可以极大地提升一个人的生活质量，使他们能够更好地进行日常活动，如阅读、驾驶和参加运动。此外，技术的进步使得各种类型的散光镜头得以开发。例如，托里克镜头是散光隐形眼镜佩戴者的热门选择。这些镜头被制作成保持在眼睛上的位置，确保镜头的正确部分与瞳孔对齐。这一点至关重要，因为即使是轻微的错位也可能导致不适或模糊的视力。此外，材料的进步使得制造出既舒适又有效的散光镜头成为可能，满足用户的多样化需求。总之，散光镜头在全世界数百万人的视力矫正中扮演着重要角色。通过了解这些镜头的工作原理及其在光学健康中的重要性，我们可以欣赏到视力矫正背后的复杂科学。无论是通过眼镜还是隐形眼镜，散光镜头的影响超越了简单的视力；它提升了整体生活质量，使个体能够充分参与周围的世界。随着技术的不断进步，我们可以期待为那些患有散光的人提供更有效的解决方案，确保清晰的视力对所有人都能获得。