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相关概念视频

Focusing of Light in the Eye01:16

Focusing of Light in the Eye

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Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
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Influence of Earth's Curvature and Atmospheric Refraction on Leveling01:26

Influence of Earth's Curvature and Atmospheric Refraction on Leveling

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During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance. Over a...
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相关实验视频

Updated: Jan 10, 2026

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
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折射误差和偏差的角度在基本的异质与异质:一个比较研究.

Babak Masoomian1, Mohammad Reza Akbari1, Arash Mirmohammadsadeghi1

  • 1Translational Ophthalmology Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran 1336616351, Iran.

International journal of ophthalmology
|November 24, 2025
PubMed
概括

患有基本异构症的患者比患有基本异构症的患者有更多的高视度折射误差和较大的水平眼偏差. 基本热带症患者也在较年轻时接受眼手术.

关键词:
偏差的角度偏差的角度基本的等离子体.基本的外型特异性.折射误差是因为折射误差.

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相关实验视频

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科学领域:

  • 眼科医生 眼科 眼科
  • 斯特拉比斯莫学是什么意思
  • 儿科眼科医生 儿科眼科医生

背景情况:

  • ,影响双眼视力的常见疾病,包括各种亚型,包括基本的等和基本的异.
  • 了解这些亚型之间的折射误差和眼睛对齐的差异对于有效的管理至关重要.

研究的目的:

  • 为了比较被诊断为基本异质与基本异质的患者的折射误差和偏差角度.

主要方法:

  • 进行了对基本型偏患者病历的回顾性审查.
  • 收集的数据包括人口统计,折射误差,最佳校正距离视敏度 (BCVA) 和水平/垂直偏差角度.

主要成果:

  • 与基本异质变异症患者相比,基本异质变异症患者表现出更多的高视度折射误差 (平均球体等效差异).
  • 在基本的异构中观察到显著更大的水平偏差角度,而基本的异构则显示出稍大一些的垂直偏差角度.
  • 患有基本异性质的患者比患有基本异性质的患者在更年轻的平均年龄接受了眼手术.

结论:

  • 相比于基本的外热症,基本的内热症与更多的高视度折射误差,更大的水平失调以及较早的手术干预有关.
  • 这些发现突出了基本异质和基本异质之间明显的临床特征,为诊断和治疗策略提供了信息.