Does Eye Color Affect Vision Acuity in a Variety of Light Conditions?

Tailynn Varney, Kristy Henson
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Abstract

Eye color is a physical characteristic that varies from person-to-person. Due to a range of difference in pigmentation of the iris, people with different eye colors tend to see the world differently. For those with lighter eyes, it may be more difficult to see clearly in environments with certain light conditions or intensities. Throughout a person’s life, they encounter several different forms of light ranging from natural sunlight to artificial lighting. In my research, I investigated whether a person’s eye color influences their vision in artificial lighting compared to natural lighting. Preliminary results show that light did influence visual acuity. However, there was no correlation between eye color and light influenced vision changes.   To assess vision, participants were asked to cover each eye and read a Snellen eye chart. This was completed a total of 4 times. Using two separate eye charts, each with a different color background behind the chart, participants were tested at 10 and 20 feet away from the charts. Each test was presented in a room with only artificial light, and outside of the building in natural light.   This information can help individuals ensure that the change in vision, if any, caused by different kinds of light does not negatively influence their everyday life. In extreme situations those with eyes more sensitive to certain types of light could cause harm to themselves or others around them. Having this information about oneself is helpful to all people, not just those with a history of eye issues.        
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在不同的光照条件下,眼睛颜色会影响视力吗?
眼睛的颜色是一种因人而异的身体特征。由于虹膜色素的不同,眼睛颜色不同的人看待世界的方式也不同。对于那些眼睛较浅的人来说,在某些光线条件或强度的环境中可能更难以看清楚。在人的一生中,他们会遇到几种不同形式的光,从自然光到人工照明。在我的研究中,我调查了一个人的眼睛颜色是否会影响他们在人工照明和自然照明下的视力。初步结果表明,光线确实会影响视力。然而,眼睛颜色和光线对视力变化的影响之间没有相关性。为了评估视力,参与者被要求遮住每只眼睛并阅读斯涅伦视力表。共完成4次。使用两个独立的视力表,每个视力表后面都有不同的背景颜色,参与者在距离视力表10英尺和20英尺的地方进行测试。每个测试都是在一个只有人造光的房间里进行的,而在建筑外面有自然光。这些信息可以帮助人们确保由不同种类的光线引起的视力变化不会对他们的日常生活产生负面影响。在极端情况下,那些眼睛对某些类型的光更敏感的人可能会对自己或周围的人造成伤害。了解这些关于自己的信息对所有人都有帮助,而不仅仅是那些有眼睛问题历史的人。
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