what is perception of light?
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Visual perception is the ability to interpret the surrounding environment using light in the visible spectrum reflected by the objects in the environment. This is different from visual acuity, which refers to how clearly a person sees.
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Total blindness is the lack of light perception. Onset can happen at different times. While some people are born blind and never perceive light, others are born sighted and lose their vision to illness or trauma. ... Retinitis pigmentosa can cause total blindness between 20 and 40 years later.
Total blindness is the lack of light perception. Onset can happen at different times. While some people are born blind and never perceive light, others are born sighted and lose their vision to illness or trauma. ... Retinitis pigmentosa can cause total blindness between 20 and 40 years later.
Total blindness is the lack of light perception. Onset can happen at different times. While some people are born blind and never perceive light, others are born sighted and lose their vision to illness or trauma. ... Retinitis pigmentosa can cause total blindness between 20 and 40 years later.
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