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Learn about Photoreceptor Cells

What is a photoreceptor cells?
A photoreceptor is a type of cell located in the retina. (1)
A photoreceptor cell is also known as a photoreceptor. 

Where are photoreceptor cells located? 
in the retina (1)

What do photoreceptor cells do?
A photoreceptor changes light into energy that is transmitted to the brain. (1)

What are types of photoreceptor cells?
rod cells (1)
cone cells (1)

1. https://www.aao.org/eye-health/anatomy/parts-of-eye