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the retina contains the rods and cones which sense the amount of light and different colors respectively.
Depending on what you are talking about it is no cost to you to have it done once a year
Your Retina
It's actually called the lens, which is in the cornea.
mickey mouse year:1995
yttrium was discovered in the year 1794.
''Tay-Sachs'' was named after Warren Tay, an ophthalmologist who discovered the occurring red spot in the retina in 1881, and Bernard Sachs, who described the cellular changes related to this disease in 1887.
In the year 1902. Dr. Still discovered ADHD.
the back portion of the eye
It was discovered in 1866.
it was discovered 1347