Answer:
She wasn't allowed to attend lectures at first, and was only allowed into the school thanks to the math instructor already knowing of her work. She was denied an official degree because she was a woman, even though she completed all requirements, being the first woman to do so. She was granted the degree later in 1926. She contributed a theory on color vision, and how it was an evolutionary product that occurred in 3 stages. She then described why humans have certain colorblindness by studying the eye.
I assume this is the answer to what you're talking about. Change if needed.