On Monday, I had some fun applying math to how light affects the pupils! My previous post shows a photo that they took of my pupils under red light. During this session, I printed 90 photos of different subjects' pupils under brighter and darker red light! Then I measured each pupil to see whether the brightness in light affected the dilation.
In each photo they hold a ruler up to the subject's eye in order for comparison once the photo is printed. -So, I took the distance of the pupil (D, what I'm looking for) and divided it by the measurement on the ruler in mm of the pupil. So, for example, if the measurement was 6mm then D/6.
-Then I set the fraction equal to the special 3D measurement (I used a special measuring tool that the lab had created) of the pupil over the special 3D measurement of the ruler. So, for example, D/6 = 59.78/60.92 (usually the 3D measurements are not very far away from each other).
-Then I solved for D, which, in this case, would be ~5.88! So 5.88 is the measurement of the pupil! Here's a photo of my work:
In each photo they hold a ruler up to the subject's eye in order for comparison once the photo is printed. -So, I took the distance of the pupil (D, what I'm looking for) and divided it by the measurement on the ruler in mm of the pupil. So, for example, if the measurement was 6mm then D/6.
-Then I set the fraction equal to the special 3D measurement (I used a special measuring tool that the lab had created) of the pupil over the special 3D measurement of the ruler. So, for example, D/6 = 59.78/60.92 (usually the 3D measurements are not very far away from each other).
-Then I solved for D, which, in this case, would be ~5.88! So 5.88 is the measurement of the pupil! Here's a photo of my work:
Great post, Rose! I love the concept, explanation, mathematical explanation, and ESPECIALLY the picture of your work. You seem to be doing great science in this blog post. Carry on!
ReplyDeletePlease to remember the date of the actual internship day.
ReplyDeleteRose --
ReplyDeleteIt was really nice to get to know about the progress of your work ;) I was very interested in how you were mentioning different eye colors actually impact the way lights are received. I was practically happy when you mentioned that dark eyes (my eyes :)) were less vulnerable to lights. I was also really excited that you are using LED lights for your experiment since my parents' company produces them.
Good comment, Peggie. You should share this with your parents!
DeleteHI Rose,
ReplyDeleteIt was interesting to know that LED lights can effect melatonin levels. All the experiments that you did with the pupils sounds scary but interesting at the same time. XD it also shocked me that you are constantly using yourself as the tester in each experiments. Keep up the good work!! :)
-Yvonne
Good comments, Yvonne.
DeleteROSE!
ReplyDeleteSo I enjoyed learning about your work and how you use the melatonin level to observe the effect that light has on sleep! I was wondering if you also measure other hormone levels other than melatonin because we learned in bio class that a lot of other hormones contribute to sleep as well, and you told me that you unfortunately don't, but it will be an interesting experiment :)
Good comment, Jeeyon. I like the connection with your class.
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