DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Dilated pupil. She mistakenly put Mydrilate (cyclopentolate) drops in her eye. Cyclopentolate is a drug that blocks receptors in the muscles of the eye, causing them to relax. As the muscles control pupil size, the drug causes the pupil to dilate. The effects of the drops will wear off after a short time.
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