Abstract
We used pharmacological experiments for medical students to study and understand the pharmacology of the autonomic nervous system. The drugs used were eye drops, and internal medicine. Intra-ocular pressure (TOP), accommodation etc. were measured. Eye drops were used in one eye, and the contralateral eye was left untreated. The TOP decreased in both eyes when epinephrine, dipivalyl epinephrine and timolol were used on one eye. We assumed that these drugs effected not only the eye treated topically, but also the autonomic nervous system. Accommodation was measured using an accommodo-poli-recorder and accommodometer AA2000. Mydriactic eye was measured using the pin-hole method. Accommodation using pilocarpine was almost unchanged. The difference in accommodation using tropicamide was 3 diopters (D) between accommodo-poli-recorder and accommodometer AA2000 measurements. We considered that this 3D difference was caused by the difference between subjective and objective refraction. Results of measurements using the pin-hole method increased 1D comparison over the method without using the pin-hole.
