. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RETINAL CIRCUITRY 339 DOPAMINE Rabbit Cat Cynomolgus monkey lA. FIGURE 5. Schematic diagram of dopaminergic neurons (DA) in the rabbit retina. These cells are a special subgroup of amacrine cells that contact only other amacrine cells, , they are interamacrine neurons. The diagram is based on electron microscopical studies with autoradiograms and labeling with 5,6-dihydroxytryptamine. Ph, photoreceptor; H, horizontal cell; B, bipolar cell; A, amacrine cell; G, ganglion cell. Bader, 1977) and in toads and goldfish there i
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RETINAL CIRCUITRY 339 DOPAMINE Rabbit Cat Cynomolgus monkey lA. FIGURE 5. Schematic diagram of dopaminergic neurons (DA) in the rabbit retina. These cells are a special subgroup of amacrine cells that contact only other amacrine cells, , they are interamacrine neurons. The diagram is based on electron microscopical studies with autoradiograms and labeling with 5,6-dihydroxytryptamine. Ph, photoreceptor; H, horizontal cell; B, bipolar cell; A, amacrine cell; G, ganglion cell. Bader, 1977) and in toads and goldfish there is evidence that a small percentage of the ganglion cells may be cholinergic (Oswald and Freeman, 1980). In clinical ophthalmology, cholinomimetic drugs such as pilocarpine or various cholinesterase inhibitors have long been used as topical eye drops for the treatment of glaucoma. These drugs are likely to reach the retina in significant concentrations, especially in patients which have had their lenses removed because of cataract. However, neither textbooks nor the scientific literature usually suggest that the treatment has any effect on the retina. Nevertheless, all patients on pilocarpine or similar eye drops complain about blurred and obscured vision, at least initially. However, they still usually perform well on ordinary visual testing, so doctors tend not to pay very much attention to these complaints. The standard explanation the doctor gives to the patient is that his or her vision gets obscured because the pupil. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole,
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