Foveola
The center of the fovea is the foveola ? about 0.2 mm in diameter ? where only cone photoreceptors are present. The central fovea consists of very compact cones, thinner and more rod-like in appearance than cones elsewhere. Starting at the outskirts of the fovea, however, rods gradually appear, and the absolute density of cone receptors progressively decreases.
Related Links
Foveola — definition of foveola by Medical dictionary
The anatomy of the foveola reinvestigated [PeerJ]
PROPEDEUTICS OF OFTALMOLOGY – University of Helsinki Eye Clinic – The Structure of the Retina
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