While cones are concentrated in the fovea, where images tend to be focused, rods, another type of photoreceptor, are located throughout the remainder of the retina. They also are directly involved in our ability to perceive color. Cones are very sensitive to acute detail and provide tremendous spatial resolution. The cones are specialized types of photoreceptors that work best in bright light conditions. These photoreceptor cells, known as cones, are light-detecting cells. The fovea contains densely packed specialized photoreceptor cells ( ). In a normal-sighted individual, the lens will focus images perfectly on a small indentation in the back of the eye known as the fovea, which is part of the retina, the light-sensitive lining of the eye. The lens is attached to muscles that can change its shape to aid in focusing light that is reflected from near or far objects. The anatomy of the eye is illustrated in this diagram.Īfter passing through the pupil, light crosses the lens, a curved, transparent structure that serves to provide additional focus. The Sociocultural Model and Therapy Utilization
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