Artwork of eye in section demonstrating vision

Artwork of eye in section demonstrating vision

Longsightedness. Artwork of a section through the human eye demonstrating longsightedness. In longsightedness or hyperopia close objects are seen blurred. In normal vision, light rays from the flower at right would be projected onto the light-sensitive retina (thin, yellow) at the back of the eye. Here the image has only come into focus beyond the retina. This means that the image on the retina will be out of focus (blurred). The image is inverted but is interpreted the right way up by the brain. Longsightedness is caused by a lack of symmetry in the eyeball shape or a fault in focusing by the lens (oval, centre)

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© HANS-ULRICH OSTERWALDER/SCIENCE PHOTO LIBRARY

Media ID 6448845

Cornea Eye Sight Focusing Retina Sight Vision Visual Sense

EDITORS COMMENTS
This artwork beautifully illustrates the concept of longsightedness or hyperopia. The intricate section through the human eye reveals the inner workings of our visual sense, shedding light on this common vision condition. In longsightedness, objects that are close appear blurred to those affected. In a normal vision scenario, light rays from a nearby flower would be projected onto the retina at the back of the eye. However, in cases of longsightedness, this image only comes into focus beyond the retina itself. As a result, when it reaches the retina, it is already out of focus and therefore appears blurry. The brain plays an incredible role in interpreting this inverted image correctly by flipping it upright for us to perceive accurately. Longsightedness can occur due to either a lack of symmetry in the shape of our eyeballs or faults in focusing caused by an oval-shaped lens located at its center. This thought-provoking artwork not only showcases our complex anatomy but also serves as a reminder that our visual health is crucial for experiencing life's beauty with clarity and precision.

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