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远视眼
晶状体曲度过小或眼球
前后径过短使物像落在
视网膜的后方
矫正
This diagram illustrates hyperopia and its correction.
The top section shows a hyperopic eye (远视眼). Parallel light rays enter the eye and are refracted by the lens, converging at a focal point (red dot) located behind the retina (indicated by a vertical dotted line).
The bottom section shows the correction (矫正). Parallel light rays first pass through an external convex lens (corrective lens), which increases convergence. These pre-converged rays then enter the eye and are refracted by the natural lens, causing the final image to focus precisely on the retina (red dot on the vertical dotted line).
