Science
Vision defects
दृष्टि दोष
In Class 10 Science, this topic explains how common vision defects affect the eye’s ability to form a sharp image. Students learn about myopia (short-sightedness), hypermetropia (long-sightedness), and presbyopia, including their causes and correction with suitable concave, convex, or bifocal lenses. The topic also connects these defects with accommodation, the near point, and the far point of the human eye in the context of The Human Eye and the Colourful World.