https://www.khanacademy.org/science/telangana-class-10-physical-sciencein/x1ac9c643dc8dffee:in-in-the-human-eye-and-colourful-world/x1ac9c643dc8dffee:defects-of-vision-and-correction/v/myopia-hypermetropia-class-12-india-physics-khan-academy 2020-09-09T12:23:24Z Myopia & Hypermetropia Let's explore the common defects in the eye, myopia (shortsightedness) and hypermetropia (farsightedness), using ray diagrams. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/U8y0DUElQc-l06Da__vArDvNFsXvTFEHHn4j6q3HaJrMDxhkx6Fki1DFWtQr2aNCXgQ5uu1_mEZJyYig1XCw-UE Myopia & Hypermetropia Let's explore the common defects in the eye, myopia (shortsightedness) and hypermetropia (farsightedness), using ray diagrams. https://cdn.kastatic.org/ka-youtube-converted/dnlS940wez8.mp4/dnlS940wez8.mp4 575 Defects of vision and correction https://www.khanacademy.org/science/telangana-class-10-physical-sciencein/x1ac9c643dc8dffee:in-in-the-human-eye-and-colourful-world/x1ac9c643dc8dffee:defects-of-vision-and-correction/v/presbyopia 2020-10-01T13:55:55Z Presbyopia Let's explore what are the symptoms and causes of Presbyopia. We will also see how bifocals correct them.  Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/2aAPjT9KFKag2TlI0S0rq5sabgqPIUrujYXGOYCWzwx_CcYEKUoz7XApnYmCKWC2k-4ZQMmD_SXsys_JpPvPrR8F Presbyopia Let's explore what are the symptoms and causes of Presbyopia. We will also see how bifocals correct them.  https://cdn.kastatic.org/ka-youtube-converted/TmejI54N97E.mp4/TmejI54N97E.mp4 363 Defects of vision and correction https://www.khanacademy.org/science/telangana-class-10-physical-sciencein/x1ac9c643dc8dffee:in-in-the-human-eye-and-colourful-world/x1ac9c643dc8dffee:defects-of-vision-and-correction/e/defects-of-vision 2026-04-07T23:17:37.123726494Z Defects of vision - characteristics and symptoms Let's understand the nature of the common defects of human vision - myopia, hypermetropia, and presbyopia. Satrajit exercise https://www.khanacademy.org/science/telangana-class-10-physical-sciencein/x1ac9c643dc8dffee:in-in-the-human-eye-and-colourful-world/x1ac9c643dc8dffee:defects-of-vision-and-correction/e/defects-of-vision---causes-and-corrections 2021-04-29T07:55:47Z Defects of vision - causes and corrections Let's practice problems to understand the causes of the common defects of human vision (myopia, hypermetropia, and presbyopia) and how to correct them with external lenses. Satrajit exercise