Fertilisation of a human egg1970-01-01T00:00:00+00:00Fertilisation of a human egg. Only one sperm makes it. Once that sperm has penetrated the egg, various changes prevent other sperm from entering. Nuclear material from sperm and egg mingle and the cell divides.PT25S//d3e1m60ptf1oym.cloudfront.net/7046a617-dbcb-44bf-a305-599a92eaf5d5/Fertilization_63_1920_SEPIA_xlarge.jpghttps://www.scientific.pictures/-/galleries/animations/-/medias/7046a617-dbcb-44bf-a305-599a92eaf5d5/pricehttps://www.scientific.pictures/-/galleries/animations/-/medias/7046a617-dbcb-44bf-a305-599a92eaf5d5/price
MYOPIA (short sightedness)
MYOPIA (short sightedness). A normal eye elongates (in the animation - not in reality) and so becomes myopic. A diverging (bi-concave) lens then drops in front of the eye, correcting the myopia. This animation is actually a simulation since the paths of the rays are computed, not drawn.
Myopia is a refractive error. The myopic eye is relatively too long (along its visual axis) for the converging power of its optics. Consequently it cannot focus distant (parallel) rays on the retina. Such rays converge in front of the retina (compare with hypermetropia). Close objects (producing diverging rays) are focused properly (hence short sighted). Myopia is corrected by using spectacles with diverging (concave) lenses.
Myopia is a refractive error. The myopic eye is relatively too long (along its visual axis) for the converging power of its optics. Consequently it cannot focus distant (parallel) rays on the retina. Such rays converge in front of the retina (compare with hypermetropia). Close objects (producing diverging rays) are focused properly (hence short sighted). Myopia is corrected by using spectacles with diverging (concave) lenses.
Animation ID: EYE-MYOPIA-corrected-animation-FHD-Russell-Kightley
Duration: 00:00:03
copyright Russell Kightley
Animation resolution: 1920x1080 pixels @ 30.0 fps, ~95.7 Mbits/s
Animation keywords: corrected, diverging, eye, glasses, lens, myopia, myopic, ophthalmology, optics, optometry, short, sight, sightedness, spectacles
MYOPIA (short sightedness)2019-04-10T05:37:00ZMYOPIA (short sightedness). A normal eye elongates (in the animation - not in reality) and so becomes myopic. A diverging (bi-concave) lens then drops in front of the eye, correcting the myopia. This animation is actually a simulation since the paths o...PT3S//d3e1m60ptf1oym.cloudfront.net/d948706b-bfaa-434d-bd65-1e29a4edbf8e/EYE-MYOPIA-corrected-animation-FHD-Russell-Kightley_xlarge.jpghttps://www.scientific.pictures/-/galleries/animations/-/medias/d948706b-bfaa-434d-bd65-1e29a4edbf8e/pricehttps://www.scientific.pictures/-/galleries/animations/-/medias/d948706b-bfaa-434d-bd65-1e29a4edbf8e/price
HYPERMETROPIA1970-01-01T00:00:00+00:00Simulation of hypermetropia (long sightedness). Shows normal eye becoming hypermetropic and then being corrected.
The animation begins with a vertical section of a normal human adult eye focused on infinity (or a distant object) with the light rays ...PT3S//d3e1m60ptf1oym.cloudfront.net/1928821b-cf68-4d06-88f2-8a5dd09de6c5/EYE-hypermetropia-FHD-animation-Russell-Kightley_xlarge.jpghttps://www.scientific.pictures/-/galleries/animations/-/medias/1928821b-cf68-4d06-88f2-8a5dd09de6c5/pricehttps://www.scientific.pictures/-/galleries/animations/-/medias/1928821b-cf68-4d06-88f2-8a5dd09de6c5/price