The human eye and colourful world notes handwritten
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the human eye lens is able to adjust its focal length to view both distant and nearby objects. This ability is called the power of accommodation of the eye. The person is able to see nearby objects clearly, but he is unable to see objects beyond 1.2 m.
When the ciliary muscles are relaxed, the eye lens becomes thin, the focal length increases, and the distant objects are clearly visible to the eyes. To see the nearby objects clearly, the ciliary muscles contract making the eye lens thicker.
When the ciliary muscles are relaxed, the eye lens becomes thin, the focal length increases, and the distant objects are clearly visible to the eyes. To see the nearby objects clearly, the ciliary muscles contract making the eye lens thicker.Thus, the focal length of the eye lens decreases and the nearby objects become visible to the eyes. Hence, the human eye lens is able to adjust its focal length to view both distant and nearby objects. This ability is called the power of accommodation of the eye.
Function of scleroid: It is the outermost covering that consists of white fibres and its function is to protect all parts of the eye.
Function of scleroid: It is the outermost covering that consists of white fibres and its function is to protect all parts of the eye.Function of choroid: It is a grey membrane attached to choroid from inner side. Its function is to darken the eye from inside so that no internal reflection takes place.
Cornea
CorneaIris
CorneaIrisPupil
CorneaIrisPupilCiliary muscle
CorneaIrisPupilCiliary muscleLens
CorneaIrisPupilCiliary muscleLensRetina
CorneaIrisPupilCiliary muscleLensRetinaBlind spot
CorneaIrisPupilCiliary muscleLensRetinaBlind spotOptic nerve
CorneaIrisPupilCiliary muscleLensRetinaBlind spotOptic nerveCornea:
CorneaIrisPupilCiliary muscleLensRetinaBlind spotOptic nerveCornea:It is the white part of the eye that allows light to enter.
CorneaIrisPupilCiliary muscleLensRetinaBlind spotOptic nerveCornea:It is the white part of the eye that allows light to enter.It acts as a window to the world.
CorneaIrisPupilCiliary muscleLensRetinaBlind spotOptic nerveCornea:It is the white part of the eye that allows light to enter.It acts as a window to the world.Iris
CorneaIrisPupilCiliary muscleLensRetinaBlind spotOptic nerveCornea:It is the white part of the eye that allows light to enter.It acts as a window to the world.IrisIt is colored part of the eye.
CorneaIrisPupilCiliary muscleLensRetinaBlind spotOptic nerveCornea:It is the white part of the eye that allows light to enter.It acts as a window to the world.IrisIt is colored part of the eye.It holds the pupil and also adjust the size of pupil according to the intensity of light.
CorneaIrisPupilCiliary muscleLensRetinaBlind spotOptic nerveCornea:It is the white part of the eye that allows light to enter.It acts as a window to the world.IrisIt is colored part of the eye.It holds the pupil and also adjust the size of pupil according to the intensity of light.Pupil:
CorneaIrisPupilCiliary muscleLensRetinaBlind spotOptic nerveCornea:It is the white part of the eye that allows light to enter.It acts as a window to the world.IrisIt is colored part of the eye.It holds the pupil and also adjust the size of pupil according to the intensity of light.Pupil:It is black in color and absorbs all the light rays falling on it.
CorneaIrisPupilCiliary muscleLensRetinaBlind spotOptic nerveCornea:It is the white part of the eye that allows light to enter.It acts as a window to the world.IrisIt is colored part of the eye.It holds the pupil and also adjust the size of pupil according to the intensity of light.Pupil:It is black in color and absorbs all the light rays falling on it.It gets constricted when the intensity of light is high.
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