|
Unlimited Tutoring & Homework Help
|
|
Vitreous chamber
It is the posterior, larger chamber between the lens and retina. It is filled with a semi-solid substance called the vitreous humour. Both the aqueous and vitreous humour serve to refract the light, give shape to the eyes, support the lens and maintain the intra-ocular pressure..
Causes of Hypermetropia
Hypermetropia is caused due to the following reasons: Shortening of the eyeball, that is, the eyeball becomes smaller. Increase in focal length of the eye lens. Focussing of light rays in normal eye and long sighted eye Let us now see how this defect is rectified. A lo..
Hypermetropia is caused due to the following reasons: Shortening of the eyeball, that is, the eyeball becomes smaller. Increase in focal length of the eye lens. Focussing of light rays in normal eye and long sighted eye Let us now see how this defect is rectified. A lo..Myopia
Myopia - You must have seen some people holding books very close to their eyes. This is because they suffering from myopia (short sightedness). A myopic person cannot see distant objects clearly because the far point of his eye is less than infinity. Myopia is an eye d..
Myopia - You must have seen some people holding books very close to their eyes. This is because they suffering from myopia (short sightedness). A myopic person cannot see distant objects clearly because the far point of his eye is less than infinity. Myopia is an eye d..Hypermetropia
You must have seen middle aged people holding a book away from their eyes to read properly. This is because they are not able to see the nearby objects clearly. We say that those people are suffering from hypermetropia (long sightedness). Hypermetropia or hyperopia is an eye..
You must have seen middle aged people holding a book away from their eyes to read properly. This is because they are not able to see the nearby objects clearly. We say that those people are suffering from hypermetropia (long sightedness). Hypermetropia or hyperopia is an eye..Functions of fibrous tunic
i) It provides protection as it is a tough layer. ii) It gives shape to the eye. iii) It provides surface for the attachment of eye muscles. iv) The anterior transparent cornea allows the light to pass through the lens. The bulging shape of the cornea also refracts th..
Power of Accommodation 
The ability of the eye to focus objects lying at different distances is called the power of accommodation of the eye. How Does an Eye Focus Objects at Varying Distances? To focus on distant objects the ciliary muscles relax making the eye lens thin. As..
The ability of the eye to focus objects lying at different distances is called the power of accommodation of the eye. How Does an Eye Focus Objects at Varying Distances? To focus on distant objects the ciliary muscles relax making the eye lens thin. As..Newton's Corpuscular Theory
According to Sir Issac Newton's Corpuscular Theory, a luminous body continuously emits tiny, light and elastic particles called corpuscles in all directions. When these particles fall on the retina of the eye, they produce the sensation of vision. This theory could explain a number of phe..
Biomembranes
Every cell, whether it is prokaryotic or eukaryotic, is enclosed in a thin covering called cell membrane. It is also called as plasma membrane or plasma lemma. The cell membrane can only be seen through the electron microscope since its thickness is well below the resolving power of huma..
Biomembranes
Introduction - Every cell, whether it is prokaryotic or eukaryotic, is enclosed in a thin covering called cell membrane. It is also called as plasma membrane or plasma lemma. The cell membrane can only be seen through the electron microscope since its thickness is well below the resolving power of ..
refraction of human eye
">Refractive Errors or Defects of Vision The abnormalities in the normal vision of the eye due to the change in focal length of the lens or due to the deformation of cornea are known as refractive errors or defects of vision. Myopia Myopia is an eye defect du..
See what our Users say :
I love the interaction and ability to explain the process of math problem in depth! Would like see the same for all future lessons one on one! THANK YOU!!!
Very good, Tutor was clear and guided me through the whole algebra problems
This Tutor Vista is GREAT! loved this session, it helped me heaps.
It was a great pleasure working with this tutor was able to take me through the steps of my math problems which was very helpful because since I don't have lots of experience with math by the tutor doing the steps it helps me understand a great deal. Im so excited that Im finally getting this amazing service. We got so much done. thank you.