What is a sentence for cornea?
What is a sentence for cornea?
2. The cornea is the transparent membrane that covers the front of the eye. 3. The ring is virtually invisible around the central cornea which is the critical area for clear vision.
What is cornea simple words?
The cornea is the front part of the eye. It is the clear transparent section of the eye. The cornea covers the iris, pupil, and the eye chamber. It is a special form of tissue.
What is the use of cornea?
The cornea acts as the eye’s outermost lens. It functions like a window that controls and focuses the entry of light into the eye. The cornea contributes between 65- 75 percent of the eye’s total focusing power.
How do we see cornea?
All the different parts of your eyes work together to help you see. First, light passes through the cornea (the clear front layer of the eye). The cornea is shaped like a dome and bends light to help the eye focus. Some of this light enters the eye through an opening called the pupil (PYOO-pul).
What is cornea Class 10 CBSE?
(ii) Cornea : It is a thin membrane which covers the eye ball. It acts like a lens which refracts the light entering the eye.
What does cornea mean?
Definition of cornea. : the transparent part of the coat of the eyeball that covers the iris and pupil and admits light to the interior — see eye illustration.
What happens if the cornea is damaged?
When the cornea is damaged, its smoothness and clarity may be lost. Scars, swelling or irregular shape may cause the cornea to scatter or distort light, resulting in glare or blurred vision.
What is the plural of cornea?
corneas is a plural form of cornea. the transparent dome-shaped anterior portion of the outer covering of the eye; it covers the iris and pupil, and is continuous with the sclera.
What are the risks of a cornea transplant?
As with any surgical procedures, there are risks. For the most part, cornea transplants are safe, but complications can include eye infection, cataracts (clouding of the eye’s lens), glaucoma (increased pressure inside the eyeball), problems with stitches, swelling, and of course, rejection of the donor cornea [source: Mayo Clinic].