Cornea

The external layer of the eye is called Cornea. It is one of the fundamental components of the human eye. As it allows the light to enter into the eye for one to have a clear vision. A cornea is usually 11mm in height and 12mm in length. The cornea further provides towards about 70 % of the focusing power of the eye. That is the principal reason why it is necessary to take care of the corneas.
Myopia, hyperopia, and astigmatism are Refractive problems. They are produced due to a change in the shape of the cornea.e

Contact With Us

  • Address :
  • 12A, Dr. Biresh Guha Street, Kolkata, West Bengal, India 700017
  • Phone :
  • +913322808545
  • Mail Us :
  • [email protected]

There are five layers of the cornea which have different functions:

Epithelium

Maintains the Eye Healthy is the external layer of the cornea. That means that whatever external objects will come in touch with the eyes. They will have to reach the epithelium. It is formed up of regenerative cells which regularly shed and keep reforming from time to time. It has 2 main functions.

Bowman’s Layer

Guards the Eye It is also known as an anterior limiting membrane. Also, it is formed up with protein fibres which are called collagen. It is a strong layer that is among the epithelium and the corneal stroma and is made to preserve and protect the stroma.

Stroma

Gives a sharpness for Clarity It is the central layer of the cornea and provides towards around 90% of the all over the thickness of the cornea. It includes essentially of collagen fibrils and water along with interlinked keratocytes which are used for the repair and support of the cornea. There are 200 – 300 layers of collagen fibrils are provided in a parallel manner, and this is the principal reason that allows the cornea to be completely transparent.

Descemet’s Membrane

Gaurd from Infection It is the 4th layer of the cornea which is quite thin still very effective as it assists guard upon all infections or injuries. It is also named as a posterior limiting membrane. It is built up of collagen fibrils and departs the stroma from the corneal endothelium.

Endothelium

Manages the Fluids is the ultimate layer of the cornea which is in the inner part. It is built up of mitochondria-rich cells. Washed by aqueous humor, the endothelium’s main purpose is to hold a precise balance among the fluids flowing in and out of the cornea at every time. It is the layer that appears directly in touch with the iris and pupil of the eye.