What Is A Pterygium?

March 02 22:30 2019 Print This Article

It is defined as a disorder in which there is a growth of the conjunctiva. It is benign in nature. It grows from the sclera and involves the nasal side. It mainly occurs due to the exposure to ultra violet light with the help of sun. The other reason can be dust or low humidity. The sun rays pass through the cornea and here they go under rarefaction. They get focused on the limbic area. The sun light passes from the later to medial side when it is passed through the cornea. On the other side the shadow of nose decreases the sun light and which is focused on the limbus which is temporal.

What are the signs and symptoms of Pterygium?

It includes the redness, dry, itchy eyes as well as the foreign body sensation. In advance cases it can affect the vision as it involves the cornea. It blocks the optical centre of cornea and leads to other eye problems as well as the formation of scar on cornea.

How Pterygium can be treated?

There are number of other treatment options which include the irradiation as well as graft in the conjunctiva with the help of auto graft. It can also occur due to the transplantation of amniotic membrane. It can also occur due to the suture as well as glue application. It is a benign condition and there is no need for the surgery. It has the ability to cover the pupil and affects the vision. One must also take care of acute symptoms. A proper treatment is required in case of surgical removal. On must have a long term follow up. One can also go for the strontium plaque therapy. It is a radioactive substance which helps in the treatment. There is no definite treatment till date. The radioactive substance gives rise to beta particles.

They have the ability to go to very short distances at the site of operation. It does not allow the growth of blood vessels and it occurs with the return of this condition. There is also a need of local anesthesia and is done on the same day when the excision of pterygium takes place. This is a concave disc made up of metal and is around 2 cm in diameter. It is hollow and is filled with the strontium salt which is not soluble.

The area which is placed on the eye is thin and delicate and has the strontium and it allows the beta particles to go. The amount of radiation is controlled by the time and the plaque is left in the contact of surface. It is a sensitive test and must be done with proper care. The integrity of plaque must be in contact and one must look for the radioactive material. Time controls the dose of radiation and the plaque remains in contact with the surface. The safe procedure for pterygium removal is conjunctiva auto grafting. It is quite effective.

When the pterygium is removed so is the conjunctiva. The sclera is covered by the auto grafting along with the tissue. It is known as the self tissue which is moved to the bare sclera and is fixed with the help of sutures. It can be also done with the help of adhesives. The safe and effective procedure for pterygium removal is the transplantation of amniotic membrane. It is an alternative to the auto graft transplantation. It is done in the cases where there is an excess removal of the conjunctiva.

This tissue comes from the inner most layer of placenta of human and replaces the damaged mucosal surfaces. It includes the construction of eye surfaces. It is mainly used in the surgical procedures for many years. It has anti adhesive effect. It helps in the process of epithelisation and has anti inflammatory properties too. It can also be fixed to the sclera with the help of adhesives. The use of antibiotic such as mito mycin have given an excellent results. It has a surface which does not show the redness, patches as well as the stitches. It makes the ocular surface quite suitable for the correction of vision.

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