The pterygium is a fibrovascular proliferation with triangular shape that grows from the conjunctiva to the cornea. It is located in the palpebral fissure, more frequently in nasally than temporary. In its growth will causing destruction of the scleral-corneal limbus sector wetting eye drops and superficial corneal stroma that invaded the area.
The causes of the appearance of pterygium are closely related to time of exposure to ultraviolet light, which is considered the initial trigger, although influenced by other factors like being under dry, windy and dusty climates, in addition to high temperatures, working outdoors or dusty environments. A high percentage of cases develop on a pinguecula.
Symptoms of pterygium
the main symptoms presented by the pterygium are:
Sensation of foreign body
-Escozor or sunburn
- Fotofobia and tearing
-Pain if pterigion very bulky
Their advance causes changes or increased astigmatism.
Consequences and treatment of pterygium
To prevent its evolution, is treated by wetting eye drops ( artificial tears ) and protection of the agents ( sunglasses with UV protection 100 % ). Surgical treatment is indicated only when there is evidence of progression. This surgery is based on a Simple extirpation in the pterygium very small size. If this is highly developed, is indicated conjunctival autograft in the affected and using biological glues or conjunctival suture to secure his grip area.
It is important to always high recurrence rate having this pathology. In successive recurrences this indicated performing sectors autologous scleral-corneal limbus and sometimes buccal mucosa graft when no longer have healthy conjunctiva due to multiple recurrences.
Diseases arising from pterygium
Corneal Ulcers in the forward
- Strabismus with diplopia
-Simblefaron of hard resolution
More about pterigion:https://www.topdoctors.es/diccionario-medico/pterigion-y-pingueecula