Prevention and care of the corneal surface
What is the cornea?
The cornea is the part of the eye that allows light to pass from the outside into the eye. It also protects the iris and the lens. To function properly, it must remain transparent and maintain the correct curvature. The cornea is made up of several layers, the outermost of which is the corneal epithelium.
Function of the cornea
The cornea is one of the most important components of the eye. It acts as a protective shield for the eyes, blocking UV rays and regulating the entry of external agents and light. This transparent layer is also responsible for capturing light, which is then converted into images by the eye.
The importance of good corneal healing after surgery
Following surgery on the surface of the eye (cataract, refractive surgery, LASIK, etc.), the cornea is affected by an incision or cut. To help the cornea heal, anti-inflammatory and wound-healing eye drops are required, in addition to antibiotics. The combination of high-molecular-weight hyaluronic acid and ophthalmic heparin ensures proper healing without affecting vision.
Corneal injuries
As the outermost protective layer of the eye, the corneal surface is susceptible to corneal injuries, which may include:
Keratitis: inflammation of the cornea.
Abrasions: including scratches or scrapes on the surface of the cornea, leading to ulcers or erosions.
Chemical injuries: caused by liquids coming into contact with the eye.
Contact lens problems: overuse, poor fit or sensitivity to lens care solutions.
Foreign bodies: exposure to sand or dust in the eye.
Ultraviolet injuries: caused by sunlight, sunlamps, reflections from snow or water, or arc welding.
Similarly, following procedures that affect the corneal surface, such as cataract surgery or refractive surgery (LASIK or PRK), changes occur in the corneal surface, resulting in damage to the epithelium.
Patients whose corneal thickness or any of its layers have been damaged due to trauma or keratoconus may require a keratoplasty or corneal graft. A full eye examination and pre-operative tests must always be carried out.