Cornea

In the cornea unit of Área Oftalmológica Avanzada We treat all those processes and diseases that affect both the cornea and the ocular surface.

This unit is one of the most relevant in our center and treats such important pathologies as the Dry Eye Blepharitis, The conjunctivitis and refractive errors like myopia, farsightedness, astigmatism y presbyopia as well as handling the refractive surgery to correct them.

Cornea

In the cornea unit of Área Oftalmológica Avanzada We treat all those processes and diseases that affect both the cornea and the ocular surface.

This unit is one of the most relevant in our center and treats such important pathologies as the Dry Eye Blepharitis  conjunctivitis and refractive errors like myopia, farsightedness, astigmatism y presbyopia as well as handling the refractive surgery to correct them.

Cornea: What is it?

La cornea is a transparent, disk-shaped tissue that allows light to pass from outside to inside the eye. The cornea has optical refractive properties and, to function properly, it must be fully transparent and have a determined curvature.

La cornea is in the anterior part of the eye, protects the iris and the lens, and is made up of six layers of cellular tissue known as corneal epithelium, Bowman's membrane, corneal stroma, DUA layer, Descemet's membrane, and the posterior epithelium or corneal endothelium.

Corneal function

La cornea is one of the most important eye structures so that you can enjoy a correct vision. The corneal functions are:

  • Act as a protective membrane to prevent external agents such as dust, bacteria and germs can affect the health of the iris and the lens. The protective function of the cornea is shared with other parts of the eye such as the eyelids and eyelashes.
  • The cornea has optical properties of refraction that make two thirds of the eye's focus possible. The cornea has the ability to focus Static and reinforcing the lens function to have a good vision.
  • The cornea is the tissue that allows the outdoor light penetrate the eye to project on the retina.
cornea

Cornea diseases

Some diseases can affect the anatomy and function of the cornea, causing serious vision defects. The most commons are:

Damaged cornea

La damaged or deformed cornea can bring as consequence refractive defects and myopia farsightedness and astigmatism. In addition, since the cornea is a tissue that is exposed to the outside, it presents a greater risk of suffering from other ocular structures.

Among the conditions that may cause a damaged cornea we found:

Allergies

La cornea protects iris and lens from external factors Like dust and pollen.

El contact of this membrane with any of these agents can cause a conjunctivitis what causes the redness and the irritation of the outer layers of the cornea.

Ulcers

The corneal ulcers are caused by Eye diseases, infections, allergies badly treated or by the presence of strange body inside the eye among others.

This disease must be treated in time to avoid aggravating and damaging the cornea significantly.

Erosion

La corneal erosion it happens when el corneal epithelium separates from the corneal layer underneath, causing blurred vision and very strong eye pain.

Most of the cells that are present in the cornea are in the epithelium, for this reason corneal erosions are among the most painful diseases of the cornea.

Keratitis

When we talk about corneal diseases, we often hear mention of corneal ulcers and the keratitis. The latter is the name used in ophthalmology to refer to a corneal ulcer, produced by a bacterial infection, viral, fungal o parasitic.

La keratitis can also be caused by other factors such as severe dry eye, trauma or improper closure of the eyelids. He keratitis treatment It will depend exclusively on the cause that triggered the ulcer in the tissue.

Corneal dystrophy

The set of corneal dystrophies is the set of diseases that progress progressively and provoke corneal opacity. Recall that if the cornea loses its transparent property, it cannot function properly.

The corneal dystrophies are hereditary, of genetic cause, and manifest bilaterally. 

Corneal edema

El corneal edema it can be congenital or hereditary, and it is the consequence of an accumulation of fluid in the tissues. Inflammation of the cornea produces the loss of transparency and lack of hydration. Edema can cause the epithelial layer to become cloudy and affect vision.

cornea diseases

Keratoconus

Among the most serious corneal diseases is the keratoconus. This corneal disease affects the anatomy of the cornea, modifying its form y decreasing its thickness in the central area. The keratoconus progresses progressively due to the alteration of the collagen fibers of the cornea

Currently there are Treatments They help prevent the progress of this disease. Among the most effective options are:

  • Using soft contact lenses specially designed for each patient.
  • Using gas permeable contact lenses that act covering the cornea.
  • Implementation of intracorneal rings in the thickness of the cornea to flatten the membrane.
  • When keratoconus is very advanced, the best treatment is cornea transplant, where we replace the damaged tissue with a new one from a donor.

If you think you have any symptoms of these diseases that we have just described, do not hesitate to do an ophthalmological review with one of our corneal specialists in Área Oftalmológica Avanzada. We will wait for you! 

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Cornea
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Cornea
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We explain the main diseases that affect the cornea. In the cornea and ocular surface unit we are specialists. Enter now!
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Área Oftalmológica Avanzada
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