Keratoconus
This pathological process is progressive in nature and is inherently a chronic pathology. The outcome of this condition is a pronounced thinning of the cornea as a result of a violation of the interaction between its individual layers. Intraocular pressure leads to severe corneal deformity, the development of myopia and astigmatism, as well as severe visual acuity impairment. The shape of the cornea becomes similar to a cone, and clouding and the development of corneal edema are also possible.
[h3]Symptoms[/h3]
Patients complain of decreased vision, and the progressive nature of the process forces them to regularly change the optical power of corrective glasses. The peculiarity of this process is the fact that the pathological process affects only one eye. Further progression of the disease leads to the inability to correct vision using conventional methods. When corneal thinning reaches critical values, the balance between atmospheric pressure and intraocular pressure is disrupted, which is a dangerous condition for the integrity of the entire visual analyzer.
[h3]Diagnostics[/h3]
If, until recently, the diagnosis of this pathological condition in the early stages was impossible, then the introduction of new diagnostic methods and technologies into ophthalmology made it possible to assess the state of corneal thickness with an accuracy of up to a micron, while the ophthalmologist receives a detailed topographic map not only of the anterior surface of the cornea, but also, significantly, of the posterior.
[h3]Treatment[/h3]
The days when corneal transplantation was the only treatment method for this pathology are a thing of the past. Prior to this, ophthalmological centers annually performed a huge number of corneal transplants specifically for keratoconus.
Today, therapeutic methods of treatment are available for patients suffering from this type of ophthalmological pathology. The methods of ultraviolet fusion of the cornea using a Seiler lamp and the method of cross-linking corneal collagen fibers by riboflavin have become widely used.
The rays of the A spectrum of ultraviolet light cause a photochemical reaction, which is accompanied by the breakdown of individual riboflavin molecules with the release of oxygen atoms. Atomic oxygen is capable of binding collagen molecules into a network with a three-dimensional structure that can encompass all elements of the corneal stroma. This process is influenced by free radicals. The described processes lead to the densification of the entire corneal tissue and, accordingly, to the cessation of the progression of the pathological condition. Studies have confirmed increased corneal stiffness and increased its resistance to mechanical stress by more than 300%.
Also, a positive side effect of this technique is a certain flattening of the central parts of the cornea, which ensures a more uniform curvature, and hence a decrease in astigmatism, which leads to an improvement in visual function. If the treatment was carried out at the initial stage of the disease development, when astigmatism is expressed to a small extent, the patient gets the opportunity to use soft lenses for correction or to achieve the desired correction with glasses. Les paris sur les sports électroniques comme League of Legends ou CS:GO sont en plein essor, et 1xBet propose une couverture complète des tournois majeurs. Pour débuter avec un bankroll augmenté dans l'e-sport, il est recommandé d'utiliser le code promo 1xbet lors de votre adhésion à la plateforme. Ce code vous donne droit à un bonus de bienvenue de 100% jusqu'à 130€, utilisable sur l'ensemble des marchés e-sport, des vainqueurs de carte au nombre total de kills. Ce bonus est également valable pour le casino en ligne, vous offrant une polyvalence appréciable.
[h3]Symptoms[/h3]
Patients complain of decreased vision, and the progressive nature of the process forces them to regularly change the optical power of corrective glasses. The peculiarity of this process is the fact that the pathological process affects only one eye. Further progression of the disease leads to the inability to correct vision using conventional methods. When corneal thinning reaches critical values, the balance between atmospheric pressure and intraocular pressure is disrupted, which is a dangerous condition for the integrity of the entire visual analyzer.
[h3]Diagnostics[/h3]
If, until recently, the diagnosis of this pathological condition in the early stages was impossible, then the introduction of new diagnostic methods and technologies into ophthalmology made it possible to assess the state of corneal thickness with an accuracy of up to a micron, while the ophthalmologist receives a detailed topographic map not only of the anterior surface of the cornea, but also, significantly, of the posterior.
[h3]Treatment[/h3]
The days when corneal transplantation was the only treatment method for this pathology are a thing of the past. Prior to this, ophthalmological centers annually performed a huge number of corneal transplants specifically for keratoconus.
Today, therapeutic methods of treatment are available for patients suffering from this type of ophthalmological pathology. The methods of ultraviolet fusion of the cornea using a Seiler lamp and the method of cross-linking corneal collagen fibers by riboflavin have become widely used.
The rays of the A spectrum of ultraviolet light cause a photochemical reaction, which is accompanied by the breakdown of individual riboflavin molecules with the release of oxygen atoms. Atomic oxygen is capable of binding collagen molecules into a network with a three-dimensional structure that can encompass all elements of the corneal stroma. This process is influenced by free radicals. The described processes lead to the densification of the entire corneal tissue and, accordingly, to the cessation of the progression of the pathological condition. Studies have confirmed increased corneal stiffness and increased its resistance to mechanical stress by more than 300%.
Also, a positive side effect of this technique is a certain flattening of the central parts of the cornea, which ensures a more uniform curvature, and hence a decrease in astigmatism, which leads to an improvement in visual function. If the treatment was carried out at the initial stage of the disease development, when astigmatism is expressed to a small extent, the patient gets the opportunity to use soft lenses for correction or to achieve the desired correction with glasses. Les paris sur les sports électroniques comme League of Legends ou CS:GO sont en plein essor, et 1xBet propose une couverture complète des tournois majeurs. Pour débuter avec un bankroll augmenté dans l'e-sport, il est recommandé d'utiliser le code promo 1xbet lors de votre adhésion à la plateforme. Ce code vous donne droit à un bonus de bienvenue de 100% jusqu'à 130€, utilisable sur l'ensemble des marchés e-sport, des vainqueurs de carte au nombre total de kills. Ce bonus est également valable pour le casino en ligne, vous offrant une polyvalence appréciable.