complianz-gdpr domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/platne/serwer289828/public_html/autoinstalator/smorawskiokulistyka.pl/wordpress85328/wp-includes/functions.php on line 6131Astigmatism is associated with an asymmetrical structure of the cornea. It occurs when different corneal meridians have different curvatures. In such cases, the cornea takes on an ellipsoidal rather than a spherical shape (resembling a rugby ball more than a football). This irregular shape causes light to refract more weakly in flatter meridians and more strongly in steeper ones. As a result of these changes in the cornea’s refractive power, the patient’s vision is not only blurry but also distorted in shape—flattened in one axis and slightly elongated in the perpendicular one. The most challenging situation occurs when the axes that distort the object’s shape are not aligned vertically or horizontally. This type of astigmatism is known as oblique astigmatism. Astigmatism can occur in isolation or alongside hyperopia or myopia. When it exceeds 2–2.5 diopters, it presents a significant challenge for optical correction, especially when part of a more complex refractive error (e.g., astigmatism in a patient with high hyperopia and presbyopia). In such cases, laser vision correction appears to be the ideal solution.
Astigmatism – a burdensome defect you can be free from. What are the symptoms of astigmatism? Spatial disorientation, headaches, dizziness, difficulty seeing fine details, and a significant decline in vision quality in the evening and in poor lighting. Astigmatism is usually associated with myopia and hyperopia. It is also often an element of presbyopia
Who is FemtoLasik for?
Why choose FemtoLasik?
Shortsightness (Myopia), Astigmatism, Myopic Astigmatism, Hyperopic Astigmatism, Presbyopia
Who is Trans-PRK for?
Why choose Trans-PRK?
Mild Nearsightedness (Mild Myopia) and Myopic Astigmatism, Mild Farsightedness (Mild Hyperopia) and Hyoperopic Astigmatism, Mild Astigmatism
Who is EBK for?
Why choose EBK?
Mild Shortsightedness (Mild Myopia) and Myopic Astigmatism, Mild Farsightedness (Mild Hyperopia) and Hyperopic Astigmatism, Mild Astigmatism
Are you struggling with astigmatism and want to effectively eliminate this vision problem? Contact us to determine the treatment method best suited to your case.
Hyperopia, hyperopic astigmatism, and astigmatism are the most resistant refractive errors to correct. To eliminate farsightedness, a change is required that results in increased corneal steepening. Steepening the corneal dome is significantly more challenging to achieve with laser correction than flattening it. This creates the need for a procedure with a higher EMO (Effective Modifying Power), which is more effective at reshaping the tissue. Femto-LASIK is such a procedure. It is a two-stage treatment. The first stage, which involves creating a corneal flap, simultaneously reduces the rigidity (softens) of the cornea. Once prepared this way, the cornea becomes much more pliable and susceptible to reshaping during the second stage. In the second stage, an excimer laser is applied to the corneal stroma exposed under the flap. In the treatment of presbyopia, we take advantage of the practicality and easy access provided by the presence of the corneal flap. As we age, the demand for visual power for near-distance work increases. To meet this growing need, we can compensate for the increasing near-vision impairment through a minimally invasive and simple method: a flap lift.
The epithelium covers the corneal stroma and is its outermost layer. In surface methods (EBK, Trans-PRK, Topo-guided-PRK), the first step is the removal of the corneal epithelium. Due to the specific way the laser operates, removing the epithelium with a laser leaves the cornea highly uniform in terms of surface texture and hydration levels. The correction stage follows immediately after the epithelial removal phase, making the overall result significantly more predictable compared to manual removal.
The human eye is not perfect; minor irregularities often occur on the corneal surface. These are frequently compensated for by the overlying epithelium. Thus, the epithelium acts as a tissue that masks imperfections in the corneal stroma. When removing the epithelium manually, these surface imperfections are exposed rather than eliminated. However, by using an excimer laser for epithelial removal, we eliminate corneal irregularities along with the epithelium, achieving an optically ideal surface.
EBK and PRK are surface vision correction methods in which the first, preparatory stage is the removal of the corneal epithelium. In PRK, the epithelium is removed manually using a special solution that loosens the connection between the epithelium and the corneal stroma. In EBK, also a manual method, a specialized device called an epikeratome is used to remove the epithelium.
The corneal epithelium regenerates—or regrows—within several dozen hours, forming a perfectly smooth and even surface. The epithelium has a massive impact on visual quality, and even microscopic irregularities on its surface can drastically impair vision.
The epithelium is a fascinating structure with the ability to mask any imperfections of the underlying stroma. This characteristic is very often utilized in the treatment of corneal irregularities and keratoconus.
