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 6131Presbyopia, also known as age-related farsightedness, is a condition that causes a decline in near vision. Its onset occurs earlier in individuals with hyperopia, and early symptoms (prodromes) can appear in patients as early as age 35. Initially, these symptoms may only affect specific, more demanding tasks, such as threading a needle or trimming nails. Over time, the symptoms extend to all near-vision activities, which we gradually begin to perform at an increasing distance from our eyes.
The phenomenon of presbyopia is the resul t of weakened accommodation. During near-vision tasks, our lens becomes more spherical, providing the additional power needed for reading and close-up work. This change in the lens’s shape is driven by the contraction of another key component of the mechanism—the ciliary muscle. As the years pass, the ciliary muscle weakens, and the lens becomes increasingly rigid. This significantly reduces the lens’s ability to deform during near work, consequently increasing our dependence on glasses for close-up activities.
Presbyopia progresses steadily from its onset around age 35–40 until the age of 60–65. Typically, the condition increases by 0.5 dioptres every five years. By age 60–65, the near-vision deficit reaches its maximum value of +3.5 dioptres.
It is important to emphasize that the power of reading glasses depends not only on the stage of presbyopia but also on the patient’s distance vision prescription. Hyperopia (farsightedness) is added to the presbyopic value, while myopia (nearsightedness) is subtracted from it.
Consequently, a 65-year-old myopic patient with a -1.0 dioptre distance correction will require approximately +2.5 dioptres for reading. In contrast, a patient of the same age with +1.0 dioptre hyperopia will need reading glasses with a power of approximately +4.5 dioptres.
Presbyopia cannot be halted through medication or eye exercises. However, advanced treatment options are available that, in many cases, allow patients to maintain clear near vision while preserving sharp distance acuity
When focusing on near objects, the ciliary muscle contracts, allowing the lens to change its shape (becoming thicker and more convex). This provides the additional optical power required for near-vision tasks. Conversely, when viewing distant objects, the ciliary muscle relaxes, enabling the lens to return to its original state (becoming thinner and flatter).
As we age, the accommodation mechanism gradually weakens. The first symptom of this decline is a delayed focusing effect (similar to a slow “zoom-in”) when shifting one’s gaze from distance to near or vice versa.
Who is FemtoLasik for?
Why choose FemtoLasik?
Shortsightness (Myopia), Astigmatism, Myopic Astigmatism, Hyperopic Astigmatism, Presbyopia
Who is Presbyond for?
Why choose Presbyond?
Shortsightness (Myopia), Farsightedness (Hyperopia), Astigmatism, Myopic Astigmatism, Presbyopia
Are you struggling with presbyopia and want to effectively get rid of 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.
Presbyond gives the cornea a specific shape. After treatment with this method, the cornea has varying curvatures in different areas. This allows for increased corneal power in the specific zones used for reading, providing the patient with the additional boost needed for near-distance work.
However, not every patient is a candidate for the Presbyond procedure. Its effectiveness and feasibility depend on the initial corneal parameters, primarily the pre-operative corneal curvature, which is measured and evaluated at critical points.
