hyperopic astigmatism
El Hypermetropic astigmatism occurs when one or both axes (vertical and horizontal) do not focus on the retina, but they do it from behind it.
However, it is not considered a disease, but rather a refractive error that originates when the cornea is irregular along its surface and, therefore, does not have the same curvature in all its areas.
Today hyperopic astigmatism can be corrected permanently to by refractive surgery.
hyperopic astigmatism
El Hypermetropic astigmatism occurs when one or both axes (vertical and horizontal) do not focus on the retina, but they do it from behind it.
However, it is not considered a disease, but rather a refractive error that originates when the cornea is irregular along its surface and, therefore, does not have the same curvature in all its areas.
Today hyperopic astigmatism can be corrected permanently by refractive surgery.
What is hypermetropic astigmatism?
El astigmatism it's a refractive defect what happens when the cornea does not have the same curvature in all its parts and therefore, the light that enters the eye is projected at different points on the retina.
El hypermetropic astigmatism is a type of astigmatism what happens when one or both main meridians of the eye focus as farsighted, that is, behind the retina.
Two types of hyperopic astigmatism:
- simple hypermetropic astigmatism: It happens when One axis focuses on the retina and the other axis focuses behind it.
- compound hyperopic astigmatism: It happens when the two axes Of the eye focus behind the retina.
This refractive defect is characterized by causing blurred vision or distorted images at any distance.
simple hyperopic astigmatism
compound hyperopic astigmatism
El Hypermetropic astigmatism can cause the following symptoms:
- Blurred vision at any distance.
- Distorted image of objects.
- Eye pain.
- Headache.
- Visual fatigue.
- Strabismus in children.
Causes of hypermetropic astigmatism
The cause of hyperopic astigmatism is the irregularity in the curvature of the cornea that causes the light to focus at several points on the retina at the same time. The irregularity in the corena causes one or both axes of the eye not to project on the retina and, in the case of hypermetropic astigmatism, one or both focal lines are in focus. behind the retina.
This corneal defect is guilty of vision blurred or distorted at any distance.
Most Common Symptoms
El principal astigmatism symptom hypermetropic is blurred vision, since it occurs at any distance. However, hyperopic astigmatism can also cause the eyes to be seen. elongated or distorted objects.
When hypermetropic astigmatism is not diagnosed in time, it usually leads to strong eye pain due to the effort exerted by the eye to focus the images correctly. This pain is more common after spending a lot of time in front of the computer.
Difficulty focusing images correctly produces common symptoms such as headaches and eyestrain. Also, the children with undiagnosed hypermetropic astigmatism may present squint.
Operation of hypermetropic astigmatism
Currently, the Hyperopic astigmatism can be treated with glasses or contact lenses that correct corneal deformity and focusing problems.
However, in addition to the use of glasses, it can also be permanently corrected by astigmatism operationlike other vision defects like myopia and / or the hyperopia.
These are the main surgical techniques what we use to operate hypermetropic astigmatism are:
FemtoLasik
La refractive surgery to correct hypermetropic astigmatism by FemtoLasik is surgery is the newest and most innovative, since made entirely with laser technology.
The procedure consists of applying femtosecond laser to separate the superficial tissues of the cornea. Once we have done this step, we apply the excimer laser that is in charge of removing graduation What causes hypermetropic astigmatism?
The great advantage of this procedure is that the femtosecond laser is more precise than the surgeon's hand, reduces the risk of possible complications and offers a faster recovery.
PRK
La Correction of hyperopic astigmatism through refractive surgery PRK It is a highly recommended option for those people who do not have a sufficiently large corneal thickness or carry out impact activities in which it is easy to receive a strong blow to the eyes (boxers, police ...).
This operation consists of removing the superficial layer of the cornea, the corneal epithelium, by scraping. Later, we apply the excimer laser for mold the cornea and remove graduation.
Next, we place the patient with therapeutic lenses that must be worn for as long as the medical specialist indicates. The corneal epithelium regenerates on its own, that is, it will grow again during the postoperative period.
PRK refractive surgery is the first technique created to correct refractive errors with laser and, today, it is still one of the most used.
LASIK
The technique Lasik It is the most used today. It consists of making a corneal flap by mechanical cutting with microkeratome for después apply the excimer laser programmed to remove the graduation. Once we have performed this maneuver, we place the corneal flap back in place.
The patient can go home after the intervention since we carry out the surgery without the need for any type of suture.
Intraocular lens
Another alternative for correct hypermetropic astigmatism is implantation of an intraocular lens, a highly recommended option in patients who are not candidates for laser surgeries like FemtoLASIK, LASIK or PRK.
Our toric intraocular lenses are designed for treat astigmatism permanently, since they allow correcting the asymmetry of the eye and significantly improve distance and near vision.
These lenses are made with a custom curvature, according to the characteristics of the patient's eye, and provide great visual sharpness. The placement of these intraocular lenses for hyperopic astigmatism surgery It must be carried out very precisely for its correct implantation.
Laser eye surgery to correct hypermetropic astigmatism lasts ten minutes per eye, are carried out under the effects of topical anesthesia applied in drops and are ambulatory.
In all surgical options we get correct hypermetropic astigmatism in its entirety as well as the visual improvement you can start to notice four hours after the operation.
Hypermetropic astigmatism in children
During the childhood stage, the ocular structure is still in the development phase, since the process of growth and formation of the eyeball does not end until 18 or 21 years of age.
For this reason, in order to be eligible for refractive surgery, it is required that the person has at least 18 years of age. Otherwise, there is a risk that the problem will recur after the operation.
El Hypermetropic astigmatism in children is corrected with glasses provided with toric lenses, or toric contact lenses, which help mold the curvature of the cornea to compensate for the focus defect.
It is also important to visit the ophthalmologist regularly, since this disorder can interfere with the learning process of children at school.
To do this, check vision at least twice a year to make the pertinent corrections to glasses or contact lenses and ensure good vision for the patient.
