What is astigmatism?


Astigmatism is a common and generally treatable defect in the curvature of the eye that causes blurred vision at long and short distances.

Astigmatism occurs when the front surface of the eye (the cornea) and the crystalline lens inside the eye have different curvature. The result is that the cornea does not have a spherical shape but a toric (oval) shape. This causes blurred vision at all distances.

Astigmatism often occurs at birth and can coexist with myopia or hyperopia. Many times it will not require some kind of correction, but when needed, vision can be restored according to subjective needs of the patient to subjective needs of the patient, with glasses, contact lenses and refractive surgery.




Symptoms of astigmatism may include:





The eye has two parts that focus the images:



In a normal-shaped eye, each of these focus elements has a perfectly smooth curvature. When the cornea and lens have such a curvature, the incoming light is properly refracted and focuses sharply onto the retina.

If the cornea or lens is not uniformed and smoothly curved, the light rays are not properly refracted, resulting in what we call refractive error.

Astigmatism occurs when the cornea or lens of the eye, rather than being part of a sphere in shape, have a greater curvature in one axis. When this happens to the cornea, we are talking about corneal astigmatism (which is the most common). Similarly, if this difference in curvature exists in the lens of the eye, we are talking about lens astigmatism (rarer). Any of these two types of astigmatism can cause visual problems.

Astigmatism usually exists from the moment of birth and more rarely can occur after an eye injury, illness or surgery. Astigmatism is not caused and does not get worse by reading in low light conditions, when we are very close to the TV, etc.




Astigmatism is diagnosed with a standard ophthalmological examination, which includes a refractive examination and a general eye examination.

Refractive examination determines whether there are vision problems such as myopia, hyperopia, astigmatism or presbyopia.

Also, your ophthalmologist will probably administer eye drops to increase the pupils of the eyes (mydriasis) and to make a complete and detailed examination of them. This dilation allows your ophthalmologist to have a wider field of vision inside your eyes and your retina.




The main goal of treating astigmatism is to improve vision by helping light to focus properly onto the retina by using corrective lenses or refractive surgery.


Ways to treat astigmatism include:



Why Emmetropia


We are the team with the best experience in laser surgery in the whole Crete, with a stable presence of over 20 years in cutting-edge technology and pioneering surgery as it is captured by dozens of publications, of clinical research, surgical protocols and monitoring of their clinical results.

Emmetropia Eye Clinic is the first private refractive surgery clinic in Greece to acquire ISO 9001 and all our actions are dictated by strict quality and verification protocols. We have state-of-the-art equipment infrastructure and we are constantly investing in this sector, being the best- equipped Ophthalmology Clinic in Crete and all of Greece. With the continuous upgrade and enrichment of techniques and machines, around 10,000 cases have been performed with recorded statistics and with a qualitative analysis of the results, available to all our patients.

In Emmetropia we are not only buy new laser technology but we actively participate in its upgrade and refinement. Proof of this is that Emmetropia Eye Clinic was chosen as one of the five centres globally to perfect and implement on the worlds market the refractive platform Schwind Amaris, the flagship of lasers today.

Finally, Emmetropia Eye Clinic attracts a large number of foreign surgeons from all over the world who come to immerse themselves by attending its clinical activities on a semester or annual basis and produce important research work and scientific papers.

At the Emmetropia Eye Clinic, we ensure that all measurements, examinations and finally treatments are performed with great precision. Our medical staff will inform you and advise you in detail on the best possible solution. In our center there is a special section for glasses and contact lenses.