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    What is myopia?

    Myopia is a refractive error in which light focuses in front of, and not on the retina. This is due to excess refractive power or too elongated eyeballs. In either case the brain receives a distorted image and for patients affected by myopia distant objects appear blurry or out of focus.


    Dr. Alonso clarifies the most frequent doubts regarding laser refractive surgery.

    The expertise of our medical team combined with the use of state-of-the-art technology guarantee the best results for our patients. Schedule a non-binding consultation and we will recommend you the best treatment option for your condition.


    Symptoms of myopia

    Reduced visibility of distant objects. Myopes tend to bring objects closer to see them better. Squinting eyes to focus on distant objects is a distinctive gesture of myopes.

    Types of myopia

    Different types of myopia include:

    Congenital myopia

    This condition usually has a genetic origin. It may be related to premature birth or a condition affecting the mother during pregnancy.

    Myopia magna

    It is the most severe type of myopia, usually in patients with a prescription over 6 dioptres. It is associated with ocular fundus problems in affected patients.

    Simple myopia

    When patients’ prescription is under 6 dioptres. It usually has an onset during childhood and stabilises around the age of 20.

    False myopia

    Transitory refractive errors caused by low light conditions or active accommodation.


    Eyeglasses and contact lenses are the usual methods to correct myopia. Patients who do not wish to rely on such methods may choose laser surgery.

    Different surgery methods are available for the correction of myopia. A personalised monitoring of patients is required to adapt a given treatment to the characteristics of the eye.


    • LASIK – Laser-Assisted in Situ Keratomileusis
    • PRK/LASEK – Photorefractive Keratectomy
    • ReLEx SMILE – Small-Incision Lenticule Extraction

    In cases that involve Excimer Laser Surgery it is possible to use a customised Wavefront TM guided system which reduces the induction of high order aberrations and grants a high quality vision.

    • SUPRACOR ® – Multifocal laser treatment of eye strain.


    Intraocular lens implants represent a possibility to correct refractive errors in patients whose eyes do not meet the criteria for laser surgery. Intraocular lenses may be:

    • Phakic intraocular lenses
      • Angle-fixated anterior chamber phakic intraocular lenses
      • Iris-fixated anterior chamber phakic intraocular lenses
      • Posterior chamber intraocular lenses(ICL)
    • Pseudophakic intraocular lens


    The expertise of our medical team combined with the use of state-of-the-art technology guarantee the best results for our patients.


    «I don’t need to fumble in the dark to find my eyeglasses anymore. Having myopia surgery at Clínica Rahhal was a right decision»

    Paloma Domingo. 

    «I want to thank Dr. Alonso for 15 years of well-being since he corrected my myopia (7-9 in each eye). I will always be grateful to him»

    Fernando Castellano. 

    «I feel really great since I was operated on by Dr. Rahhal three years ago. It was the best decision I could ever make. Thanks for everything!»

    Luis Bullich. 


    At CLÍNICA RAHHAL we want treatment to be affordable for our patients.



    Select any of the following FAQs from our patients and check the answers. If your doubts are not solved please use the contact form below to get in touch with us.

    When can I have surgery to correct myopia/hyperopia?

    Refractive errors (myopia, hyperopia, astigmatism) can only be corrected when the patient’s prescription is stabilised, which occurs around the age of 20.

    Can I have surgery if I also have astigmatism, aside from myopia/hyperopia?

    Yes, any of the procedures currently used (laser and lens implants) allow the simultaneous correction of both errors.

    What happens if my eyes move during the laser surgery procedure?

    The eye must remain as stable as possible during surgery, therefore patients lie on a treatment table with their eyes fixed on a red light on the Excimer Laser machine.

    A safety device called eye tracker compensates for involuntary eye movements following up the eye at milliseconds intervals and adjusting the direction of the laser pulses. In case of sudden movements the safety system fully stops the treatment.

    How long does the laser surgery last?

    It is a quick procedure. Patients remain in the surgery room for 15-20 minutes on average. Just a few seconds of that time are used for the application of the Excimer Laser. The remaining time is used to prepare the patient’s eye for surgery.

    Is laser surgery painful?

    Refractive surgery procedures are carried out using topical (local) anaesthetics (eye drops). Patients do not experience any pain during the operation.

    How will the post-operative/recovery period be?

    LASIK and PRK procedures have a very simple post-operative processes which require only eyedrops and artificial tears.

    After surgery it is recommended to rest at least for 24 hours. Most work activities can be resumed after 48 hours. Patients must wait at least a week to resume any sport activity.

    I have a very high prescription. Can I undergo refractive surgery?

    During the pre-op check up, our medical team will examine the condition of the cornea, namely corneal width and number of dioptres to be corrected. Laser treatment vaporises corneal tissue. The amount of extracted tissue is proportional to the number of dioptres to be treated. Intraocular lens implants may be considered if prescription is very high.

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