Refractive surgery has become, thanks to laser-technology, an alternative in the last twenty years, in addition to glasses and contact lenses.
Indications for refractive surgery:
Large refractive asymmetry
Refractive problems that can not be corrected with glasses or contact lenses
Recovering from injuries
Specific activities at work and during leisure time (sports)
Most common techniques of refractive surgery:
Laser surgery with the excimer laser
Implantation of an artificial lens in the eye with or without removal of the natural lens
Implantation of acrylic plates or rings into the cornea
Possibilities and limitations of refractive surgery
In myopia up to 8 diopters there are good prospects for a satisfactory correction with the excimer laser. Myopia over 8 diopters can usually be only partially corrected with the excimer laser. High myopia can be corrected by artificial lens implantation.
In hyperopia up to 4 diopters, excimer laser treatment is producing good results. Up to 6 diopters satisfactory results can be expected.
Astigmatism can often be treated satisfactorily with the excimer laser.
Presbyopia can only be partially corrected today by surgery, so that after the age of 40 an additional visual aid, such as reading glasses will usually be required.
Refractive surgery is not itself a healing process but rather a method for the correction of vision problems that otherwise would be corrected with glasses or contact lenses.
The correction values are based on the current state of the patient’s refractive conditions. This means that refractive surgery does not anticipate or correct for future changes in refraction. For any future changes, a complementary or new procedure can become necessary.
Good conditions for refractive surgery
Aged over 22 with stable correction in the last 3 years.
A strong motivation to do many things without glasses or contact lenses.
Awareness of the patient that the result is subject to statistical fluctuations in refractive surgery and the maximum possible correction can not be achieved in each case. This may mean that most activities without glasses or contact lenses can be executed without problems, but sometimes a visual aid, such as glasses, must be accepted as a supplement.
Awareness of the patient that, after the age of 40 and even with normal
eyes, different corrections are usually required for proximity and
distance. There are techniques to reduce this problem surgically
however these techniques still do not permit achievement of a perfect
visual acuity for near and far. Therefore, the satisfaction level of
patients after a presbyopia treatment is still limited. This means a
willingness to accept a visual aid for certain activities, such as
Good anatomical condition of the eyes in the preliminary
investigations, including the corneal topography and corneal thickness
Excimer laser surgery techniques and information
We work with the latest technology and the latest laser with the full range of Schwind-Amaris, including wave-front-technology.
Clinica Oculistica Lugano SA Central Park Riva Antonio Caccia 1b CH-6900 Lugano T 0041 (0) 91 985 70 50