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Questions asked by patients

What is the difference between PRK and LASIK?
After LASIK surgery the post op wound heals in shorter period of time, the pain is lesser and vision acuity improved quicker (during 12-24 hours after the surgery). LASIK provides the opportunity of operating more considerable vision defects, although it is a very invasive method requiring a prior cutting of corneal epithelium. (see: description of the method)

Can both eyes be operated at the same time?
YES, especially in the case of LASIK surgery. PRK surgery may be performed on two dates (7 - 14 days), which makes the full recuperation after the recovery last longer.

What does a patient feel during the surgery?
The eye is under anaesthesia and a patient does not feel any pain. He/She may possibly feel discomfort connected with the increase of pressure while a microkeratome is creating a flap (LASIK, EPILASIK). The very modification of corneal surface with a laser beam is not felt by the patient.

How long does a laser vision correction surgery last?
The entire surgery last from a few to several minutes, including the laser operation, which is measured in seconds. Preparation for the surgery lasts about 30 minutes.

How long does it take for a patient to return to normal fitness?
A patient usually regains his fitness during 24 - 48 hours following the surgery; however temporary blurry vision in the initial period after the surgery occurs quite often. A patient is recommended not to work for 2 days following the surgery. A patient who underwent PRK surgery regains his/her normal vision after a week or two.

Can a patient drive shortly after the surgery?
It is recommended that a patient should be driven by an accompanying person or use alternative means of transport. A patient should not drive for a few days, especially if his/her vision is still blurred.

Can a defect regress and have the same level as before the surgery?
The collected experience show that a defect may partly regress, but it will never attain the same level as before the surgery. The more minor defect, the lesser is the risk of regression.

Can the eye in which defect regression occurred be operated, if it was earlier corrected by laser?
Yes, it is possible to carry out another surgery. However, it depends on the procedure of the earlier surgery, cornea thickness and size of the corrected defect. In the case of undercorrection another surgery (carried out up to 6 months following the first one9 is gratuitous. In more complex cases another correction may be carried out in a a few stages.

Can presbyopia be corrected?
Presbyopia cannot be corrected with the use of excimer laser as it does not result form optic structure of the eye but from age-related disorders in the functioning of lens (loss of accommodative abilities). At present a method for presbyopia correction surgery is in the stage of development. However, we can consider possible transparent phacoemulsification of lens and implantation of ReSTOR accommodative lens.
(see: implantations of lenses)

What is the risk connected with the surgery?
The risk of mid- and post-operative complications occurs in 1% of the operated cases. Providing a patient with the information about possible complications is a very important element allowing him/her to take a conscious decision to undergo the surgery.
(see: qualification and risk)

What are the vision problems that may occur after the surgery?
Vision is blurred immediately after the surgery. The improvement is gradual. Patients with big pupils may have problems with seeing in the evening (dazzling, hallos around light sources and weakened contrast).

How long does a patient have to wait after the surgery before he/she can read or work with a computer?
After LASIK surgery a patient may read on the next day, although it is recommended that he/she should not strain his/her eyesight. Similarly, it is recommended that patients should limit their computer work.

Last Updated on Tuesday, 25 May 2010 11:49