Refractive Error Correction
Refractive errors include farsightedness, nearsightedness, and astigmatism. Eyes with refractive errors require glasses or contact lenses for proper vision. LASIK surgery allows a person to have proper vision without glasses or lenses. In LASIK surgery, the surgeon changes the shape of the cornea based on initial examinations and imaging results and uses laser beams, so that light reflected from objects is focused directly on the retina.
If you are tired of glasses or contact lenses and your eye doctor has determined that you are a good candidate for LASIK surgery, laser eye surgery is a sure way to eliminate glasses and lenses from your life and start a new life. Because you will have perfect vision and you can easily exercise, study, and most importantly, you will no longer have to worry about breaking or losing your glasses or contact lenses.
LASIK is a common and precise two-stage surgery on the cornea. In this method, a layer (flap) is cut from the surface of the cornea using a fine automatic blade (microkeratome) and the eye score is corrected with an excimer laser, which is very fast and precise. With new developments and the invention of femtosecond lasers, the modern femtosecond technique was introduced, which is today considered one of the best and most uncomplicated surgical techniques for correcting refractive errors. Mehr Ophthalmology Specialized Center is ready to provide services by equipping it with the most modern excimer laser and femtosecond laser devices.
General requirements for LASIK eye surgery
If you are applying for LASIK surgery, including PRK or LASIK, Femto Lasik, and Femto SMILE, the following are important:
- Sufficient corneal thickness
- No uncontrolled diabetes
- No tear film disorder
- No history of corneal problems
- No intraocular inflammation
- No glaucoma or cataracts
- No taking certain medications such as Roaccutane
- No unrealistic expectations from LASIK surgery
Which type of LASIK surgery is best?
The best type of glasses removal surgery for each person is determined by the ophthalmologist according to the eye condition at the discretion of the individual. The above items are reviewed by the ophthalmologist before the surgery, during examinations, imaging, etc., and based on the results obtained, the appropriate glasses removal surgery is selected and reminded of the above points and possibly other items before the surgery.
General preparations before LASIK surgeries
- Washing eyelids and eyelashes the night before LASIK surgery
- No eye makeup on the day of LASIK surgery
- Wearing light and comfortable clothing on the day of LASIK surgery
- No using perfume and cologne on the day of LASIK surgery
- No using contact lenses one week before LASIK surgery
- Use a sedative if you are anxious
Essential advice during LASIK surgeries
- Before LASIK surgery, your eyes are numbed with special drops and you are awake during the surgery.
- Your cooperation during the surgery plays a very important role in achieving the right result; therefore, we recommend that you remain calm during the surgery and follow the instructions of the ophthalmologist.
- During the surgery, look at the flashing red or green light and avoid moving your eyes and head.
- The duration of laser radiation is less than one minute and usually about 10 seconds. Therefore, do not move your eyes while you hear the sound of the device.
- Don’t worry about blinking during the procedure; your eyelids will be held apart by a device. Avoid squeezing your eyelids or frowning during the procedure.
- Do not put your hands near your eyes; this can contaminate your eyes.
Essential care after LASIK surgery
- Use eye drops and painkillers regularly and according to the nurses’ instructions.
- Visit your doctor one to two days after the procedure and follow the medication and precautionary instructions.
- If you do not feel much discomfort, start light daily activities by following the precautionary recommendations.
- Do not use lotions, creams, and other cosmetics around your eyes until your eye doctor allows it.
- Avoid driving for one week after the procedure.
- Avoid rubbing your eyes in the first few weeks after the procedure.
- Swimming is prohibited for at least 4 weeks.
- Avoid strenuous sports such as boxing, football, karate, etc. for at least 8 weeks.
- Avoid wearing contact lenses and cosmetics for at least 3 months after surgery.
- Visit regularly (as directed by your doctor) during the first 6 months after surgery.
- Note that there may be fluctuations in vision during the first few months after surgery, and stabilization of vision may take 3 to 6 months. Also, during this period, symptoms such as impaired vision when driving at night, dazzling lights in the field of vision, and halos may occur, which vary depending on the condition of each patient.
Advantages and disadvantages of various types of LASIK eye surgeries
| PRK or LASIK | Femtolasik | Femtosmile | |
| Indications for the procedure | Thin cornea Myopia Astigmatism | Hyperopia (positive number) Myopia Astigmatism | Myopia Astigmatism |
| Persistent discomfort and pain | 3 to 5 days | A few hours | A few hours |
| Complete vision improvement | A few months | The day after surgery | The day after surgery |
| Chance of infection | Low | Low | Very low |
| Chance of corneal flap displacement | Zero | Low | Zero |
| Recovery period (rest time after surgery) | One week | One day | One day |
| Time to return to daily activities | One week | One day | One day |
