Documentation
FemtoLASIK
The indications for FemtoLASIK include the correction of myopia, hyperopia, and astigmatism in people over 18 years of age with a stable prescription for at least one year. It can also be used in cases of presbyopia, and in some variants such as FemtoLASIK Xtra for cases of moderate to high myopia or hyperopia, although a complete ophthalmological examination is essential to determine individual suitability.
Conditions and Corrections
- Refractive Errors: Myopia, hyperopia, astigmatism, and presbyopia.
- Stable Prescription: No significant changes in eye prescription in the last year.
- Age: Must be over 18 years old, although ideally over 21 for greater vision stability.
Specific Cases
- Moderate to High Myopia and Hyperopia: The Femtolasik Xtra technique may be an option for these cases.
- Keratoconus: It can be used in patients with keratoconus, even with normal previous studies, or to make incisions for intracorneal rings.
- Thin Corneal Thickness: It may be a solution for patients with thin corneas who were not candidates for other techniques.
- Cataract Surgery: It has been incorporated as a technique to increase precision when making the incisions necessary for cataract extraction and intraocular lens implantation.
Important
- It is crucial to undergo a complete ophthalmological examination to determine suitability for the procedure.
- The prior evaluation is necessary to rule out eye diseases such as keratoconus or advanced glaucoma.
PresbyLASIK
The main indications for PresbyLASIK are for people with presbyopia (age-related farsightedness), especially those who also have myopia, hyperopia, or astigmatism and who wish to correct their distance and near vision in a single surgery. The procedure is recommended for those who experience difficulty reading or seeing close objects, and the typical age is between 50 and 55 years, although this depends on an ophthalmologist’s evaluation.Main Indications
- Presbyopia or age-related farsightedness: This is the main indication, the difficulty focusing on near objects that appears with age.
- Combination with other refractive errors: Surgery can simultaneously correct presbyopia along with other visual problems such as myopia, hyperopia, or astigmatism.
- Difficulty reading and seeing up close: Symptoms include blurred vision in near tasks, such as reading or using a computer, and eye strain.
- Need for more light: People who require more light to perform near activities are also good candidates.
- Patients who do not want to wear glasses or contact lenses: The goal is to achieve independence from reading glasses, bifocals, or multifocal contact lenses.
- Patients already using intraocular lenses: It can be performed on cataract surgery patients with lenses that only provide distance vision, to restore their vision. up close.
Technique Features
- Multi-distance vision: The goal is for the patient to be able to see clearly at far, near, and intermediate distances without glasses.
- Advanced monovision or multifocal focus: This is achieved by customizing the laser treatment, creating a subtle difference between both eyes to optimize vision at different distances.
- Rapid recovery: Generally, results are noticeable the day after the procedure, although near vision may take a few more days to fully stabilize.
ReLEx SMILE
ReLEx SMILE is indicated for the correction of myopia (up to -10 diopters) and astigmatism (up to -5 diopters) in adults with sufficient corneal thickness and stable prescription. It is ideal for active patients, especially athletes, and those seeking a quick recovery with a lower risk of complications, as it is a minimally invasive technique that does not require a flap.Indications and Selection Criteria
- Refractive Problem: Myopia (between -0.5 and -10 diopters) and/or astigmatism (up to -5 diopters).
- Age: Over 18 years of age (some sources mention a minimum of 18 years, while others suggest 21, so it is important to consult a professional).
- Prescription Stability: The refractive problem must be stable, without significant changes in the last year.
- Corneal Thickness: Sufficient corneal thickness is necessary to perform the procedure.
- Lifestyle: This is a good option for athletes, as the risk of complications from trauma is lower.
Before Surgery
- Avoid Contact Lenses: Do not wear contact lenses in the days leading up to surgery, and in some cases, until the eye can be manipulated.
- Hygiene: Maintain good eye hygiene, but do not apply cosmetics such as makeup around the eyes the day before the operation.
- Avoid Excesses: It is recommended to avoid alcoholic beverages and tobacco in the days leading up to the surgery and to reduce heavy meals.
- Rest: It is important to get plenty of rest in the days leading up to the procedure.
- Come Accompanied: It is recommended to come accompanied on the day of the procedure.
After Surgery
- Rest: Rest and keep your eyes closed for the first few hours, and avoid straining your eyes.
- Do Not Rub Your Eyes: Avoid rubbing your eyes to prevent damage. Avoid High-Risk Activities: Avoid contact sports for the first few weeks.
- Eye Hygiene: Avoid using makeup, creams, or lotions around your eyes for the first month.
- Swimming and Hot Tubs: Avoid swimming, hot tubs, and pools for 2 to 4 weeks.
- Medical Follow-Up: Follow your doctor’s instructions and attend all scheduled check-ups.
TransPRK
The indications for TransPRK (Photo-Refractive Keratectomy) include the treatment of myopia, hyperopia, and astigmatism. It is especially beneficial for patients with thin corneas or who participate in contact sports, as it does not create a corneal flap. Ideal candidates are over 21 years of age, with stable vision for at least two years, and without significant prior eye conditions.Ideal Candidates
- Patients with myopia, hyperopia, and/or astigmatism.
- People with thin corneas who are not suitable for LASIK.
- Athletes or people with high-risk jobs who may suffer eye injuries.
- Patients with prescriptions generally below seven diopters, although there are exceptions, as Miranza explains on YouTube.
Exclusion Criteria
- Previous eye conditions or surgeries, such as prior refractive surgery, corneal transplant, glaucoma, cataracts, corneal ectasia, among others.
- Patients under 21 years of age. Unstable vision for the past two years.
Additional Considerations
- It is a surface technique that removes the epithelium (outer layer of the cornea) and reshapes the stroma with a laser in a single step.
- By not creating a flap, it reduces the risk of complications in active patients and decreases the risk of dry eye compared to LASIK.
- The postoperative period may be more uncomfortable than with other techniques, with discomfort and blurred vision during the first few days, but visual recovery is gradual.