What are the differences and selection methods between the representative vision correction surgeries, LASIK and LASEK?
Two Representative Methods of Vision Correction
The most widely known methods for solving refractive errors are LASIK and LASEK. However, not many people know the exact differences between these two procedures. Let’s examine in detail the concepts, characteristics, and differences between LASIK and LASEK.
Principles and Characteristics of LASIK Procedure
LASIK is a method of correcting vision by irradiating laser on the corneal epithelial area to create a corneal flap, then lifting this flap and shooting laser on the stromal layer. Since the lifted corneal flap is covered back to finish, it has the advantages of mild pain and rapid recovery compared to LASEK.
However, it should be kept in mind that corneal flap formation is essential, so the procedure is only possible if corneal thickness is sufficient, and special care must be taken against external impacts immediately after the procedure. During the process of creating the flap, relatively many corneal nerves are cut, which can cause dry eye syndrome, and the flap may not be completely attached, making it vulnerable to external impacts in the long term.
Mechanism and Advantages of LASEK Procedure
LASEK is a method of improving vision by removing the corneal epithelial layer without creating a corneal flap, then irradiating laser on the stromal layer. Since only the epithelial layer is removed, there is more remaining corneal thickness than LASIK, and it has the advantage of being relatively strong against external impacts.
Conversely, it should be noted that pain is accompanied compared to LASIK, and meticulous care is required until the corneal epithelium regrows. The period required for corneal epithelium regeneration is approximately 5 days, during which protective lenses must be worn and life must be conducted carefully. Although the recovery period is long, the stability of the corneal structure is high, making it safe for vigorous activities.
Key Summary of LASIK vs LASEK Differences
LASIK has minimal pain and fast recovery, with vision returning the day after the procedure, but is characterized by vulnerability to external impacts. On the other hand, LASEK may have more pain than LASIK but is a procedure that is solid against external shocks.
LASIK has a structure that opens and closes by forming a flap, so the procedure time is short and recovery is rapid, but the flap exists permanently, posing a risk of displacement in case of external impact. LASEK completely removes the epithelium, so the recovery period is long, but the corneal structure is maintained solidly and is strong against external impacts.
Additionally, there is also a LASIK vs LASEK difference in that LASIK has a wider incision range, which can cause more dry eye, and LASEK can have more severe pain and foreign body sensation during recovery. It is important to understand these differences and choose considering your lifestyle and occupational characteristics.
Criteria for Selecting Personalized Surgical Method
The appropriate procedure varies depending on what lifestyle pattern you maintain daily and what leisure activities you enjoy. Since the feasibility of the procedure changes according to eye condition, it is good to understand the characteristics of each procedure and then visit an ophthalmology clinic for a precise examination.
LASEK may be more appropriate if you enjoy vigorous sports such as martial arts, ball sports, or hiking, or have occupations with frequent physical contact such as firefighters or police officers. On the other hand, LASIK may be suitable for office workers or students who need a quick return to daily life and have a low risk of external impact.
LASEK is advantageous when corneal thickness is insufficient, and LASEK may be better even when dry eye syndrome is severe. LASIK can be considered if you are sensitive to pain or need rapid recovery urgently.
Importance of Precise Examination
Various factors such as corneal thickness, corneal shape, pupil diameter, intraocular pressure, and tear secretion should be comprehensively evaluated to determine procedure feasibility and appropriate method. Generally, medical institutions that conduct more than 40 types of precise examinations are reliable.
Depending on the examination results, LASIK may be appropriate in some cases, LASEK may be appropriate in other cases, and depending on the situation, other methods such as SMILE LASIK may be more suitable. Even if you understand the LASIK vs LASEK differences, the final decision should be made in consultation with medical staff based on precise examination results.
Since this is a matter of eye health that will be used for a lifetime, rather than consulting only one or two places and making an immediate decision, a process of visiting at least 3-4 places and comparing is necessary. Even if it takes time and effort, choosing after sufficient research is the way to avoid regrets later.
Reviews from patients who have actually undergone the procedure are also worth referring to, and it is good to look for honest experiences on Naver blogs or various online communities, not just reading articles on medical institution websites. In particular, posts mentioning side effects or inconveniences are often more practically helpful.
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