Comparing a new hydroexpression technique with conventional forceps method for SMILE lenticule removal.

Area of Science:

• Ophthalmology
• Surgical Techniques
• Refractive Surgery

Background:

• Small-incision lenticule extraction (SMILE) is a popular refractive surgery procedure.
• Lenticule removal is a critical step in SMILE surgery.
• Conventional methods for lenticule removal include the use of forceps.

Purpose of the Study:

• To describe a modified hydroexpression technique for lenticule removal during SMILE surgery.
• To compare the outcomes of the hydroexpression technique with the conventional forceps method.

Main Methods:

• A retrospective, comparative study involving 50 patients undergoing SMILE surgery.
• Comparison of 1-week and 3-month postoperative results between hydroexpression and forceps techniques.
• Evaluation of uncorrected and corrected distance visual acuity, refractive accuracy, safety, and efficacy indices.

Main Results:

• Both techniques demonstrated comparable safety and efficacy indices at 1 week and 3 months postoperatively.
• Refractive accuracy was similar, with a high percentage of eyes achieving spherical equivalent refraction within ±0.50 D for both groups.
• The hydroexpression technique showed no statistically significant difference in outcomes compared to the forceps method.

Conclusions:

• The modified hydroexpression technique is a simple and safe alternative for lenticule removal in SMILE surgery.
• It yields early results comparable to the conventional forceps technique.
• This method is particularly advantageous for cases with lenticule adhesions, thin lenticules, and for surgeons new to SMILE procedures.