Visumax femtosecond laser (Carl Zeiss Meditec AG, Jena, Germany) was used to create superior hinged flaps with a thickness of 100–120 µm, flap diameter of 7.5–8.0 mm, optical zone between 6 and 7 mm, and a transition zone of 8.2 mm. The ablation was performed using an MEL 90 excimer laser (Carl Zeiss Meditec AG) with iris-recognition software using the iris pattern image taken preoperatively with a wavefront aberration-supported corneal ablation analyzer (Carl Zeiss Meditec AG). A standard profile ablation (non-wavefront) was used to correct sphere and refractive cylinder with the aim of achieving emmetropia. An active eye tracker was used to ensure accurate ablation on the center of the pupil. Mean optical zone used was 6.3±0.21 mm.
Mel 90 excimer laser
Manufactured by Zeiss
Sourced in Germany
The MEL 90 excimer laser is a medical device designed for precision eye surgery. It emits high-energy ultraviolet light pulses that can precisely remove microscopic layers of corneal tissue. The laser's core function is to reshape the cornea, improving its refractive properties and correcting vision problems such as myopia, hyperopia, and astigmatism.
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Lab products found in correlation
3 protocols using mel 90 excimer laser
1
Femtosecond Laser-Assisted LASIK Procedure
2
Photorefractive Keratectomy with MMC
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Local anesthesia was achieved with topical proparacaine hydrochloride 0.5% solution drops (Alcane; Alcon, Fort Worth, TX). The surgeon removed the epithelium using a blunt spatula (K2–3700; Katena Products, Inc., Denville, NJ). Laser ablation was conducted with the Mel 90 excimer laser (Carl Zeiss Meditec, Jena, Germany, Triple-A profile). A sponge soaked in mitomycin-C (MMC) 0.02% was applied on the stromal bed for 10 s followed by balanced sterile solution irrigation and bandaging with a contact lens (Acuvue Oasys, Johnson & Johnson Vision Care, Inc., Jacksonville, FL). The target refraction was plano for all patients.
3
Aspheric Laser Vision Correction
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The CRS-Master system (Carl Zeiss Meditec AG) was used to generate the aspheric ablation profile using the spherical aberration data obtained by the Osiris aberrometer, and all surgical procedures were performed by an experienced refractive surgeon (AR) using the VisuMax femtosecond laser and MEL 90 excimer laser (both Carl Zeiss Meditec AG). Flaps were created with the VisuMax femtosecond laser set to 100-µm thickness with an 8.2mm diameter; an optical zone of 6 mm was used for myopic treatments and 6.5 mm was used for hyperopic treatments. The transition zone was fixed at 2.2 mm for all treatments.
Patients were instructed to wear plastic shields while sleeping for 7 nights. Netilmicin and dexamethasone (Netildex; Sifi SPAy) and moxifloxacin (Vigamox; Alcon Laboratories, Inc) were applied four times daily for the first week, which is our standard protocol for broad-spectrum prophylaxis.
Patients were instructed to wear plastic shields while sleeping for 7 nights. Netilmicin and dexamethasone (Netildex; Sifi SPAy) and moxifloxacin (Vigamox; Alcon Laboratories, Inc) were applied four times daily for the first week, which is our standard protocol for broad-spectrum prophylaxis.
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