Details Make The Difference.

2day Lasek

Refractive Vision Correction Surgery

Pioneer of 2day LASEK

2day LASEK was researched, developed, and introduced in 2011 by the medical team at Gangnam EOS Eye Center.

EOS Eye Center publicly discloses detailed surgical outcome data as part of its commitment to transparency.

Since the start of official data tracking in 2016, more than 52,000 cases have been recorded in which the protective contact lens was removed approximately two days after surgery, based on predefined clinical criteria.

2day LASEK is a surgical approach developed and refined at EOS Eye Center based on its clinical experience and research.

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Why 2day LASEK stands out —

Designed for Efficient Recovery and Surgical Safety.

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By precisely ablating only the necessary corneal tissue—while minimizing mechanical and chemical impact—this approach is designed to support efficient recovery and reduce postoperative discomfort in appropriate cases.

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By avoiding the formation of an unnecessary stromal interface, the procedure aims to preserve residual stromal tissue, which may contribute to postoperative biomechanical stability.

A Comparative Overview of 2day LASEK vs. Standard LASEK

Ophthalmology Professional Version.

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Pioneered and developed by EOS Eye Center.

15 Years of Continuous Clinical Research on 2day LASEK.

2day Lasek History

With a fast return to daily life and excellent dry eye prevention

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Recovery completed in approximately 1.5 days

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Significant improvement in night-vision glare symptoms

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Reduced corneal epithelial irritation and postoperative inflammation

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Near-zero deviation in stromal tissue ablation volume achieved

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Functional visual recovery within 2 days

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2025 ESCRS (European Society Of Cataract & Refractive Surgeons)
Ablation Accuracy of Combined 2day LASEK and Xtra Treatment for Extreme Myopia 2024 2day LASEK for Extreme High Myopia Beyond −10.00 Diopters
With individually optimized treatment nomograms 2024 ASCRS (American Society of Cataract and Refractive Surgery)
Clinical results of correction of high astigmatism over -3D using 2day LASEK 2024 Korean Ophthalmological society congress
Changes in Higher Order Aberrations after 2day LASEK
Analysis of Factors Affecting Corneal Epithelial Recovery Rate in 2day LASEK 2023 Korean Ophthalmological society congress
Long-Term Visual and Refractive Stability After Bilateral 2day LASEK With Unilateral Xtra
Treatment Efficacy and Visual Stability of 2day LASEK for Recurrent Corneal Erosion
Efficacy of Topical Ultra-Rapid-Acting Insulin in Promoting Corneal Epithelial Healing After 2day LASEK 2022 Extreme Myopia Ablation Accuracy Study
Customized correction parameters based on the severity of myopia 2022 Korean Ophthalmological society congress
A new method that accelerates epithelial recovery after 2day LASEK
Efficacy and Visual Stability of 2day LASEK Using the AMARIS 1050RS Excimer Laser for Recurrent Corneal Erosion 2021 Korean Ophthalmological society congress
Comparison of Postoperative Convenience and Clinical Results with or Without Accelerated Crosslinking in 2day LASEK
The Safety and Efficacy of 2day LASEK in extreme high myopia(>-8Diopter) : results from a 6 months follow-up study 2018 Korean Ophthalmological society congress
Predicted Versus Actual Ablation Depth After 2day LASEK With Precise Epithelial Thickness–Based Ablation in Eyes With Extreme Myopia 2017 Korean Ophthalmological society congress
Extreme Myopia Beyond −8.00 D. Development of a corneal tissue-saving ablation system

EOS Eye Center pioneered the development of 2day LASEK in 2011 and has continuously refined the technique through clinical research and algorithm optimization. This ongoing evolution has resulted in a patient-specific 2day LASEK system designed to deliver precise, individualized treatments and optimal visual outcomes.

Two days? Now faster.

Average functional recovery in approximately 1.5 days.

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2day LASEK Booster is an EOS-developed postoperative protocol designed to accelerate corneal epithelial healing and reduce postoperative inflammation.
This protocol supports faster functional recovery and contributes to improved postoperative ocular surface stability.

Postoperative Day 1 — Standard 2day LASEK (without Booster Protocol)

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Postoperative Day 1 — 2day LASEK with EOS Booster Protocol

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Wider Optical Zone

Clearer Vision at Night

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2day LASEK Wide features an expanded optical zone compared with standard 2day LASEK.
By enlarging the treatment zone, it significantly reduces the risk of night glare and halos—particularly in patients with large pupils (≥ 8.0 mm).
Despite the wider ablation zone, recovery remains just as fast thanks to the integrated Booster protocol.

Recommended Candidates 1

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Patients with large pupils (≥ 8.0 mm)

Recommended Candidates 2

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Patients concerned about night glare or halos after LASEK

Ultra-High Myopia (≥ –8.00 D)

Safe correction with preserved corneal integrity

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2day LASEK ZERO applies a zero-error algorithm that minimizes unnecessary ablation while accurately matching predicted and actual ablation depth.

This approach preserves more corneal tissue and enables stable, reliable outcomes—even in patients with ultra-high myopia over –8.00 D.

Standard Lasek

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2day Lasek ZERO

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4-Step Safety System for 2day LASEK

Developed by EOS Eye Center

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Outstanding Research Achievements of EOS Eye Center’s 2day LASEK

16 Consecutive Years of Presenting 2day LASEK Research Findings

The first and only clinic in Korea to perform over 52,000 cases of 2day LASEK.

52,000 cases

A trusted ophthalmology center for medical professionals, with over 2,400 refractive surgeries performed for physicians, medical students, nurses, and other healthcare professionals.

2,400 surgeries

Equipped with two state-of-the-art AMARIS Red excimer laser systems and officially designated as a clinical research center.

Designated Clinical Research Center