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Factors Predicting the Need for Retreatment After Laser Refractive Surgery
Michael Mimouni1, Igor Vainer, Yinon Shapira
1*Department of Ophthalmology, Rambam Health Care Campus, Haifa, Israel;†Department of Ophthalmology, Barzilai Medical Center, Ashkelon and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheba, Israel; and‡Care-Vision Laser Centers, Tel-Aviv, Israel.
Older age, astigmatism, hyperopia, and colder temperatures increase the need for refractive surgery retreatment. Surgeon experience also impacts retreatment rates, highlighting areas for nomogram improvement.
Area of Science:
- Ophthalmology
- Refractive Surgery Outcomes
Background:
- Refractive surgery aims to correct vision but may require retreatment in some cases.
- Identifying risk factors for retreatment is crucial for improving surgical outcomes and patient satisfaction.
Purpose of the Study:
- To identify potential risk factors associated with the need for retreatment after refractive surgery.
- To analyze factors influencing retreatment rates in laser in situ keratomileusis and photorefractive keratectomy.
Main Methods:
- Retrospective analysis of 41,504 eyes undergoing refractive surgery (2005-2012).
- Patients were categorized based on whether they received retreatment.
- Logistic regression analysis was used to determine significant risk factors.
Main Results:
- Retreatment rates significantly decreased from 4.52% in 2005 to 0.18% in 2012.
- Factors associated with higher retreatment likelihood included older age, higher myopia, astigmatism, hyperopia, and PRK over LASIK.
- Intraoperative factors like lower temperature and higher humidity, along with surgeon experience, were also significant.
Conclusions:
- Older age, higher astigmatism and hyperopia, colder OR temperatures, and less surgeon experience are key predictors for refractive retreatment.
- These identified factors can inform nomogram adjustments to minimize future retreatment needs.
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