The use of femtosecond lasers has created an evolution in modern corneal and refractive surgery. With accuracy, safety, and repeatability, eye surgeons can utilize the femtosecond laser in almost all anterior refractive procedures; laser in situ keratomileusis (LASIK), small incision lenticule extraction (SMILE), penetrating keratoplasty (PKP), insertion of intracorneal ring segments, anterior and posterior lamellar keratoplasty (Deep anterior lamellar keratoplasty (DALK) and Descemet's stripping endothelial keratoplasty (DSEK)), insertion of corneal inlays and cataract surgery. As the technology matures, it will push surgical limits and open new avenues for ophthalmic intervention in areas not yet explored. As we witness the transition from femto-LASIK to femto-cataract surgery it becomes obvious that this innovation is here to stay. This article presents some of the most relevant advances of femtosecond lasers to modern corneal and refractive surgery.
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http://dx.doi.org/10.1186/s40662-015-0022-6 | DOI Listing |
Cureus
December 2024
Department of Ophthalmology, The University of Jordan, Amman, JOR.
We present the case of a 23-year-old male who experienced vision loss in his left eye 15 months after undergoing bilateral transepithelial photorefractive keratectomy (T-PRK). Despite the absence of any significant preoperative topographical risk factors in either eye, corneal ectasia was later confirmed in the left eye, while the right eye remained normal. Subtle asymmetry in topometric indices and a borderline high Index of vertical asymmetry (IVA) reading suggested the possibility of early subclinical keratoconus, potentially increasing the risk of post-refractive ectasia.
View Article and Find Full Text PDFJ Ophthalmol
January 2025
Pediatric Ophthalmology, Shanxi Aier Eye Hospital, Aier Eye Hospital Group, Changsha, China.
To investigate the correlation between corneal biomechanical characteristics and refractive status in adolescents aged 5-13 years. A cross-sectional study involved 339 children aged 5-13 with a spherical equivalent (SE) range from -6.00 to +2.
View Article and Find Full Text PDFQuant Imaging Med Surg
January 2025
Aier Institute of Refractive Surgery, Refractive Surgery Center, Guangzhou Aier Eye Hospital, Guangzhou, China.
Background: Whether the correlations between anterior and posterior corneal parameters vary according to different conditions is unknown. We aimed to investigate the anterior-to-posterior correlations of corneal parameters according to different refractive status and anterior segment dimension.
Methods: A total of 8,365 myopic eyes undergoing refractive surgery between 2017 and 2019 from multiple ophthalmic centers were consecutively included in the study.
BMC Ophthalmol
January 2025
Department of Ophthalmology, Peking University Third Hospital, 49 North Garden Rd., Haidian District, Beijing, China.
Background: This study aims to comprehensively evaluate the predictive accuracy of six widely used toric intraocular lens (IOL) calculators in eyes undergoing cataract surgery with toric IOL implantation.
Methods: This retrospective study reviewed 53 eyes of 53 patients that underwent cataract extraction with toric IOL implantation using Zeiss 709 M. Six toric IOL calculators were evaluated: Barrett toric calculator (with predicted PCA, measured PCA, and TK), Kane formula (predicted PCA), and EVO 2.
Cornea
January 2025
SCHWIND eye-tech-solutions, Kleinostheim, Germany.
Purpose: To evaluate postoperative visual outcomes on postoperative day 1 (POD1) after lenticule extraction in myopia astigmatism in a large cohort of over 1350 consecutive treatments.
Methods: A retrospective review chart identified 1357 eyes consecutively treated with SCHWIND ATOS using lenticule extraction for myopic astigmatism who had at least 6 months of follow-up completed and for which POD1 was completely recorded. The standard visual and refractive outcomes, and astigmatism outcomes, were analyzed on POD1.
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