Comparison of corneal shape changes and aberrations induced By FS-LASIK and SMILE for myopia

Journal of Refractive Surgery
Anders GyldenkerneJesper Ø Hjortdal

Abstract

To compare corneal curvatures, corneal power calculations, and higher-order aberrations (HOAs) of femtosecond laser-assisted LASIK (FS-LASIK) with small incision lenticule extraction (SMILE) following surgery for moderate to high myopia. A retrospective study of 736 eyes of 368 patients treated with SMILE and 148 eyes of 74 patients treated with FS-LASIK. Preoperative mean spherical equivalent was -7.3 ± 1.5 diopters in the SMILE group and -7.6 ± 1.3 diopters in the FS-LASIK group. Corneal curvatures, corneal power calculations performed by ray tracing, and HOAs measured with Scheimpflug technology before and 3 months after surgery were analyzed. Corneal curvatures changed significantly in the anterior corneal surface, but not in the posterior corneal surface, in both groups; after SMILE, the sagittal curvature was constant for the central 4-mm diameter, in contrast to FS-LASIK where the curvature showed a gradual steepening with increasing diameter. Corneal power calculations were different across the cornea depending on the measurement diameter between the two groups postoperatively. Measured over a 5-mm zone on the total cornea, FS-LASIK induced 0.11 µm more coma (P < .001) and 0.13 µm higher spherical aberration (P < .001) ...Continue Reading

References

Feb 7, 2006·American Journal of Ophthalmology·Marcelo V NettoSteven E Wilson
Aug 26, 2006·Journal of Cataract and Refractive Surgery·Joseph B Ciolino, Michael W Belin
Aug 30, 2008·Journal of Cataract and Refractive Surgery·Walter SekundoMarcus Blum
Apr 24, 2009·Investigative Ophthalmology & Visual Science·Alfonso Pérez-EscuderoSusana Marcos
Feb 5, 2010·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Marcus BlumWalter Sekundo
Dec 25, 2010·Journal of Cataract and Refractive Surgery·Rupal ShahSayantan Sengupta
Mar 1, 2012·Journal of Refractive Surgery·David SmadjaRonald R Krueger
Dec 6, 2012·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Jana GertnereWalter Sekundo
Feb 1, 2014·Journal of Cataract and Refractive Surgery·Anders H VestergaardJesper Ø Hjortdal
Apr 8, 2014·Journal of Refractive Surgery·Fangyu LinYabo Yang
May 27, 2014·Journal of Cataract and Refractive Surgery·Abhijit Sinha RoyCynthia J Roberts

❮ Previous
Next ❯

Citations

Oct 8, 2015·Journal of Refractive Surgery·Iben Bach PedersenJesper Hjortdal
Mar 12, 2020·Journal of Refractive Surgery·Jakob SiedleckiNikolaus Luft
Sep 2, 2018·International Ophthalmology·Lin ZhangTong Cui
Jun 20, 2015·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Xiaojing LiRui Dou
May 10, 2017·Journal of Refractive Surgery·Mounir A KhalifaDavid P Piñero
Sep 11, 2018·Journal of Refractive Surgery·Dan Z ReinsteinRyan S Vida
Jun 23, 2020·Journal of Cataract and Refractive Surgery·Jia-Hao ZhangYan Zhang
Sep 16, 2020·Journal of Cataract and Refractive Surgery·Apostolos LazaridisWalter Sekundo
May 27, 2021·Journal of Refractive Surgery·Jinglu YingFei Pan
Mar 27, 2021·Journal of Cataract and Refractive Surgery·Roman LischkeNikolaus Luft

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.