Academic literature on the topic 'Cornea Keratoconus. LASIK (Eye surgery)'

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Journal articles on the topic "Cornea Keratoconus. LASIK (Eye surgery)"

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Abdolahian, Milad, Mohammad Ali Moalem, Mohammadreza Jahady Hoseiny, Farsad Noorizadeh, and Athar Zareei. "Keratorefractive Surgery Outcomes in Keratoconus Suspect Patients." Journal of Ophthalmology 2020 (December 2, 2020): 1–11. http://dx.doi.org/10.1155/2020/8823744.

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Purpose. To examine the outcomes of keratorefractive surgeries in keratoconus suspect patients. Methods. This study included 192 keratoconus suspects (351 eyes), treated with photorefractive keratectomy (PRK) (211 eyes), Lasik (96 eyes), and Femto-Lasik (44 eyes) surgeries in an eye clinic. The best spectacle-corrected visual acuity (BSCVA) and subjective refraction were evaluated preoperatively and postoperatively (three months and five years after the procedure). The Orbscan II topography system was also used preoperatively and five years after the procedure. Results. The patients’ mean age
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Tatar, Mehmet Gurkan, Feride Aylin Kantarci, Aydin Yildirim, et al. "Risk Factors in Post-LASIK Corneal Ectasia." Journal of Ophthalmology 2014 (2014): 1–4. http://dx.doi.org/10.1155/2014/204191.

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Purpose. To evaluate the risk factors for post-laser in situ keratomileusis (LASIK) ectasia.Materials and Methods. Medical records of 42 eyes of 28 (10 women, 18 men) patients who developed corneal ectasia after LASIK were retrospectively reviewed. Topographical features and surgical parameters of those patients were evaluated.Results. The mean age of patients was34.73±6.50(23–48) years and the mean interval from LASIK to the diagnosis of post-LASIK ectasia was36.0±16.92(12–60) months. The following factors were determined as a risk factors: deep ablation (>75 μm) in 10 eyes, FFK (forme fru
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Valbon, Bruno Freitas, Juliana Glicéria, Rodrigo Santos, and Milton Ruiz Alves. "Unilateral Corneal Ectasia after Bilateral LASIK: The Thick Flap Counts." International Journal of Keratoconus and Ectatic Corneal Diseases 2, no. 2 (2013): 79–83. http://dx.doi.org/10.5005/jp-journals-10025-1056.

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ABSTRACT Purpose To report a case of post-LASIK corneal ectasia due to a thick flap, while the contralateral eye did not develop ectasia after an incomplete deep flap cut, followed by a thinner flap LASIK procedure. Methods Case report Results This 45 years old female patient had bilateral myopic LASIK in 1999. Preoperative anterior curvature map was regular with no signs of keratoconus. Central keratometry was 42.88 × 44.70 @ 163 in OD and 43.43 × 45.24 @ 175 in OS. Ultrasound central corneal thickness was 586 μm and 619 μm in the right eye and left eye, respectively. Corneal OCT identified a
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Surkova, V. K., A. R. Khalimov, and G. M. Kazakbaeva. "Keratectasias and modern methods of their treatment." POINT OF VIEW. EAST – WEST, no. 2 (May 31, 2021): 84–88. http://dx.doi.org/10.25276/2410-1257-2021-2-84-88.

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The review article provides non-surgical (spectacle and contact correction, ultraviolet corneal crosslinking) and surgical methods (corneal transplantation, intrastromal implantation of segments and rings) for the treatment of keratoectasias and, in particular, keratoconus. The authors present their own original developments of scientists from the Ufa Research Institute of Eye Diseases in the field of cross-linking and various types of keratoplasty, as well as promising areas of clinical research on the combined treatment of keratectasias: cross-linking in combination with LASIK, intrastromal
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Hayes, Sally, Siân R. Morgan, and Keith M. Meek. "Keratoconus: cross-linking the window of the eye." Therapeutic Advances in Rare Disease 2 (January 2021): 263300402110035. http://dx.doi.org/10.1177/26330040211003573.

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Keratoconus is a condition in which the cornea progressively thins and weakens, leading to severe, irregular astigmatism and a significant reduction in quality of life. Although the precise cause of keratoconus is still not known, biochemical and structural studies indicate that overactive enzymes within the cornea break down the constituent proteins (collagen and proteoglycans) and cause the tissue to weaken. As the disease develops, collagen fibres slip past each other and are redistributed across the cornea, causing it to change shape. In recent years, it was discovered that the photochemic
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Song, Yinyu, Lihua Fang, Ruirui Du, Luchao Lin, and Xingming Tao. "The corneal biomechanical changes after SMILE and LASIK refractive surgery were compared based on finite element analysis." E3S Web of Conferences 271 (2021): 03045. http://dx.doi.org/10.1051/e3sconf/202127103045.

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The three-dimensional (3D) finite element model of human eye was established, and the intraocular pressure (IOP) was loaded to simulate refractive surgery. The biomechanical properties of human cornea after SMILE and LASIK surgery were studied from the stress, strain and induced wavefront aberration. Our results showed that SMILE had less impact on the biomechanics, having less stress and strain changes than LASIK. However, the stress and strain of the cornea increased with the increase of the diopter and were concentrated in the central region. We also investigated the changes in wavefront ab
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Hefner-Shahar, Hagar, and Nir Erdinest. "High-order Aberrations in Keratoconus." International Journal of Keratoconus and Ectatic Corneal Diseases 5, no. 3 (2016): 128–31. http://dx.doi.org/10.5005/jp-journals-10025-1133.

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ABSTRACT With all the technological advances today and the increasing number of people undergoing refractive surgery, the importance of detecting keratoconus (KC) prior to surgery has become evident. Although by using a topographer we can detect early stage KC, however, by using wavefront analysis technology, we are able to detect KC at an even earlier stage. Every eye possesses a number of aberrations. However, in a KC patient's eye, there are approximately five to six times the numbers of high-order aberrations (HOAs) than in a healthy eye. Using this technology to detect and assess the HOAs
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Shilova, T. Yu. "ReLEx® SMILE® – the third generation of laser eye surgery." EYE GLAZ 22, no. 4(132) (2020): 52–58. http://dx.doi.org/10.33791/2222-4408-2020-4-52-58.

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ReLEx® (Refractive lenticule extraction) SMILE® (SMall Incision Lenticula Extraction) is the third generation of laser eye surgery, which is a follow-on to PRK (the first generation) and LASIK (the second generation). This technology has expanded the possibilities for the comfort and safety of the procedure, reduced the requirements for the thickness of the cornea, and made it extremely comfortable for the patient. SMILE® method helps improve vision in case of myopia, myopic and mixed astigmatism. The article analyzes the advantages and disadvantages of this technology, its possible risks and
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Panova, I. E., A. V. Titov, and D. R. Mirsaitova. "Tear Replacement Therapy in Medical Support of Patients after Femto-LASIK Keratorefractive Surgery." Ophthalmology in Russia 17, no. 2 (2020): 274–80. http://dx.doi.org/10.18008/1816-5095-2020-2-274-280.

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Purpose — to analyze the effectiveness of artificial tear drops HYLOPARIN-COMOD® in the complex medical support of the FemtoLASIK operation based on monitoring of clinical, functional and morphometric indicators of the eye surface’s condition. Patients and methods. The study included 25 patients (50 eyes) who underwent a keratorefractive surgery (Femto-LASIK) and were prescribed instillations of artificial tear drops HILOPARIN-COMOD®. To analyze the effectiveness of artificial tear drops HYLOPARIN-COMOD® in the complex medical support of the Femto-LASIK operation based on monitoring of clinica
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Crouzier, David, Vincent Dabouis, Edgar Gentilhomme, et al. "Chronic Electromagnetic Exposure at Occupational Safety Level Does Not Affect the Metabolic Profile nor Cornea Healing after LASIK Surgery." Journal of Ophthalmology 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/762364.

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LASIK eye surgery has become a very common practice for myopic people, especially those in the military. Sometimes undertaken by people who need to keep a specific medical aptitude, this surgery could be performed in secret from the hierarchy and from the institute medical staff. However, even though the eyes have been previously described as one of the most sensitive organs to electromagnetic fields in the human body, no data exist on the potential deleterious effects of electromagnetic fields on the healing eye. The consequences of chronic long-lasting radar exposures at power density, in ac
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Dissertations / Theses on the topic "Cornea Keratoconus. LASIK (Eye surgery)"

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Tang, Maolong. "Corneal mean curvature mapping application in laser refractive surgery /." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1094593446.

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Lam, Wing-wah Phoebe. "A systematic review of postoperative treatments for laser eye surgery." Hong Kong : University of Hong Kong, 2002. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25549686.

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Goggin, Michael Joseph. "Outcome and complications of photorefractive keratectomy for myopia and astigmatism /." Title page, table of contents and aims only, 2003. http://web4.library.adelaide.edu.au/theses/09MS/09msg613.pdf.

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林穎華 and Wing-wah Phoebe Lam. "A systematic review of postoperative treatments for laser eye surgery." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31970643.

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Books on the topic "Cornea Keratoconus. LASIK (Eye surgery)"

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LASIK: The evolution of refractive surgery. SLACK, 2012.

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Grandon, Stanley C. The complete guide to refractive surgery. 2nd ed. Patton Pub. Co., 1999.

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Rapuano, Christopher J. Refractive surgery. 2nd ed. American Academy of Ophthalmology, 2011.

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Gimbel, Howard V. LASIK complications: Prevention and management. SLACK, 1999.

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1953-, Slade Stephen, ed. PRK: Past, present, and future. SLACK, 2012.

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(Editor), Shashi Kapoor, Ionnis G. Pallikaris (Editor), and Srinivas K. Rao (Editor), eds. Lasik Surgery: Tips And Tricks. Anshan Publishers, 2007.

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1953-, Belville J. Kevin, and Smith Ron J. 1963-, eds. LASIK techniques: Pearls and pitfalls. Slack, 2004.

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LASIK Techniques: Pearls and Pitfalls. Slack Incorporated, 2003.

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1961-, Machat Jeffery J., Slade Stephen 1953-, and Probst Louis E, eds. The art of LASIK. 2nd ed. SLACK, Inc., 1999.

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Mini Atlas of Lasik Surgery (Anshan Gold Standard Mini Atlas). Anshan Pub, 2008.

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Book chapters on the topic "Cornea Keratoconus. LASIK (Eye surgery)"

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Rojas Alvarez, Eduardo. "Cornea Confocal Microscopy: Utilities and Perspectives." In Biomedical Signal and Image Processing. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96272.

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The cornea is the ocular refractive medium with the greatest refractive power of the eye. The study of it is of vital importance for the diagnosis and follow-up of ophthalmological diseases with the aim of achieving high standards of visual acuity in our patients. Confocal microscopy of the cornea allows in-depth study of it, quickly, safely, painlessly, obtaining high-resolution images of the corneal sublayers. This chapter summarizes the procedure for performing corneal confocal microscopy, the normal characteristics of the tissue with real images of our patients, as well as a brief explanation of the main applications of this technology in the study of corneal dystrophies (keratoconus), in refractive surgery, corneal transplantation, infectious keratitis, glaucoma filtration bulla, among other topics.
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Conference papers on the topic "Cornea Keratoconus. LASIK (Eye surgery)"

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Pinsky, Peter M., and Dolf van der Heide. "Modeling the Optical Performance of the Human Cornea Following Refractive Surgery." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192579.

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Disturbances of the stromal microstructure occurring in refractive surgical procedures may create unexpected and undesired changes to the vision quality of the eye. Examples of common procedures which can profoundly alter the integrity of the stroma include laser ablation techniques such as Laser in situ keratomileusis (LASIK) for treating myopia, hyperopia and astigmatism, scleral incisions for lens extraction in cataract surgery and conducting keratoplasty (CK) for the treatment of hyperopia and presbyopia. The stroma is the primary load-carrying layer of the cornea and in the normal eye it
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Kushwaha, Sandeep Singh, and P. S. Ghoshdastidar. "Numerical Prediction of the Temperature Distribution Within a Human Eye During Laser Surgery." In ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/ht2008-56259.

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In this paper a computational heat transfer model for prediction of the temperature distribution within the human eye during laser surgery is presented. The heat transfer within a tissue is described by the classic Pennes bioheat transfer equation. The intraocular temperature distribution is calculated using finite-difference method. Two types of computational domain have been considered: (i) rectangular parallelepiped and (ii) cylindrical. The eye is modeled as a composite layered structure consisting of four different ocular tissues, namely, cornea, aqueous, lens and vitreous. It is assumed
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