Academic literature on the topic 'Intraocular lens (IOL)'

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Journal articles on the topic "Intraocular lens (IOL)"

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El-Khayat, Abdul R. "Optimizing the intraocular lens formula constant according to intraocular lens diameter." International Journal of Ophthalmology 14, no. 5 (2021): 700–703. http://dx.doi.org/10.18240/ijo.2021.05.09.

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AIM: To determine whether the different diameters of a specific intraocular lens (IOL) have significantly different optimized SRK/T A constants and whether these new A constants can improve refractive outcomes. METHODS: Data were collected prospectively from Jan. 2011 to Dec. 2012 on all patients undergoing routine cataract surgery at a district general hospital in the UK. Patients were divided into three groups according to the size of the Akreos AO MI60 IOL used. A constants for the SRK/T formula were optimized according to the size of the IOL. These optimized A constants were then used to s
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Chan, Chin Sern, Szu May Chua, Siti Zakiah Md Khair, Nor Fadzillah Abdul Jalil, Raja Norliza Raja Omar, and Othmaliza Othman. "Iris-claw intraocular lens, scleral-fixated intraocular lens, and angle-supported anterior chamber intraocular lens in Hospital Melaka: a four-year retrospective analysis." Malaysian Journal of Ophthalmology 2, no. 2 (2020): 83–95. http://dx.doi.org/10.35119/myjo.v2i2.71.

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Introduction: Cataract surgery with insufficient capsular support has become an intense challenge to surgeons in intraocular lens (IOL) selection. Anterior chamber IOL (ACIOL), iris-claw (Artisan) IOL, and scleral-fixated IOL (SFIOL) are the three common types of IOL used. However, each type of IOL has its own characteristics and different clinical requirements. IOL selection is important in ensuring good visual outcome.
 Purpose: The purpose is to compare the duration or surgery, visual outcomes, and complications among ACIOL, Artisan IOL, and SFIOL.
 Study design: Retrospective com
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Mano, Yuko, Kei Mizobuchi, Tomoyuki Watanabe, Akira Watanabe, and Tadashi Nakano. "Minimally Invasive Surgery for Intraocular Lens Removal and Intrascleral Intraocular Lens Fixation with Trabeculectomy in a Patient with Dislocated Intraocular Lens and Elevated Intraocular Pressure." Case Reports in Ophthalmology 12, no. 2 (2021): 538–42. http://dx.doi.org/10.1159/000511593.

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A 88-year-old female who was being treated for end-stage pseudoexfoliation syndrome was referred to our hospital for treatment of dislocated intraocular lens (IOL) and the elevated intraocular pressure (IOP) and in the right eye (RE). At the first visit to our hospital, best-corrected visual acuity (BCVA) was 0.2 in the RE and 0.02 in the left eye (LE). IOP was 47 mm Hg in the RE and 21 mm Hg in the LE. Slit-lamp examination showed no abnormalities in anterior segments and dislocated IOL in the RE. Fundus photograph showed optic disc pallor in both eyes. We performed the combined therapy of fl
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Egorova, E. V., A. S. Nesterenko, V. V. Chernykh, and L. V. Shcherbakova. "Late intraocular lens dislocation. Retrospective study." Fyodorov journal of ophthalmic surgery, no. 1 (March 20, 2021): 17–21. http://dx.doi.org/10.25276/0235-4160-2021-1-17-21.

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Purpose. To analyze the frequency, terms and risk factors of late IOL dislocation. Material and methods. A retrospective cohort study was conducted based on archival data of 70 787 cases of the senile cataracts phacoemulsifications performed in 2002–2019 years. Statistical processing of the results and Kaplan–Meier analysis were performed using the SPSS 11.0 program (STATA). Results. 320 patients in the study group were treated for late IOL dislocation at various postoperative periods. The average age of the patients was 76.2±12.5 years at the moment of reconstruction procedure. The periods fr
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Osawa, Ryoko, Tetsuro Oshika, Masahiko Sano, Takuma Yuguchi, and Tadayoshi Kaiya. "Rotational stability of modified toric intraocular lens." PLOS ONE 16, no. 3 (2021): e0247844. http://dx.doi.org/10.1371/journal.pone.0247844.

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We evaluated the rotational stability of a new toric intraocular lens (IOL), HOYA XY-1 toric IOL that is an improved version of HOYA 355 toric IOL, with longer overall length (13.0 mm vs. 12.5 mm), shortened unfolding time, and texture processing of the surface of haptics. Data from 193 eyes of 165 patients (76.4 ± 8.3 years old) with preoperative corneal astigmatism exceeding 0.75 diopters who had undergone phacoemulsification and toric IOL implantation were collected and analyzed. Corneal astigmatism, refractive astigmatism, and uncorrected (UDVA) and corrected distance visual acuity (CDVA)
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Simanjuntak, Gilbert W. S. "Reimplantasi Lensa Setelah Komplikasi Operasi Katarak." Kesmas: National Public Health Journal 6, no. 4 (2012): 168. http://dx.doi.org/10.21109/kesmas.v6i4.95.

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Ada keterbatasan laporan implementasi lensa intraokuler sekunder di Indonesia. Penelitian ini bertujuan untuk melaporkan hasil implementasi lensa intraokuler sekunder di Rumah Sakit Communion of Churches in Indonesia (CCI) Cikini, Fakultas Kedokteran Universitas Kristen IndonesiaJakarta. Penelitian dengan sumber data sekunder rekam medis pasien dengan bedah inclusi eventful dengan atau tanpa implementasi lensa dan setiap komplikasi post operasi, termasuk penurunan penglihatan dan inflamasi katarak. Segmen anterior dan posterior diperiksa secara menyeluruh dan dicatat. Sinechiolisis dilakukan 3
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Thanathanee, Onsiri, Tanapat Ratanapakorn, and Olan Suwan-apichon. "Postoperative opacification of polymethylmethacrylateintraocular lens." Asian Biomedicine 4, no. 3 (2010): 457–62. http://dx.doi.org/10.2478/abm-2010-0056.

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Abstract Background: Opacification of ophthalmic devices has been previously reported in silicone scleral buckle, Molteno implant, and intraocular lens opacification. However, there is no report on polymethyl methacrylate (PMMA) intraocular lens (IOL) calcification. Objective: Report the clinical feature, histopathologic and spectrophotometer analysis of opacified three-piece PMMA IOL. Method: A 60-year-old diabetic patient reported decreased visual acuity in her right eye, which had undergone phacoemulsification with PMMA IOL implantation. The ophthalmic examination revealed a white homogeneo
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Haigis, Wolfgang. "Intraocular Lens Calculation After Refractive Surgery." European Ophthalmic Review 06, no. 01 (2012): 21. http://dx.doi.org/10.17925/eor.2012.06.01.21.

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More and more patients who have had corneo-refractive surgery present for intraocular lens (IOL) implantation. IOL calculation in these patients is still a challenge. After refractive surgery, if eyes are treated as normal eyes, high hyperopic errors can occur in previously myopic eyes and moderate myopic errors in formerly hyperopic eyes. Three main sources for these errors can be identified: the radius measurement error, the keratometer index error and the IOL formula error. The literature presents a confusing variety of procedures and formulas to cope with this situation. An analysis of the
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Amon, Michael, and Guenal Kahraman. "Enhancement of Refractive Results after Intraocular Lens Implantation." European Ophthalmic Review 05, no. 01 (2011): 59. http://dx.doi.org/10.17925/eor.2011.05.01.59.

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Summary:An overview on polypseudophakia (‘piggyback’ intraocular lens [IOLs]) is given. Requirements on a sulcus-supported supplementary IOL are defined. Two-year results of a new IOL (Sulcoflex®) are presented and indications for this IOL are defined.Methods:The IOL is especially designed for implantation into the ciliary sulcus in pseudophakic eyes (piggyback). It is a single-piece implant made of hydrophilic acrylic. Optic- and haptic-edges are round. The optic has a diameter of 6.5mm and a concave/convex shape for perfect fit on the anterior convex surface of the primary IOL. The haptic is
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Massa, Horace F., Iona Gobej, Paul Jacquier, Christian Jonescu-Cuypers, and Olivier Le Quoy. "Cystoid macular oedema and iris-fixated intraocular lens treated with intraocular lens exchange: A case series and review." Journal of International Medical Research 47, no. 1 (2018): 188–95. http://dx.doi.org/10.1177/0300060518799004.

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This series of case reports describes six eyes from five patients that underwent intraocular lens (IOL) exchange with scleral-fixated IOLs for cystoid macular oedema associated with iris-fixated IOLs between 2005 and 2015. Macular oedema was assessed using ocular coherence tomography (OCT). The six eyes in this series were treated by IOL removal and implantation of a scleral -sutured IOL with four points of fixation in the sulcus. Visual acuity improved in all six eyes. On OCT, macular oedema resolved after 3 months in all eyes. There were no surgical complications from the IOL exchange. One e
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Dissertations / Theses on the topic "Intraocular lens (IOL)"

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Huang, Yi-Shiang. "Intraocular lenses with surfaces functionalized by biomolecules in relation with lens epithelial cell adhesion." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0464/document.

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L’Opacification Capsulaire Postérieure (OCP) est la fibrose de la capsule développée sur la lentille intraoculaire implantée (LIO) suite à la dé-différenciation de cellules épithéliales cristalliniennes (LECs) subissant une transition épithélio-mésenchymateuse (EMT). La littérature a montré que l'incidence de l’OCP est multifactorielle, dont l'âge ou la maladie du patient, la technique de chirurgie, le design et le matériau de la LIO. La comparaison des LIOs en acryliques hydrophiles et hydrophobes montre que les premières ont une OCP plus sévère, médiée par la transition EMT. En outre, il est
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Books on the topic "Intraocular lens (IOL)"

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Satellite Symposia India IOL-1990 (1990 New Delhi, India). Advances in intraocular lens implant: Proceedings of Satellite Symposia India IOL-1990, New Delhi, 26-29 March 1990 (Official Meeting of the International Intraocular Implant Club). Edited by Miyake K and International Intraocular Implant Club. Macmillan India, 1991.

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1953-, Slade Stephen, and Hauranieh Nicola, eds. Phakic IOLs: State of the art. Slack Inc., 2012.

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Ophthalmic surgical device markets: New IOL technology improves reimbursement outlook. Market Intelligence, 1993.

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Corporation, Market Intelligence Research, ed. Ophthalmic surgical device markets: New IOL technology improves reimbursement outlook. Market Intelligence, 1994.

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Azar, Dimitri T. IOL Surgery : Intraocular Lenses in Cataract and Refractive Surgery. W.B. Saunders Company, 2001.

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Fayzrakhmanov, R. R., M. M. Shishkin, K. I. Konovalova, and G. O. Karpov. Trans-scleral IOL fixation ( From difficult to simple). Publishing house "Bashkir Encyclopedia", 2020. http://dx.doi.org/10.25276/978-5-88185-472-0.

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The book deals with the main issues of fixing an intraocular lens with a complete loss of the lens support apparatus. This is the first illustrated guide to understanding the technology of trans-scleral IOL fixation. Special attention is paid to the technique of surgical treatment. The author's techniques and features of each stage of surgical treatment are considered.
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Advances in intraocular lens implant: Proceedings of Satellite Symposia India IOL-1990, New Delhi, 26-29 March 1990 (Official Meeting of the International Intraocular Implant Club). Macmillan India, 1991.

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1954-, Chang David F., ed. Mastering refractive IOLs: The art and science. Slack, 2008.

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Mastering Refractive IOLs-The Art and Science: A Clinical Manual. Slack Incorporated, 2008.

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Refractive Cataract Surgery and Multifocal IOLs. Slack Incorporated, 2001.

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Book chapters on the topic "Intraocular lens (IOL)"

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Zhu, Angela, and Courtney L. Kraus. "Intraocular Lens Exchange." In Pediatric Cataract Surgery and IOL Implantation. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38938-3_18.

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Weil, Natalie C., and Scott R. Lambert. "Primary Intraocular Lens Implantation." In Pediatric Cataract Surgery and IOL Implantation. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38938-3_13.

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Mireskandari, Kamiar. "Secondary Intraocular Lens Placement." In Pediatric Cataract Surgery and IOL Implantation. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38938-3_17.

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Kruger, Stacey J. "Calculation of Intraocular Lens Power." In Pediatric Cataract Surgery and IOL Implantation. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38938-3_9.

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Zepeda, Emily M., and Brenda L. Bohnsack. "Intraocular Lens Placement in the Setting of Glaucoma." In Pediatric Cataract Surgery and IOL Implantation. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38938-3_22.

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Ahmed, Ike K., and Matthew B. Schlenker. "IOL Explantation with Iris-Enclavated Intraocular Lens Implantation." In Operative Dictations in Ophthalmology. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-45495-5_30.

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Ahmed, Ike K., Matthew B. Schlenker, and Jeb Alden Ong. "IOL Explantation with Iris-Enclavated Intraocular Lens Implantation." In Operative Dictations in Ophthalmology. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-53058-7_35.

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Yamane, Shin. "Secondary Intraocular Lens Implantation: Flanged IOL Fixation Techniques." In Albert and Jakobiec's Principles and Practice of Ophthalmology. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-90495-5_199-1.

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Narang, Priya. "Glued Intrascleral Haptic Fixation of an Intraocular Lens (Glued IOL)." In Posterior Capsular Rent. Springer India, 2017. http://dx.doi.org/10.1007/978-81-322-3586-6_27.

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Phillips, Paul M., Vipul C. Shah, and Valliammai Muthuappan. "Endothelial Keratoplasty in the Setting of a Dislocated Intraocular Lens (IOL)." In Mastering Endothelial Keratoplasty. Springer India, 2016. http://dx.doi.org/10.1007/978-81-322-2821-9_2.

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Conference papers on the topic "Intraocular lens (IOL)"

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DeBoer, Charles, Hyung Wan Do, Jonathan Lee, Mark Humayun, and Yu-Chong Tai. "Biomimetic accommodating intraocular lens (IOL)." In 2012 IEEE 25th International Conference on Micro Electro Mechanical Systems (MEMS). IEEE, 2012. http://dx.doi.org/10.1109/memsys.2012.6170337.

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Milne, Peter J., Pascal F. Chapon, Marie Hamaoui, Jean-Marie A. Parel, H. Clayman, and Pascal O. Rol. "Spectral properties of common intraocular lens (IOL) types." In BiOS '99 International Biomedical Optics Symposium, edited by Pascal O. Rol, Karen M. Joos, Fabrice Manns, Bruce E. Stuck, and Michael Belkin. SPIE, 1999. http://dx.doi.org/10.1117/12.350580.

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Pedrigi, Ryan M., and Jay D. Humphrey. "Biomechanics of the Human Anterior Lens Capsule." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192073.

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The primary function of the lens of the eye, termed accommodation, is to precisely focus light onto the retina by changing curvature and corresponding refractive power. Investigators have long sought to understand the mechanism of accommodation in terms of interactions of the constituent tissues, which recently has been aided by biomechanical modeling. Such models depend heavily on accurate measurements of tissue mechanical properties and seek to predict stresses and strains. A critical component of the accommodative apparatus is the lens capsule, a bag-like membrane that encapsulates the lens
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Jouzdani, Sara, Rouzbeh Amini, and Victor H. Barocas. "Anterior Chamber Angle and Iris-Lens Contact Alteration During Pupillary Dilation." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53643.

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The aqueous humor (AH) provides oxygen and nutrients for the avascular ocular tissue specifically, the cornea and lens. AH is secreted by the ciliary body into the posterior chamber, passes through pupil, and drains into the anterior chamber (Fig. 1a). Resistance to the aqueous outflow generates the intraocular pressure (IOP), which is 15–20 mmHg in the normal eyes.
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Manzo, Maurizio, and Omar Cavazos. "A Wireless Photonic Intraocular Pressure Sensor." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70740.

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In this paper, we propose analytical and numerical experiments to investigate the feasibility of a wireless photonic sensor for measuring the intraocular pressure (IOP). The sensing element is a polymeric cavity embedded into a thin layer of biocompatible material integrated to a soft contact lens. The sensor concept is based on the morphology dependent resonance (MDR) phenomenon. Changes in the eye pressure perturb the micro-cavity morphology, leading to a shift in the optical modes. The IOP is measured by monitoring the shift of optical resonances. The sensor-light coupling is made through t
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Morrison, Paul, Maxwell Dixon, Arsham Sheybani, and Bahareh Rahmani. "Predicting Failures of Molteno and Baerveldt Glaucoma Drainage Devices Using Machine Learning Models." In 4th International Conference on Computer Science and Information Technology (COMIT 2020). AIRCC Publishing Corporation, 2020. http://dx.doi.org/10.5121/csit.2020.101610.

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The purpose of this retrospective study is to measure machine learning models' ability to predict glaucoma drainage device (GDD) failure based on demographic information and preoperative measurements. The medical records of sixty-two patients were used. Potential predictors included the patient's race, age, sex, preoperative intraocular pressure (IOP), preoperative visual acuity, number of IOP-lowering medications, and number and type of previous ophthalmic surgeries. Failure was defined as final IOP greater than 18 mm Hg, reduction in IOP less than 20% from baseline, or need for reoperation u
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Tong, Junfei, Deepta Ghate, Sachin Kedar, and Linxia Gu. "Image-Based Modeling of Optic Nerve Head Mechanics Following Lumbar Puncture." In 2017 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dmd2017-3531.

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Biomechanics of optic nerve head (ONH) has attracted increasing attention in recent years due to its association with ganglion cell damage and tissue remodeling resulted vision impairments [1, 2]. The ONH is exposed to both intraocular pressure (IOP) and intracranial pressure (ICP), separated by the lamina cribrosa (LC) which is regarded as the primary site of axonal injury in glaucoma[3]. The elevated IOP was widely acknowledged as a major risk factor for glaucoma. However, a large number of glaucoma patients never have an increase in IOP [4]. In studies that have looked at lumbar puncture (L
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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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