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Hyperopic Lasik

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https://www.readbyqxmd.com/read/29780929/optiwave-refractive-analysis-may-not-work-well-in-patients-with-previous-history-of-radial-keratotomy
#1
Fuxiang Zhang
Purpose: To report a case of significant hyperopic outcome (both eyes) following Optiwave Refractive Analysis (ORA) intraocular lens (IOL) power recommendation in a cataract patient with history of 8 cut radial keratotomy (RK) in each eye. Observations: It is hypothesized that increased intraocular pressure (IOP) from phacoemulsification could make the RK cuts swell, and change cornea shape intraoperatively. In this unique scenario, the corneal curvature readings from ORA could be quite different from preoperative readings or from stabilized postoperative corneal measurements...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29738587/risk-factors-for-re-treatment-following-hyperopic-lasik
#2
Michael Mimouni, Victor Flores, Tzahi Sela, Gur Munzer, Igor Kaiserman
PURPOSE: To determine the risk factors for re-treatment following LASIK in hyperopic eyes. METHODS: In this retrospective study, consecutive hyperopic eyes underwent LASIK at the Care Vision Laser Centers, Tel-Aviv, Israel, between January 2000 and October 2014. Patients were divided into two groups according to whether or not they underwent additional refractive surgery (re-treatment). Logistic regression was performed to determine predictors of re-treatment. RESULTS: Overall, 1,776 eyes of 888 patients were included, of which 82 (4...
May 1, 2018: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29738586/retrospective-comparison-of-visual-outcomes-after-kamra-corneal-inlay-implantation-with-simultaneous-prk-or-lasik
#3
Majid Moshirfar, Andrew E Bean, Julio C Albarracin, Ronald L Rebenitsch, Ryan T Wallace, Orry C Birdsong
PURPOSE: To report a retrospective study of simultaneous LASIK versus photorefractive keratectomy (PRK) with accompanying small-aperture cornea inlay implantation (KAMRA; AcuFocus, Inc., Irvine, CA) in treating presbyopia. METHODS: Simultaneous LASIK/inlay and simultaneous PRK/inlay was performed on 79 and 47 patients, respectively. Follow-up examinations were conducted at 1, 3, and 6 months postoperatively. The main outcome measures were safety, efficacy, predictability, and stability with primary emphasis on monocular uncorrected near visual acuity (UNVA)...
May 1, 2018: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29700964/refractive-regression-after-laser-in-situ-keratomileusis
#4
REVIEW
Mabel K Yan, John Sm Chang, Tommy Cy Chan
Uncorrected refractive errors are a leading cause of visual impairment across the world. In today's society, laser in-situ keratomileusis (LASIK) has become the most commonly performed surgical procedure to correct refractive errors. However, regression of the initially-achieved refractive correction has been a widely-observed phenomenon following LASIK since its inception more than two decades ago. Despite technological advances in laser refractive surgery and various proposed management strategies, post-LASIK regression is still frequently observed and has significant implications for the long-term visual performance and quality of life of patients...
April 26, 2018: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/29616154/higher-order-aberrations-following-hyperopia-treatment-small-incision-lenticule-extraction-laser-assisted-in-situ-keratomileusis-and-lenticule-implantation
#5
Yu-Chi Liu, Jiaxin Wen, Ericia Pei Wen Teo, Geraint P Williams, Nyein Chan Lwin, Jodhbir S Mehta
Purpose: To compare the postoperative higher-order-aberrations (HOAs) after hyperopic small incision lenticule extraction (SMILE), hyperopic laser-assisted in situ keratomileusis ( LASIK), and lenticule implantation for correction of hyperopia. Methods: Eighteen monkeys were divided to six groups: +2.00 D and +4.00 D hyperopic SMILE, +2.00 D and +4.00 D hyperopic LASIK ( n = 6 eyes for each), and lenticule implantation with a -2.00 D and -4.00 D lenticule ( n = 3 eyes for each)...
April 2018: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/29590157/hyperopic-refractive-correction-by-lasik-smile-or-lenticule-reimplantation-in-a-non-human-primate-model
#6
Geraint P Williams, Benjamin Wu, Yu Chi Liu, Ericia Teo, Chan L Nyein, Gary Peh, Donald T Tan, Jodhbir S Mehta
Hyperopia is a common refractive error, apparent in 25% of Europeans. Treatments include spectacles, contact lenses, laser interventions and surgery including implantable contact lenses and lens extraction. Laser treatment offers an expedient and reliable means of correcting ametropia. LASIK is well-established however SMILE (small-incision lenticule extraction) or lenticule implantation (derived from myopic laser-correction) are newer options. In this study we compared the outcomes of hyperopic LASIK, SMILE and lenticule re-implantation in a primate model at +2D/+4D treatment...
2018: PloS One
https://www.readbyqxmd.com/read/29335096/clinically-significant-laser-in-situ-keratomileusis-flap-striae
#7
Avi Wallerstein, Mathieu Gauvin, Eser Adiguzel, Harmanjit Singh, Vasudha Gupta, Mona Harissi-Dagher, Mark Cohen
PURPOSE: To describe the incidence, risk factors, and outcomes before and after irrigation of clinically significant laser in situ keratomileusis (LASIK) flap striae. SETTING: Multisurgeon multicenter standardized protocol practice. DESIGN: Retrospective case-control series. METHODS: Eyes with striae necessitating flap relift and irrigation were identified. Preoperative, intraoperative, and postoperative variables were collected...
December 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29315438/femtosecond-laser-assisted-lasik-with-and-without-the-adjuvant-use-of-mitomycin-c-to-correct-hyperopia
#8
Montserrat Garcia-Gonzalez, MariLuz Iglesias-Iglesias, Pilar Drake Rodriguez-Casanova, Juan Gros-Otero, Miguel A Teus
PURPOSE: To compare the visual and refractive results of femtosecond laser-assisted LASIK (FS-LASIK) with and without the adjuvant use of mitomycin C (MMC) to correct hyperopia. METHODS: A total of 152 consecutive hyperopic eyes were included in this retrospective, observational cohort study, comparing 76 eyes treated with FS-LASIK + MMC with 76 age- and refraction-matched eyes treated with FS-LASIK without MMC. Visual and refractive results were evaluated 1 day, 1 week, and 1, 3, 6, and 15 months postoperatively...
January 1, 2018: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29315435/femtosecond-lenticule-extraction-flex-for-spherocylindrical-hyperopia-using-new-profiles
#9
Walter Sekundo, Anke Messerschmidt-Roth, Dan Z Reinstein, Timothy J Archer, Marcus Blum
PURPOSE: To investigate new lenticule profiles for the treatment of hyperopia by femtosecond lenticule extraction (FLEx) for spherocylindrical hyperopia using a modified laser scan sequence. METHODS: In this prospective 9-month study, 39 eyes of 22 patients with the mean age of 49 years (range: 27 to 56 years) underwent hyperopic FLEx. The mean optical zone was 6 mm (range: 5.75 to 6.75 mm) with keratometry readings and magnitude of correction adjusted mean transition zone of 2...
January 1, 2018: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29223234/corneal-remodeling-after-implantation-of-a-shape-changing-inlay-concurrent-with-myopic-or-hyperopic-laser-in-situ-keratomileusis
#10
Roger F Steinert, Douglas D Koch, Beatrice Cochener, Alan Lang, Enrique Barragán-Garza, Arturo Chayet, Luis G Vargas
PURPOSE: To compare the induced addition (add)-power profile and epithelial remodeling between patients receiving hyperopic and myopic laser in situ keratomileusis (LASIK) concurrently with implantation of a corneal shape-changing inlay. SETTING: Specialty clinics in Monterrey and Tijuana, Mexico. DESIGN: Retrospective case series. METHODS: Preoperative hyperopic patients (mean spherical equivalent [SE] treatment +1...
November 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29223233/outcomes-of-retreatment-after-hyperopic-laser-in-situ-keratomileusis
#11
Andreas Frings, Elisa Intert, Johannes Steinberg, Vasyl Druchkiv, Stephan J Linke, Toam Katz
PURPOSE: To evaluate the efficacy, predictability, and safety of laser in situ keratomileusis (LASIK) retreatment in eyes with hyperopia. SETTING: Multicenter refractive surgery centers and University Hospital, Germany. DESIGN: Retrospective case series. METHODS: This multicenter study included hyperopic patients with a preoperative difference between cycloplegic and manifest refraction of 1.00 diopter (D) or less who had LASIK retreatment based on manifest refraction...
November 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29077186/laser-assisted-in-situ-keratomileusis-with-optimized-fast-repetition-and-cyclotorsion-control-excimer-laser-to-treat-hyperopic-astigmatism-with-high-cylinder
#12
Jorge L Alió Del Barrio, Mauro Tiveron, Ana B Plaza-Puche, María A Amesty, Laura Casanova, María J García, Jorge L Alió
PURPOSE: To evaluate the visual outcomes after femtosecond laser-assisted laser in situ keratomileusis (LASIK) surgery to correct primary compound hyperopic astigmatism with high cylinder using a fast repetition rate excimer laser platform with optimized aspheric profiles and cyclotorsion control. METHODS: Eyes with primary simple or compound hyperopic astigmatism and a cylinder power ≥3.00 D had uneventful femtosecond laser-assisted LASIK with a fast repetition rate excimer laser ablation, aspheric profiles, and cyclotorsion control...
October 18, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28965357/in-vivo-confocal-microscopic-investigation-of-the-cornea-after-autologous-implantation-of-lenticules-obtained-through-small-incision-lenticule-extraction-for-treatment-of-hyperopia
#13
Meiyan Li, Meng Li, Ling Sun, Tian Han, Lan Ding, Jun Xiang, Xingtao Zhou
PURPOSE: To investigate re-innervation in the implanted lenticule, as well as changes to the cornea, after correcting hyperopia with an autologous implantation of a lenticule obtained through small incision lenticule extraction (SMILE). METHODS: This study retrospectively analysed re-innervation in the implanted lenticule, as well as microscopic morphological changes in the corneal architecture of the recipient cornea in five patients (with myopia in one eye and hyperopia in the contralateral eye) who received SMILE in the myopic eye and femtosecond laser in situ keratomileusis (FS-LASIK) combined with lenticule implantation in the contralateral hyperopic eye...
January 2018: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28917415/bilateral-corneal-epithelial-macrocysts-following-hyperopic-laser-in-situ-keratomileusis
#14
Mahmoud O Jaroudi, Carole G Cherfan, Shady T Awwad
A 27-year-old woman had microkeratome-assisted laser in situ keratomileusis (LASIK) for moderate bilateral hyperopia. The preoperative ophthalmologic examination was unremarkable except for minimal lissamine green staining bilaterally on the nasal conjunctiva. On the first postoperative day, the uncorrected distance visual acuity (UDVA) was 20/20 bilaterally and the corneas were clear. Four days later, the patient presented with mild blur in both eyes. Examination showed diffuse bilateral epithelial cysts encompassing the central 6...
August 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28875960/analysis-of-macular-and-retinal-nerve-fiber-layer-thickness-in-children-with-refractory-amblyopia-after-femtosecond-laser-assisted-laser-in-situ-keratomileusis-a-retrospective-study
#15
Peng-Fei Zhao, Yue-Hua Zhou, Jing Zhang, Wen-Bin Wei
Background: Localized macular edema and retinal nerve fiber layer (RNFL) thinning have been reported shortly after laser in situ keratomileusis (LASIK) in adults. However, it is still unclear how LASIK affects the retina of children. This study aimed to investigate the macular retina and RNFL thickness in children with refractive amblyopia who underwent femtosecond laser-assisted LASIK (FS-LASIK). Methods: In this study, we included 56 eyes of 32 patients with refractive amblyopia who underwent FS-LASIK in our hospital from January 2012 to December 2016...
September 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28777775/induced-de-novo-astigmatism-after-hyperopic-lasik-versus-myopic-lasik-surgery-in-nonastigmatic-eyes
#16
Lily Karmona, Michael Mimouni, Igor Vainer, Tzahi Sela, Gur Munzer, Igor Kaiserman
PURPOSE: To compare the astigmatism induced surgically (SIA) by spherical hyperopic laser in situ keratomileusis (H-LASIK) versus myopic laser in situ keratomileusis (M-LASIK) in nonastigmatic eyes. METHODS: A retrospective study of patients who underwent LASIK surgery between 2005 and 2014 at the Care-Vision Laser Center, Israel. We calculated the mean absolute SIA and performed risk factor analysis for induced astigmatism. Differences between H-LASIK and M-LASIK were analyzed...
September 2017: Cornea
https://www.readbyqxmd.com/read/28745654/-analysis-of-corneal-biomechanical-changes-after-femtosecond-laser-assisted-laser-in-situ-keratomileusis-in-children-with-hyperopic-anisometropia
#17
I L Kulikova, O V Shlenskaya, N V Chapurin
AIM: to analyze corneal hysteresis (CH) and corneal resistance factor (RF) readings obtained with the Reichert Ocular Response Analyzer (ORA) before and after hyperopic femtolaser-assisted laser in situ keratomileusis (FS-LASIK) in children with anisometropia as well as to establish factors that may cause changes in these parameters. MATERIAL AND METHODS: CH and RF were evaluated before and 1.5 years after FS-LASIK performed on amblyopic eyes of 28 patients aged 6-14 years...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28646441/safety-efficacy-and-refractive-outcomes-of-lasik-surgery-in-patients-aged-65-or-older
#18
Paloma López-Montemayor, Jorge E Valdez-García, Denise Loya-García, Julio C Hernandez-Camarena
PURPOSE: Report on the safety, efficiency and refractive outcomes of LASIK surgery in patients aged 65 or older. METHODS: This study includes a case series of patients ≥65 years that underwent corneal refractive surgery during the period June 2010 to June 2015 at Hospital Zambrano Hellion, Monterrey, Mexico. Inclusion criteria were normal topography, central corneal thickness >500 μm, preoperative manifest refraction spherical equivalent (MRSE) up to -8...
June 23, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28589448/-laser-in-situ-keratomileusis-with-microkeratome-or-femtosecond-laser
#19
REVIEW
T Kohnen, G Steinwender
OBJECTIVE AND PRINCIPLES: In LASIK, after cutting a lamellating stromal corneal incision (flap) with a microkeratome or a femtosecond laser, the underlying tissue is treated with an excimer laser for refractive correction. The objective is to achieve independency from spectacles and contact lenses due to correction of ametropia. INDICATIONS: Surgery is indicated when the patient wishes to achieve independency from spectacles and contact lenses. For LASIK, the German Commission for Refractive Surgery defined a range of applicability for myopic correction up to -8 diopters (D), astigmatic correction up to 5 D and hyperopic correction up to +3 D...
July 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28586496/small-incision-lenticule-extraction-smile-for-hyperopia-optical-zone-diameter-and-spherical-aberration-induction
#20
COMPARATIVE STUDY
Dan Z Reinstein, Kishore R Pradhan, Glenn I Carp, Timothy J Archer, Marine Gobbe, Walter Sekundo, Raynan Khan, Purushottam Dhungana
PURPOSE: To evaluate optical zone diameter efficacy and spherical aberration change in hyperopic small incision lenticule extraction (SMILE). METHODS: Prospective study of 60 consecutive hyperopic SMILE procedures using the VisuMax femtosecond laser (Carl Zeiss Meditec, Jena, Germany) and matched LASIK procedures with the VisuMax and MEL 80 excimer (Carl Zeiss Meditec) lasers. Inclusion criteria were maximum attempted hyperopic meridian of between +1.00 and +7.00 diopters (D)...
June 1, 2017: Journal of Refractive Surgery
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