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Journal of Refractive Surgery

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https://www.readbyqxmd.com/read/28407172/comparison-of-combined-transepithelial-phototherapeutic-keratectomy-and-mechanical-debridement-during-corneal-cross-linking
#1
LETTER
Michael A Grentzelos, Konstantinos I Tsoulnaras, George D Kymionis
No abstract text is available yet for this article.
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407171/smile-as-re-treatment-for-a-thick-lasik-flap
#2
LETTER
Montserrat Garcia-Gonzalez, Miguel A Teus
No abstract text is available yet for this article.
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407170/cxl-at-the-slit-lamp-no-clinically-relevant-changes-in-corneal-riboflavin-distribution-during-upright-uv-irradiation
#3
LETTER
Basile Salmon, Olivier Richoz, David Tabibian, Sabine Kling, Raphael Wuarin, Farhad Hafezi
No abstract text is available yet for this article.
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407169/collagen-cross-linking-with-photoactivated-riboflavin-pack-cxl-for-bacterial-keratitis-after-small-incision-lenticule-extraction-smile
#4
Tommy C Y Chan, Vanissa W S Chow, Vishal Jhanji
PURPOSE: To report a case of infectious keratitis after small incision lenticule extraction (SMILE) treated with collagen cross-linking with photoactivated riboflavin (PACK-CXL). METHODS: Case report and literature review. RESULTS: A patient presented with culture-proven bacterial keratitis 5 days after SMILE was treated with fortified topical antibiotics and PACK-CXL. Irrigation of the corneal cap-stromal bed interface, which can be difficult and affect visual outcomes, was not performed...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407168/intraoperative-optical-coherence-tomography-vault-measurement-in-posterior-chamber-phakic-intraocular-lens-implantation
#5
Tien-En Tan, Yu-Chi Liu, Lasitha Saroj Jayasinghe, Jodhbir S Mehta
PURPOSE: To describe the use of intraoperative optical coherence tomography (OCT) vault measurement in 5 cases of posterior chamber phakic intraocular lens (IOL) implantation. METHODS: This case series included 5 eyes in 3 consecutive patients undergoing phakic IOL implantation. RTVue OCT (Optovue, Inc., Fremont, CA) was used to obtain intraoperative vault measurements after pupil constriction. Visante OCT (Carl Zeiss Meditec, Jena, Germany) was used to obtain postoperative vault measurements...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407167/introduction-of-two-novel-stiffness-parameters-and-interpretation-of-air-puff-induced-biomechanical-deformation-parameters-with-a-dynamic-scheimpflug-analyzer
#6
Cynthia J Roberts, Ashraf M Mahmoud, Jeffrey P Bons, Arif Hossain, Ahmed Elsheikh, Riccardo Vinciguerra, Paolo Vinciguerra, Renato Ambrósio
PURPOSE: To investigate two new stiffness parameters and their relationships with the dynamic corneal response (DCR) parameters and compare normal and keratoconic eyes. METHODS: Stiffness parameters are defined as Resultant Pressure at inward applanation (A1) divided by corneal displacement. Stiffness parameter A1 uses displacement between the undeformed cornea and A1 and stiffness parameter highest concavity (HC) uses displacement from A1 to maximum deflection during HC...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407166/evaluation-of-the-true-wavefront-aberrations-in-eyes-implanted-with-a-rotationally-asymmetric-multifocal-intraocular-lens
#7
Vyas Akondi, Pablo Pérez-Merino, Eduardo Martinez-Enriquez, Carlos Dorronsoro, Nicolás Alejandre, Ignacio Jiménez-Alfaro, Susana Marcos
PURPOSE: Standard evaluation of aberrations from wavefront slope measurements in patients implanted with a rotationally asymmetric multifocal intraocular lens (IOL), the Lentis Mplus (Oculentis GmbH, Berlin, Germany), results in large magnitude primary vertical coma, which is attributed to the intrinsic IOL design. The new proposed method analyzes aberrometry data, allowing disentangling the IOL power pupillary distribution from the true higher order aberrations of the eye. METHODS: The new method of wavefront reconstruction uses retinal spots obtained at both the near and far foci...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407165/comparison-of-corneal-epithelial-remodeling-after-femtosecond-laser-assisted-lasik-and-small-incision-lenticule-extraction-smile
#8
Ik-Hee Ryu, Bong Jun Kim, Jong-Hyuck Lee, Sun Woong Kim
PURPOSE: To comparatively investigate changes in epithelial thickness between myopic femtosecond laser-assisted LASIK (FS-LASIK) and small incision lenticule extraction (SMILE). METHODS: This study compared the topographic epithelial thickness changes in 175 myopic eyes undergoing FS-LASIK (62 eyes) or SMILE (113 eyes). Epithelial thickness was obtained using spectral-domain optical coherence tomography before surgery and 1 and 3 months after surgery. Topographic epithelial thickness obtained by automatic algorithm and thickness variability (standard deviation over 17 imaged areas) was compared between two groups...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407164/intraocular-pressure-after-implantation-of-a-phakic-collamer-intraocular-lens-with-a-central-hole
#9
Ignacio Rodríguez-Una, Pedro Pablo Rodríguez-Calvo, Luis Fernández-Vega Cueto, Carlos Lisa, Andrés Fernández-Vega Cueto, José F Alfonso
PURPOSE: To investigate the middle-term intraocular pressure (IOP) results after implantation of a posterior chamber collagen copolymer phakic intraocular lens (IOL) (V4c Visian; STAAR Surgical Co., Nidau, Switzerland) with a central hole in patients with myopia. METHODS: This retrospective study enrolled patients who had implantation of a phakic IOL with a central hole. IOP, central vault, and adverse events were evaluated 1, 3, 6, 12, and 24 months postoperatively...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407163/effect-of-topical-nonsteroidal-anti-inflammatory-drugs-on-pupillary-size-during-uncomplicated-cataract-surgery
#10
Alejandro Rodríguez-García, Julio C Hernández-Camarena, Gilberto R López-Jaime, José A Nava-García
PURPOSE: To compare the effectiveness of three different topical nonsteroidal anti-inflammatory drugs (NSAIDs) in inhibiting surgically induced miosis during uncomplicated cataract phacoemulsification. METHODS: Prospective, randomized, double-masked comparative study of patients aged 40 years or older with grades II to III cataracts (Lens Opacities Classification System) and no other comorbidities. Participants were randomized into four groups: 0.1% nepafenac, 0...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407162/effects-of-short-term-preoperative-topical-ketorolac-on-pupil-diameter-in-eyes-undergoing-femtosecond-laser-assisted-capsulotomy
#11
Vasilios F Diakonis, Georgios A Kontadakis, Apostolos G Anagnostopoulos, Nilufer Yesilirmak, Daniel P Waren, Florence Cabot, Sonia H Yoo, Kendall E Donaldson
PURPOSE: To assess pupil diameter before and after femtosecond laser-assisted capsulotomy in patients who were pretreated with a short-term topical nonsteroidal anti-inflammatory drug (NSAID) (ketorolac) versus those without pretreatment. METHODS: This prospective, randomized, observational case series included consecutive patients scheduled to undergo cataract extraction using the Catalys femtosecond laser platform (Abbott Medical Optics, Inc., Santa Ana, CA) to perform only capsulotomies...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407161/preliminary-evidence-of-successful-near-vision-enhancement-with-a-new-technique-presbyopic-allogenic-refractive-lenticule-pearl-corneal-inlay-using-a-smile-lenticule
#12
Soosan Jacob, Dhivya Ashok Kumar, Amar Agarwal, Athiya Agarwal, Ramalingam Aravind, A I Saijimol
PURPOSE: To describe a new technique (PrEsbyopic Allogenic Refractive Lenticule [PEARL] inlay) using an allogenic corneal inlay prepared from a small incision lenticule extraction (SMILE) lenticule. METHODS: A SMILE lenticule of specified thickness (mean: 61.5 ± 3.32 µm) was trephined at the center to 1-mm diameter and implanted in the cornea on the coaxially sighted light reflex under a femtosecond laser-created cap of 120 µm in the nondominant eye of presbyopic patients...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407160/standard-for-reporting-refractive-outcomes-of-intraocular-lens-based-refractive-surgery
#13
EDITORIAL
Dan Z Reinstein, Timothy J Archer, Sathish Srinivasan, Nick Mamalis, Thomas Kohnen, William J Dupps, J Bradley Randleman
No abstract text is available yet for this article.
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28264137/report-of-glistenings-does-not-correspond-with-the-definition-of-glistenings
#14
LETTER
Mark Packer, Liliana Werner
No abstract text is available yet for this article.
March 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28264136/phototherapeutic-keratectomy-science-and-art
#15
Steven E Wilson, Gustavo K Marino, Carla S Medeiros, Marcony R Santhiago
PURPOSE: To describe, with videos, the principles of excimer laser phototherapeutic keratectomy (PTK) for the treatment of corneal scars, corneal surface irregularity, and recurrent corneal erosions. METHODS: Depending on the pathology in a treated cornea, the epithelium is removed either by transepithelial PTK ablation with the excimer laser or thorough scraping with a scalpel blade. Stromal PTK can be performed with or without photorefractive keratectomy (PRK), depending on the refractive status of both eyes...
March 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28264135/smile-rescue-delayed-lenticule-removal-in-a-patient-with-high-myopia
#16
Jessica Y Tong, Svetlana Cherepanoff, John J Males
PURPOSE: To report successful stromal lenticule extraction, 18 weeks after an aborted small incision lenticule extraction (SMILE) procedure. METHODS: Case report. RESULTS: SMILE was planned in both eyes in another center to correct high myopia. The right eye was treated uneventfully with immediate lenticule extraction and normal postoperative corneal and topographic appearance. Femtosecond laser treatment was applied to the left eye, but the lenticule could not be removed and the procedure was aborted...
March 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28264134/biomechanical-weakening-of-different-re-treatment-options-after-small-incision-lenticule-extraction-smile
#17
Sabine Kling, Bogdan Spiru, Farhad Hafezi, Walter Sekundo
PURPOSE: To determine the corneal weakening induced by different re-treatment options after small incision lenticule extraction (SMILE) and investigate the potential of corneal cross-linking (CXL) to reestablish the original corneal stress resistance. METHODS: A total of 96 freshly enucleated porcine corneas were used. The initial refractive correction was defined to be -11.00 diopters (D) and the required enhancement to be -3.00 D. Three different re-treatment options were analyzed: -3D Re-SMILE, -3D photorefractive keratectomy (PRK) on top of the SMILE cap, and cap-to-flap conversion and -3D excimer ablation on the stromal bed (LASIK)...
March 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28264133/why-non-contact-tonometry-tests-cannot-evaluate-the-effects-of-corneal-collagen-cross-linking
#18
Ángel Ortillés, José F Rodríguez-Matas, Miguel Á Ariza-Gracia, Gemma Pascual, Begoña Calvo
PURPOSE: To assess the feasibility of characterizing and following up the mechanical behavior of the corneal tissue after corneal cross-linking (CXL) by using a combined mechanical (in vivo indentation and in vitro uniaxial tensile tests) and morphological (immunohisto-chemistry) experimental protocol. METHODS: CXL (3 mW/cm(2); 370 nm) for 20 minutes (total dose 3.6 J/cm(2)) was performed on 12 New Zealand rabbits. The mechanical behavior of the cornea was characterized in small and large strain regimens using an in vivo indentation test with a laboratory device and an in vitro uniaxial tensile test, respectively...
March 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28264132/influences-of-flap-shape-and-hinge-angle-on-opaque-bubble-layer-formation-in-femtosecond-laser-assisted-lasik-surgery
#19
Hung-Yuan Lin, Yi-Ting Fang, Ya-Jung Chuang, Han-Chieh Yu, Christy Pu, Yiing-Jenq Chou, Chih-Yi Chien, Pi-Jung Lin, Steven C Schallhorn, Chi-Chin Sun
PURPOSE: To evaluate the effects of different flap shapes and hinge angles on opaque bubble layer (OBL) formation using a femtosecond laser for flap creation in LASIK surgery. METHODS: This retrospective study evaluated 138 eyes of 73 patients who underwent femtosecond laser-assisted LASIK with a 150-kHz IntraLase femtosecond laser (Abbott Medical Optics, Inc., Santa Ana, CA) for myopic astigmatism and compared differences between different flap shapes and hinge angles on OBL formation...
March 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28264131/ex-vivo-study-of-transepithelial-corneal-cross-linking
#20
Andrea Cruzat, Anita N Shukla, Samer N Arafat, Saleh Alageel, Clara Colon, James Chodosh, Joseph B Ciolino
PURPOSE: To perform in vitro assessment of different techniques of transepithelial corneal cross-linking (CXL) and to compare the results to deepithelialized CXL. METHODS: Transepithelial CXL was performed after pre-treatment with or without penetration enhancers (gum cellulose, 0.44% sodium chloride, and 0.01% benzalkonium chloride) for 15 or 60 minutes. Deepithelialized corneas underwent CXL after pretreatment with riboflavin for 15 minutes, according to the Dresden protocol...
March 1, 2017: Journal of Refractive Surgery
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