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https://www.readbyqxmd.com/read/27899387/activation-of-cytomegalovirus-corneal-endotheliitis-following-laser-in-situ-keratomileusis
#1
Tien-En Tan, Chui Ming Gemmy Cheung, Jodhbir S Mehta
A case of Cytomegalovirus (CMV) corneal endotheliitis following laser in-situ keratomileusis (LASIK) is presented. A 32-year-old man presented 3 weeks after uncomplicated myopic LASIK with unilateral LASIK flap oedema, interface fluid accumulation, keratic precipitates, anterior uveitis and raised intraocular pressure. Despite treatment with topical corticosteroids, he had 3 further recurrent episodes. Specular microscopy showed decreased endothelial cell density and aqueous humour. Polymerase chain reaction (PCR) testing was positive for CMV DNA...
November 29, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27824384/refractive-lenticule-transplantation-for-correction-of-iatrogenic-hyperopia-and-high-astigmatism-after-lasik
#2
Apostolos Lazaridis, Dan Z Reinstein, Timothy J Archer, Stephan Schulze, Walter Sekundo
PURPOSE: To design a technique for intrastromal transplantation of stromal lenticules with specific refractive power for correction of post-LASIK induced hyperopia and astigmatism. METHODS: A 28-year-old patient was referred for consultation after complicated LASIK for moderate myopia and astigmatism. The refractive error of the right eye was severely overcorrected due to data entry error. Post-LASIK refraction showed high astigmatism (right eye: +6.50 -9.00 @ 84°) and corrected distance visual acuity (CDVA) of 20/32...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27803856/effect-of-femtosecond-and-microkeratome-flaps-creation-on-the-cornea-biomechanics-during-laser-in-situ-keratomileusis-one-year-follow-up
#3
Qian Sun, Zheng-Zheng Deng, Yue-Hua Zhou, Jing Zhang, Xiao-Yan Peng
AIM: To compare the corneal biomechanical outcomes at one year after laser in situ keratomileusis (LASIK) with the flaps created by Ziemer and Moria M2 microkeratome with 110 head and -20 blade. METHODS: Totally 100 eyes of 50 consecutive patients were enrolled in this prospective study and divided into two groups for corneal flaps created by ZiemerFemto LDV and Moria M2 microkeratome with 110 head and -20 blade. Corneal biomechanical properties including cornea resistance factor (CRF) and cornea hysteresis (CH) were measured before and 1, 3, 6, 12mo after surgery by ocular response analyzer...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27799731/microcapillary-sign-of-flap-alignment-in-femtosecond-laser-assisted-in-situ-keratomileusis
#4
Fathy Fawzy, Sherine S Wahba, Nader Fawzy
We present an observational sign that ensures perfect alignment during femtosecond laser-assisted in situ keratomileusis (FS LASIK). Alignment is assured when a microsponge is used to dry the flap and the area of dryness exceeds the area of direct touch of the microsponge. The area might even reach the whole circumference of the flap at the first touch. This sign of alignment can be explained by microcapillary action. This sign was not elicited in flaps created by a microkeratome.
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27722762/small-incision-lenticule-extraction-smile-as-re-treatment-for-a-thick-lasik-flap
#5
Sara Catalan-Lopez, Alba Mariña Portas-Ferradas, Luis Cadarso-Suarez, Adriana Rodriguez-Rodriguez
PURPOSE: To report the case of a residual refractive error after LASIK for moderate myopia successfully re-treated several years later using the small incision lenticule extraction (SMILE) technique. METHODS: Case report. RESULTS: Following LASIK, the patient showed a central flap thickness of 269 microns, whereas residual stromal bed thickness under the flap was 210 microns. SMILE was performed within the flap. In this less invasive surgical procedure, the residual stromal bed is not manipulated and ablation is conducted on the existing flap...
October 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27631415/-the-kamra%C3%A2-inlay-a%C3%A2-realistic-approach
#6
M El-Husseiny, L Daas, A Viestenz, A Langenbucher, B Seitz
BACKGROUND AND PURPOSE: The KAMRA™ inlay (AcuFocus, Irvine, California, USA) is an additional option for correcting presbyopia that has been used for many years in refractive surgery. Our objective is to report our three-month postoperative results of KAMRA™ inlay implantation in terms of near, intermediate and distance vision. PATIENTS AND METHODS: All 24 patients (average age 54.1 ± 6.0 years) were treated with the KAMRA™ inlay in the non-dominant eye (75 % in the left eye) by the same surgeon (MEH)...
September 8, 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/27630372/a-large-scale-computational-analysis-of-corneal-structural-response-and-ectasia-risk-in-myopic-laser-refractive-surgery
#7
William Joseph Dupps, Ibrahim Seven
PURPOSE: To investigate biomechanical strain as a structural susceptibility metric for corneal ectasia in a large-scale computational trial. METHODS: A finite element modeling study was performed using retrospective Scheimpflug tomography data from 40 eyes of 40 patients. LASIK and PRK were simulated with varied myopic ablation profiles and flap thickness parameters across eyes from LASIK candidates, patients disqualified for LASIK, subjects with atypical topography, and keratoconus subjects in 280 simulations...
August 2016: Transactions of the American Ophthalmological Society
https://www.readbyqxmd.com/read/27621794/superficial-anterior-lamellar-keratoplasty-salk-for-trauma-induced-post-refractive-surgery-corneal-opacity
#8
Anita Ganger, Radhika Tandon, M Vanathi, Pardeep Sagar
PURPOSE: To report a case of post laser in situ keratomileusis (LASIK), nebulomacular corneal opacity following a trauma induced flap dehiscence and was managed with superficial anterior lamellar keratoplasty (SALK). CASE REPORT: A 32-year-old female underwent LASIK 2.5 years back, with a postoperative unaided visual acuity (VA) of 6/6 in both eyes. She was involved in a road traffic accident and sustained blunt trauma to the right eye 5 months before. At the time of presentation, the VA was 1/60 in the right eye...
July 2016: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/27621782/intraoperative-flap-complications-in-lasik-surgery-performed-by-ophthalmology-residents
#9
Lorena Romero-Diaz-de-Leon, Juan Carlos Serna-Ojeda, Alejandro Navas, Enrique O Graue-Hernández, Arturo Ramirez-Miranda
PURPOSE: To report the rate of flap-related complications in LASIK surgery performed by in-training ophthalmology residents and to analyze the risk factors for these complications. METHODS: We analyzed 273 flap dissections in 145 patients from March 2013 to February 2014. We included all LASIK surgeries performed by 32 ophthalmology residents using a Moria M2 microkeratome. All the flap-related complications were noted. Comparison between both groups with and without complications was performed with an independent Student's t-test and relative risks were calculated...
July 2016: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/27621589/comparison-of-self-reported-quality-of-vision-outcomes-after-myopic-lasik-with-two-femtosecond-lasers-a-prospective-eye-to-eye-study
#10
Christopher S Sáles, Edward E Manche
PURPOSE: To compare self-reported quality of vision (QoV) outcomes after myopic LASIK (laser-assisted in situ keratomileusis) with two femtosecond lasers. DESIGN: Prospective, randomized, eye-to-eye study. METHODS: Consecutive myopic patients were treated with wavefront-guided LASIK bilaterally. Eyes were randomized according to ocular dominance. The flap of one eye was made with the IntraLase FS 60 kHz femtosecond laser with a conventional 70° side-cut, and the flap of the fellow eye was made with the IntraLase iFS 150 kHz femtosecond laser with an inverted 130° side-cut...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27583797/comparison-of-the-demarcation-line-on-asoct-after-simultaneous-lasik-and-different-protocols-of-accelerated-collagen-crosslinking-a-bilateral-eye-randomized-study
#11
Alex L K Ng, Peter S K Kwok, Ricky T K Wu, Vishal Jhanji, Victor C P Woo, Tommy C Y Chan
PURPOSE: To compare the demarcation line depth after 2 different protocols of simultaneous laser in situ keratomileusis and collagen crosslinking (LASIK Xtra). METHODS: Twenty-three patients receiving bilateral LASIK Xtra were included in this comparative interventional study. The corneal stroma was soaked with 0.22% riboflavin for 90 seconds before flap repositioning. One eye was then randomized to receive either 18 mW/cm of ultraviolet A irradiation for 120 seconds or for 180 seconds, whereas the fellow eye received the other irradiation duration...
August 31, 2016: Cornea
https://www.readbyqxmd.com/read/27531111/-the-histopathological-observation-of-rabbit-corneas-after-small-incision-lenticule-extraction
#12
Z X Dong, L He, Z Y Sun, Y Shen, R Y Chu, X T Zhou
OBJECTIVE: To evaluate the morphological changes during corneal wound healing after small incision lenticule extraction (SMILE). METHODS: Twenty-one New Zealand white rabbits were randomly divided into 2 groups (group A of 12 rabbits and group B of 9 rabbits) using the toss of a coin. All the right eyes were treated. Group A underwent SMILE, and group B underwent femtosecond laser-assisted in situ keratomileusis (LASIK), with the same refractive corrections of-6...
July 2016: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/27518898/opaque-bubble-layer-incidence-in-femtosecond-laser-assisted-lasik-comparison-among-different-flap-design-parameters
#13
Leonardo Mastropasqua, Roberta Calienno, Manuela Lanzini, Niccolò Salgari, Sergio De Vecchi, Rodolfo Mastropasqua, Mario Nubile
The purpose of this study was to evaluate the incidence of opaque bubble layer (OBL) in femtosecond laser-assisted in situ keratomileusis (LASIK) flaps created with the support of Visumax Carl Zeiss femtosecond laser, planned with different flap diameters (7.90, 8.0, and 8.20 mm) and the same laser energy and power settings. Incidence of intraoperative OBL in flaps of consecutive 108 patients (216 eyes) subjected to bilateral femtosecond-assisted LASIK was considered. Flap creation was performed with the same laser design parameters (spot distance and energy offset) and different presetting diameters of 7...
August 12, 2016: International Ophthalmology
https://www.readbyqxmd.com/read/27500109/comparison-of-corneal-flaps-created-by-wavelight-fs200-and-intralase-fs60-femtosecond-lasers
#14
Qian Liu, Yue-Hua Zhou, Jing Zhang, Yan Zheng, Chang-Bin Zhai, Jing Liu
AIM: To assess and compare the morphology of corneal flaps created by the Wavelight FS200 and Intralase FS60 femtosecond lasers in laser in situ keratomileusis (LASIK). METHODS: Four hundred eyes of 200 patients were enrolled in this study and divided into Wavelight FS200 groups (200 eyes) and Intralase FS60 groups (200 eyes). Fourier-domain optical coherence tomography (RTVue OCT) was used to measure the corneal flap thickness of 36 specified measurements on each flap one week after surgery...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27490052/interface-fluid-syndrome-after-laser-in-situ-keratomileusis-lasik-because-of-fuchs-endothelial-dystrophy-reversed-by-descemet-membrane-endothelial-keratoplasty-dmek
#15
Salvatore Luceri, Zainab Baksoellah, Abbas Ilyas, Lamis Baydoun, Gerrit R J Melles
PURPOSE: To describe a case that developed "interface fluid syndrome" after previous laser in situ keratomileusis (LASIK) because of Fuchs endothelial dystrophy (FED), which was reversed by Descemet membrane endothelial keratoplasty (DMEK). METHODS: A 58-year-old male patient presented with bilateral visual impairment owing to FED and visually significant cataract. Cataract surgery was carried out in both eyes followed by DMEK in his left eye. RESULTS: After cataract surgery, visual acuity did not improve sufficiently because corneal thickness increased and a fine cleft with interface fluid developed between the LASIK-flap and the residual stromal bed...
August 3, 2016: Cornea
https://www.readbyqxmd.com/read/27469426/laser-in-situ-keratomileusis-for-high-hyperopia-with-corneal-vertex-centration-and-asymmetric-offset
#16
Diego de Ortueta, Sam Arba-Mosquera
PURPOSE: To investigate refractive outcomes and induction of corneal higher order aberrations (HOA) in eyes that underwent laser-assisted in situ keratomileusis (LASIK) for high hyperopia correction using an aberration neutral profile with corneal vertex centration and asymmetric offset. METHODS: A total of 24 consecutive patients (38 eyes) who underwent LASIK by one surgeon using AMARIS 750S excimer laser and a Carriazo-Pendular microkeratome for flap creation were retrospectively analyzed...
July 23, 2016: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/27467046/globe-rupture-of-a-post-lasik-keratectasia-eye-from-blunt-trauma
#17
Albert Y Cheung, David G Heidemann
PURPOSE: To report a case of globe rupture in a patient with post-laser in situ keratomileusis (LASIK) ectasia after blunt trauma. METHODS: Observational case report. RESULTS: A 42-year-old man with a history of post-LASIK ectasia sustained paracentral corneal rupture secondary to blunt trauma from a fist to his left eye (OS). Slit-lamp examination revealed rupture in the posterior stroma (inferior paracentral) of the OS with an overlying intact LASIK flap; however, the inferior edges of the LASIK flap were Seidel positive...
July 27, 2016: Cornea
https://www.readbyqxmd.com/read/27430523/inhibition-of-recurrence-of-epithelial-ingrowth-with-an-amniotic-membrane-pressure-patch-to-a-laser-in-situ-keratomileusis-flap-with-a-central-stellate-laceration-a-case-report
#18
Kye Yoon Kwon, Yong Woo Ji, Jeihoon Lee, Eung Kweon Kim
BACKGROUND: Surgical lifting and scraping is a well-known treatment for epithelial ingrowth, but treatment for epithelial ingrowth on the centrally perforated laser in situ keratomileusis (LASIK) flap has not been well studied. CASE PRESENTATION: We present a patient who had epithelial ingrowth to the backside of the flap through a central LASIK flap laceration with a stellate shape. The patient had undergone uncomplicated bilateral LASIK surgery 3 years before the trauma...
2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27331149/contralateral-assessment-of-sub-bowman-keratomileusis-sbk-microkeratome-suction-duration-on-laser-assisted-in-situ-keratomileusis-lasik-flap-characteristics
#19
Mohamed Omar Yousif, Nizar Saleh Abdelfattah, Amira A Zayed, Ashraf H Soliman
PURPOSE: To describe the effect of prolonging the standard suction duration during laser-assisted in-situ keratomileusis (LASIK) and its effect on flap thickness and hinge length using sub-Bowman keratomileusis (SBK) microkeratome. METHODS: Fifty-six eyes (28 patients) were included and divided into 2 groups; Group-A: eyes with flatter corneas (36 eyes, 18 patients) and mean keratometric readings ranging from 40.13 to 43.71 diopters (D). Group-B: eyes with steeper corneas (20 eyes, 10 patients) with mean keratometric readings ranging from 43...
June 2016: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/27257609/effect-of-fibrin-glue-on-corneal-lamellar-healing-and-how-it-correlates-to-biomechanical-properties-biomechanical-wavefront-analysis-and-confocal-study
#20
Almamoun Abdelkader
BACKGROUND: To evaluate, using a rabbit model, the influence of the wound healing process at the flap edge on corneal biomechanics after sutured, glued, and non-augmented microkeratome flaps. METHODS: Unilateral 160 μm thick laser in situ keratomileusis (LASIK) flaps using a mechanical microkeratome were performed on the corneas of the left eyes of 36 rabbits. Animals were then divided into 3 groups of 12 rabbits each: A: the flaps were glued with human fibrin tissue adhesive (Tisseel); B: the flaps were sutured; and C: the flaps were allowed to heal without the use of sutures or glue (non-augmented)...
2016: Eye and Vision (London, England)
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