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https://www.readbyqxmd.com/read/28586500/implantation-of-implantable-collamer-lenses-after-radial-keratotomy
#1
Bárbara Martín-Escuer, José F Alfonso, José J Esteve-Taboada, Luis Fernández-Vega Cueto, Robert Montés-Micó
PURPOSE: To assess the predictability, efficacy, and safety of posterior chamber phakic implantable collamer lens (ICL) implantation after radial keratotomy. METHODS: In a retrospective non-comparative interventional case series, outcomes in 6 consecutive eyes of 4 patients with residual refraction after radial keratotomy were analyzed after the implantation of ICLs. All of the lenses were implanted to correct the residual refractive error, ranging from -12.00 to +3...
June 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28581285/long-term-stability-of-minimally-invasive-radial-keratotomy-for-mild-to-moderate-keratoconus
#2
Kahoko Fujimoto, Hideya Osawa, Takashi Moriyama, T Miyamoto, Tomomi Irie, Tetsuya Nishimura, Tomoyuki Inoue
PURPOSE: This study aimed to evaluate the long-term stability of minimally invasive radial keratotomy (mini-RK) for eyes with mild to moderate keratoconus. DESIGN: Retrospective observational case series. METHODS: Eleven eyes from 6 patients with hard contact lens (HCL)-intolerant keratoconus underwent mini-RK and were followed up for more than 5 years. The mini-RK consisted of 8 radial incisions with depths of 90% of the thinnest corneal thickness, based on the Lindstrom nomogram...
April 10, 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28549845/tomographic-analysis-of-anterior-posterior-and-total-corneal-refractive-power-changes-after-femtosecond-laser-assisted-keratotomy
#3
Franziska Löffler, Myriam Böhm, Michael Herzog, Kerstin Petermann, Thomas Kohnen
PURPOSE: To analyze the effect of penetrating femtosecond laser-assisted keratotomy (pFLAK) during laser lens surgery on anterior, posterior corneal astigmatism and total corneal refractive power (TCRP) astigmatism (CAant, CApost, CATCRP) measured with Scheimpflug tomography. DESIGN: Prospective, interventional case series. METHODS: This institutional study included 27 eyes of 23 patients (65 ± 8 years) with low to moderate CATCRP determined with Scheimpflug tomography (Pentacam HR) after penetrating femtosecond laser-assisted keratotomy (pFLAK) and laser lens surgery...
May 23, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28532939/guiding-flying-spot-laser-transepithelial-phototherapeutic-keratectomy-with-optical-coherence-tomography
#4
REVIEW
Yan Li, Hideaki Yokogawa, Maolong Tang, Winston Chamberlain, Xinbo Zhang, David Huang
PURPOSE: To analyze transepithelial phototherapeutic keratectomy (PTK) results using optical coherence tomography (OCT) and develop a model to guide the laser dioptric and depth settings. SETTING: Casey Eye Institute, Portland, Oregon, USA. DESIGN: Prospective nonrandomized case series. METHODS: Patients with superficial corneal opacities and irregularities had transepithelial PTK with a flying-spot excimer laser by combining wide-zone myopic and hyperopic astigmatic ablations...
April 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28532927/modification-of-the-wound-construction-to-prevent-dehiscence-of-radial-keratotomy-incision-in-cataract-surgery-wave-shaped-scleral-incision
#5
Haiying Jin, Qi Zhang, Peiquan Zhao
We describe a modified scleral tunnel incision to provide adequate fracture resistance and maneuverability during manipulations in cataract surgery after radial keratotomy (RK) surgery. In cases without sufficient space between the RK incisions to create a corneal incision, the modified incision can be performed. A scleral groove of one-half scleral thickness is made 3.0 mm posterior to the limbus. The groove circumvents the end of the preexisting RK incision at the limbus. To prevent the incisional edge from sagging, the ends of the external incision are swept up slightly, forming a wave-shaped edge...
April 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28458708/femtosecond-laser-arcuate-keratotomy-for-the-correction-of-postkeratoplasty-high-astigmatism-in-keratoconus
#6
Mohammad Naser Hashemian, Habib Ojaghi, Mehrdad Mohammadpour, Mahmoud Jabbarvand, Firouzeh Rahimi, Mohammad-Ali Abtahi, Mehdi Mazloumi, Seyed-Hossein Abtahi
BACKGROUND: Astigmatism is the leading complication in visual recovery after penetrating keratoplasty (PKP) and deep anterior lamellar keratoplasty (DALK); in this study, we evaluated the outcome of femtosecond laser arcuate keratotomy (FLAK) after DALK and PKP in Iranian keratoconic patients. MATERIALS AND METHODS: In this prospective interventional case series, refractive and keratometric predictability, efficacy, and complications of FLAK for postkeratoplasty astigmatism in keratoconus were evaluated; 23 eyes of 23 consecutive patients (mean age of 32...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28428679/mini-asymmetric-radial-keratotomy-and-corneal-cross-linking-for-the-treatment-of-a-bilateral-stage-iv-keratoconus-in-a-14-year-old-child
#7
Marco Abbondanza, Gabriele Abbondanza, Valentina De Felice
AIM: To present the case of a 14-year-old boy with bilateral stage IV keratoconus, treated with a combined MARK + CXL intervention, without the need for a corneal transplantation. RESULTS: The left eye displays considerable improvements, with a follow-up of 13.5 years: Kmax is decreased by 5.53 D, Kmed is decreased by 1.95 D and thinnest pachymetry is increased by 106 µm. The right eye shows equally remarkable parameters, with a follow-up of 9.5 years: Kmax is decreased by 8...
February 2017: Medical Archives
https://www.readbyqxmd.com/read/28414606/effects-of-topically-applied-heterologous-serum-on-reepithelialization-rate-of-superficial-chronic-corneal-epithelial-defects-in-dogs
#8
J Seth Eaton, Steven R Hollingsworth, Bradford J Holmberg, Michael H Brown, Patricia J Smith, David J Maggs
OBJECTIVE To assess the effects of topical application of undiluted heterologous serum on time to corneal reepithelialization in dogs with superficial chronic corneal epithelial defects (SCCEDs). DESIGN Multicenter, randomized, double-masked, controlled clinical trial. ANIMALS 41 client-owned dogs. PROCEDURES After collection of baseline clinical and historical data, dogs were randomly assigned to receive topically applied undiluted heterologous serum (n = 22) or isotonic saline (0.9% NaCl) solution (19) along with tobramycin and atropine...
May 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28366359/simple-steep-axis-marking-technique-using-a-corneal-analyzer
#9
Alex L K Ng, Tommy C Y Chan, Vishal Jhanji, George P M Cheng
We describe a simple steep-axis marking technique that uses a corneal analyzer (OPD III scan) during arcuate keratotomy in femtosecond laser-assisted cataract surgery. The technique requires a single reference mark at the limbus, which does not have to be on the horizontal axis. Using the corneal analyzer, the angle between the steep axis and the reference line between the reference mark and the center of the cornea can be determined. The angle from the reference mark is used intraoperatively to locate the steep axis...
February 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28210176/femtosecond-astigmatic-keratotomy-for-postkeratoplasty-astigmatism
#10
Nasser Al Sabaani, Salem Al Malki, Mohanna Al Jindan, Abdullah Al Assiri, Samar Al Swailem
PURPOSE: To evaluate the initial outcomes of femtosecond laser arcuate keratotomies (AK) to correct high astigmatism after keratoplasty. METHODS: This retrospective non-comparative interventional study included 52 consecutive patients (52 eyes) who underwent Intralase-enabled arcuate keratotomies. Changes in uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BCVA), mean refractive and keratometric astigmatism, preoperative and postoperative manifest refraction and complications were the main outcome measures...
July 2016: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28181368/diamond-burr-debridement-vs-grid-keratotomy-in-canine-scced-with-scanning-electron-microscopy-diamond-burr-tip-analysis
#11
Chloe B Spertus, Josef M Brown, Elizabeth A Giuliano
OBJECTIVES: (i) Compare the outcome of canine SCCED treated with grid keratotomy (GK) or diamond burr debridement (DBD); (ii) Serially evaluate morphologic and elemental composition changes to diamond burr tips. ANIMALS STUDIED: A total of 91 eyes of 88 canine SCCED patients treated at the University of Missouri (2005-2015); 75 fresh cadaver porcine globes. PROCEDURES: (i) Medical records were reviewed retrospectively. Data were analyzed for age, sex, breed, procedure performed, eye(s) on which the procedure was performed, time to healing after a single surgical procedure, performance of a second surgical procedure, contact lens placement, and postprocedural complications...
February 9, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/27992428/outcomes-of-phacoemulsification-using-different-size-of-clear-corneal-incision-in-eyes-with-previous-radial-keratotomy
#12
Jing Shang Zhang, Xue Liu, Jin Da Wang, Ying Xiong, Jing Li, Xiao Xia Li, Jing Zhao, Qi Sheng You, Yao Huang, Frank Tsai, Larry Baum, Vishal Jhanji, Xiu Hua Wan
OBJECTIVE: To evaluate visual outcomes and complications after phacoemulsification in eyes with cataract and previous radial keratotomy (RK) cuts using different sizes of clear corneal incisions. METHODS: The study was a retrospective study. Thirty eyes with cataract and previous RK underwent phacoemulsification and intraocular lens (IOL) implantation. Among them 7 eyes had 8 RK cuts, 13 eyes had 12 RK cuts, and 10 eyes had 16 RK cuts. Phacoemulsification and IOL implantation were performed through a 2...
2016: PloS One
https://www.readbyqxmd.com/read/27956322/fuchs-dystrophy-associated-with-radial-keratotomy-lamellar-or-perforating-keratoplasty
#13
P Rodriguez-Ausin, D Antolin-Garcia, L Santamaria Garcia, A-B Blazquez-Fernandez
CASE REPORT: A 70 year-old male patient with a history of radial keratotomy suffering from Fuchs' dystrophy and a cataract. The patient received a two-step surgery: lens phacoemulsification and intraocular lens implant, followed by descemet stripping automated endothelial keratoplasty in both eyes, four months later. There were no complications apart from a recurrent cystoid macular oedema in both eyes. The best corrected visual acuity was 20/40 both eyes, and the patient was satisfied...
December 8, 2016: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/27672593/toric-markers-assisted-implantation-of-the-scleral-fixated-intraocular-lens
#14
Hu-Ping Song, Bing-Yu Tian, Jing Peng
AIM: To evaluate the efficacy of toric intraocular lens markers-assisted implantation of the scleral-fixated intraocular lens (SFIOL). METHODS: From October 2010 to December 2013, all patients who had undergone secondary SFIOL implantation were assigned to group 1 and 2, in group 1 SFIOL was performed with the assist of radial keratotomy (RK)-marker, and in group 2 SFIOL was performed with the assisted of toric intraocular lens markers (T-and axis markers). Patients' demographic data and information on baseline preoperative visual acuity, indication for surgery and latest postoperative visual acuity were collected and analyzed...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27668956/significant-haze-after-photorefractive-keratectomy-in-a-cornea-with-previous-arcuate-keratotomy-june-consultation-1
#15
Marcony R Santhiago
No abstract text is available yet for this article.
June 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27647248/-finite-element-analysis-of-astigmatic-keratotomy-based-on-corneal-biomechanical-properties
#16
Z D Li, F J Bao, Q M Wang, J H Huang
OBJECTIVE: To establish a finite-element biomechanical model of astigmatic keratotomy, and to investigate the impact of surgical parameters on corneal deformation, stress distribution and astigmatism correction. METHODS: With Rhinoceros modeling and Abaqus finite element analysis software, a three-dimensional finite-element model of astigmatic cornea was developed, and surgical parameters such as incision optical zone, incision depth and length were varied. Postoperative corneal stress, apical deformation and astigmatism correction were assessed...
September 11, 2016: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/27598735/bilateral-small-incision-lenticule-extraction-smile-after-penetrating-keratoplasty
#17
Bu Ki Kim, Su Joung Mun, Dae Gyu Lee, Young Taek Chung
PURPOSE: To report a case of successful bilateral small incision lenticule extraction (SMILE) performed on a patient who had penetrating keratoplasty and astigmatic keratotomy in the right eye and penetrating keratoplasty in the left eye. METHODS: Case report. RESULTS: Astigmatic keratotomy was used to reduce astigmatism of the right eye because astigmatism was higher than the maximum correction limitation of SMILE. Bilateral SMILE was performed afterward...
August 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27580114/efficacy-of-bdellovibrio-bacteriovorus-109j-for-the-treatment-of-dairy-calves-with-experimentally-induced-infectious-bovine-keratoconjunctivitis
#18
Mélanie J Boileau, Rinosh Mani, Melanie A Breshears, Margi Gilmour, Jared D Taylor, Kenneth D Clinkenbeard
OBJECTIVE To determine the efficacy of Bdellovibrio bacteriovorus 109J for the treatment of calves with experimentally induced infectious bovine keratoconjunctivitis (IBK). ANIMALS 12 healthy dairy calves. PROCEDURES For each calf, a grid keratotomy was performed on both eyes immediately before inoculation with Moraxella bovis hemolytic strain Epp63-300 (n = 11 calves) or nonhemolytic strain 12040577 (1 calf). For each calf inoculated with M bovis Epp63-300, the eyes were randomly assigned to receive an artificial tear solution with (treatment group) or without (control group) lyophilized B bacteriovorus 109J...
September 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27496784/corneal-astigmatism-and-aberrations-after-combined-femtosecond-assisted-phacoemulsification-and-arcuate-keratotomy-two-year-results
#19
Tommy C Y Chan, Alex L K Ng, George P M Cheng, Zheng Wang, Victor C P Woo, Vishal Jhanji
PURPOSE: To investigate the stability of corneal astigmatism and higher-order aberrations after combined femtosecond-assisted phacoemulsification and arcuate keratotomy. DESIGN: Retrospective, interventional case series. METHODS: Surgery was performed using a VICTUS (Bausch & Lomb Inc, Dornach, Germany) platform. A single, 450-μm deep, arcuate keratotomy was paired at the 8-mm zone with the main phacoemulsification incision in the opposite meridian...
October 2016: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/27409468/comparison-of-newer-iol-power-calculation-methods-for-eyes-with-previous-radial-keratotomy
#20
MULTICENTER STUDY
Jack X Ma, Maolong Tang, Li Wang, Mitchell P Weikert, David Huang, Douglas D Koch
PURPOSE: To evaluate the accuracy of the optical coherence tomography-based (OCT formula) and Barrett True K (True K) intraocular lens (IOL) calculation formulas in eyes with previous radial keratotomy (RK). METHODS: In 95 eyes of 65 patients, using the actual refraction following cataract surgery as target refraction, the predicted IOL power for each method was calculated. The IOL prediction error (PE) was obtained by subtracting the predicted IOL power from the implanted IOL power...
July 1, 2016: Investigative Ophthalmology & Visual Science
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