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https://www.readbyqxmd.com/read/28210176/femtosecond-astigmatic-keratotomy-for-postkeratoplasty-astigmatism
#1
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
#2
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
#3
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/fuch-s-dystrophy-associated-with-radial-keratotomy-lamellar-or-perforating-keratoplasty
#4
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 Fuch's 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 7, 2016: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/27672593/toric-markers-assisted-implantation-of-the-scleral-fixated-intraocular-lens
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
https://www.readbyqxmd.com/read/27304607/femtosecond-laser-assisted-cataract-surgery-after-radial-keratotomy
#12
Rozina Noristani, Tim Schultz, H Burkhard Dick
PURPOSE: To determine the efficacy of femtosecond laser-assisted cataract surgery in eyes with radial keratometry. METHODS: Femtosecond laser-assisted cataract surgery was performed in 3 patients (6 eyes) who had six to eight radial keratotomy incisions. RESULTS: In all cases, the anterior segment of the eye was visualized with integrated three-dimensional optical coherence tomography and it was possible to position the laser corneal incisions between the radial keratotomy incisions...
June 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27150121/long-term-follow-up-of-astigmatic-keratotomy-for-corneal-astigmatism-after-penetrating-keratoplasty
#13
Daniel Böhringer, Nina Dineva, Philip Maier, Florian Birnbaum, Thomas Kirschkamp, Thomas Reinhard, Philipp Eberwein
PURPOSE: To report the long-term stability of paired arcuate corneal keratotomies (AKs) in patients with high regular postpenetrating keratoplasty astigmatism. METHODS: Retrospective chart review of best-corrected visual acuity, refraction and keratometric values of 41 eyes with AK between 2003 and 2012. RESULTS: Magnitude of median target induced astigmatism vector was 9.2 dioptres (Dpt). We reached a median magnitude of surgically induced astigmatism vector of 9...
November 2016: Acta Ophthalmologica
https://www.readbyqxmd.com/read/27143847/advances-in-femtosecond-laser-technology
#14
REVIEW
Thais Pinheiro Callou, Renato Garcia, Adriana Mukai, Natalia T Giacomin, Rodrigo Guimarães de Souza, Samir J Bechara
Femtosecond laser technology has become widely adopted by ophthalmic surgeons. The purpose of this study is to discuss applications and advantages of femtosecond lasers over traditional manual techniques, and related unique complications in cataract surgery and corneal refractive surgical procedures, including: LASIK flap creation, intracorneal ring segment implantation, presbyopic treatments, keratoplasty, astigmatic keratotomy, and intrastromal lenticule procedures.
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27138639/cornea-donors-who-have-had-prior-refractive-surgery-data-from-the-eye-bank-association-of-america
#15
REVIEW
Robert A Fargione, Prabjot Channa
PURPOSE OF REVIEW: Millions of Americans have undergone refractive surgeries, including radial keratotomy, photorefractive keratectomy, and laser-assisted in situ keratomileusis. Eye Bank Association of America medical standards do not permit corneas from patients who have undergone refractive procedures to be used in penetrating keratoplasty, anterior lamellar keratoplasty, or tectonic grafting procedures. Such corneas, can, however, be used for endothelial corneal transplantation. The objective of this article is to provide an update on current trends for the screening and usage of corneas that have undergone refractive surgery...
July 2016: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27138638/infections-after-refractive-surgery
#16
REVIEW
Zeeshan Haq, Asim V Farooq, Andrew J W Huang
PURPOSE OF REVIEW: The purpose of the review is to provide a summary of the recent literature concerning infections after refractive surgery pertinent to each procedure category. RECENT FINDINGS: New data from a large retrospective study suggest that the incidence of post-laser assisted in-situ keratomileusis infectious keratitis is declining. Additionally, recent case studies have reported viral, fungal, and Acanthamoeba pathogens. Corneal collagen cross-linking is emerging as an alternative therapeutic option for early stage post-LASIK infectious keratitis...
July 2016: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27113878/development-of-a-nomogram-for-femtosecond-laser-astigmatic-keratotomy-for-astigmatism-after-keratoplasty
#17
Ryan M St Clair, Anushree Sharma, David Huang, Fei Yu, Yakov Goldich, David Rootman, Sonia Yoo, Florence Cabot, Jason Jun, Lijun Zhang, Anthony J Aldave
PURPOSE: To develop a nomogram for femtosecond laser astigmatic keratotomy (AK) to treat post-keratoplasty astigmatism. SETTING: Three academic medical centers. DESIGN: Retrospective interventional case series. METHODS: A review of post-keratoplasty femtosecond laser AK was performed. Uncorrected (UDVA) and corrected (CDVA) distance visual acuities, manifest refraction, and keratometry were recorded preoperatively and 1, 3, 6, and 12 months postoperatively...
April 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27050357/two-cases-of-ultrathin-descemet-stripping-automated-endothelial-keratoplasty-utilizing-a-graft-that-had-undergone-radial-keratotomy
#18
Yoav Nahum, Diego Ponzin, Massimo Busin
This is a report of two cases in which tissue that had undergone radial keratotomy (RK) was utilized for double-pass ultrathin Descemet stripping automated endothelial keratoplasty (UT-DSAEK). Postoperative slit-lamp examination, visual acuity, anterior segment optical coherence tomography, and specular microscopy were available 30 months after surgery. Both corneas from a donor, who had undergone RK several years before his demise, and were otherwise suitable for endothelial keratoplasty were prepared for UT-DSAEK using double-pass dissection using first a 300 mm microkeratome head and then a 130μm microkeratome head (ALTK system, Moria, Antony, France)...
February 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27035074/femtosecond-laser-assisted-keratotomy
#19
REVIEW
Laura A Vickers, Preeya K Gupta
PURPOSE OF REVIEW: To review the recent literature on femtosecond laser-assisted astigmatic keratotomy and its applications to naturally occurring as well as postoperative astigmatism in multiple settings. RECENT FINDINGS: Femtosecond laser technology has improved the safety and efficacy of astigmatic keratotomy in the treatment of astigmatism. Intrastromal femtosecond astigmatic keratotomy (ISAK) may have even lower complication rates, though long-term results are still being established...
July 2016: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27027621/stability-of-keratometric-astigmatism-after-non-penetrating-femtosecond-laser-intrastromal-astigmatic-keratotomy-performed-during-laser-cataract-surgery
#20
COMPARATIVE STUDY
Alexander C Day, Julian D Stevens
PURPOSE: To investigate the stability of keratometric astigmatism after femtosecond laser intrastromal astigmatic keratotomy (ISAK) performed during laser cataract surgery. METHODS: In this prospective comparative case series, data were collected from patients during follow-up 1 and 6 months after laser-assisted cataract surgery. Corneal keratometry was measured preoperatively and postoperatively by Topcon KR8100PA topographer-autorefractor (Topcon Corporation, Tokyo, Japan)...
March 2016: Journal of Refractive Surgery
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