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https://www.readbyqxmd.com/read/28337067/late-spontaneous-resolution-of-a-double-anterior-chamber-post-deep-anterior-lamellar-keratoplasty
#1
Andrea Passani, Angela Tindara Sframeli, Pasquale Loiudice, Marco Nardi
A 31-year-old healthy male underwent deep anterior lamellar keratoplasty with big-bubble technique for treatment of keratoconus in his right eye. One week after surgery, he presented with detachment of the endothelium-Descemet complex with formation of a double anterior chamber, despite the apparent absence of an intraoperative Descemet membrane rupture. A subsequent intervention with the intent to relocate the corneal graft button was not effective, because the detachment appeared again one day later. The authors hypothesized that, at the time of the stromal dissection with big bubble technique, a small amount of air penetrated into the anterior chamber, creating a false pathway through the trabecular meshwork...
January 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28336058/large-9-mm-deep-anterior-lamellar-keratoplasty-with-clearance-of-a-6-mm-optical-zone-optimizes-outcomes-of-keratoconus-surgery
#2
Massimo Busin, Pia Leon, Yoav Nahum, Vincenzo Scorcia
PURPOSE: To evaluate the outcomes of a 9-mm deep anterior lamellar keratoplasty (DALK) with removal of the deep stroma limited to the central 6-mm optical zone. DESIGN: Prospective, noncomparative, interventional case series. PARTICIPANTS: A total of 80 consecutive keratoconic eyes without deep stromal scarring, with at least 1 postoperative examination 1 month after complete suture removal. INTERVENTION: A standardized DALK was performed, including (1) deep trephination of the recipient bed 450 to 550 μm in depth and 9 mm in diameter; (2) pneumatic dissection; (3) debulking of approximately 80% of the anterior stroma; (4) removal of the deep stroma (bubble roof) from a central 6-mm optical zone; and (5) transplantation of a 9-mm anterior corneal lamella cut by microkeratome-assisted dissection (400-μm head) and sutured with a double running 10-0 nylon suture...
March 20, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28328727/strategies-for-deep-anterior-lamellar-keratoplasty-after-hydrops-in-keratoconus
#3
Matthias Fuest, Jodhbir S Mehta
Corneal hydrops affects approximately 2.5% of keratoconus (KC) cases, predominantly young males approximately 25 years of age with steep cones. Often, patients are left with a vision-reducing corneal scar frequently necessitating surgical treatment. Penetrating keratoplasty (PK) has worse survival outcomes in hydrops than in general KC cases. Deep anterior lamellar keratoplasty (DALK) is a nonpenetrating technique believed to achieve equal or better outcomes in visual acuity, graft survival, endothelial rejection rates, and endothelial cell survival in comparison with PK, while maintaining globe integrity and the patients' Descemet membrane (DM) and endothelium...
March 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28326192/differences-in-surgical-management-of-corneal-perforations-measured-over-six-years
#4
Katarzyna Krysik, Dariusz Dobrowolski, Anita Lyssek-Boron, Judyta Jankowska-Szmul, Edward A Wylegala
Purpose. To report the surgical approach, anatomical and functional results, and complications in the group of patients with corneal perforation. Materials and Methods. 247 eyes with corneal perforation were operated on between January 2010 and July 2016. The three surgical procedures, dependent on size and location of perforation, were performed: full-sized penetrating keratoplasty, corneoscleral patch graft, and anterior lamellar keratoplasty. The eyes underwent the minimum 6-month follow-up visit. Results...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28324243/fungal-keratitis-secondary-to-trametes-betulina-a-case-report-and-review-of-literature
#5
Joshua S Hardin, Deanna A Sutton, Nathan P Wiederhold, James Mele, Sunali Goyal
PURPOSE: We report the first case of human infection and keratitis secondary to Trametes betulina, a rare filamentous fungus. METHODS: Clinical examination including external and slit-lamp examination and corneal scrapings with microbiologic evaluation were performed on a patient with chronic allergic conjunctivitis, entropion and a long-standing corneal ulcer resistant to treatment. RESULTS: The culture from the corneal scraping revealed a basidiomycetous fungus which was submitted for identification...
March 21, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28318831/refractory-aqueous-misdirection-syndrome-a-possible-complication-of-penetrating-keratoplasty
#6
I Gama, W M Rodrigues, H P Filipe, M Y Faria, L D Almeida
CLINICAL CASE: An 85 year-old woman presented with a flat anterior chamber of the left eye, severe ocular hypertension, and a normal ultrasound examination in the day following a penetrating keratoplasty (PK). The clinical status did not respond to maximum medical therapy, laser posterior capsulotomy, anterior hyaloidotomy, and complete 23 G vitrectomy. The patient refused further intervention, and light perception was lost after 6 months of follow-up. DISCUSSION: This is the first report of refractory aqueous misdirection syndrome following primary PK...
March 16, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28317666/transepithelial-crosslinking-retreatment-of-progressive-corneal-ectasia-unresponsive-to-classic-crosslinking
#7
Roy S Rubinfeld, Rachel H Epstein, Parag A Majmudar, Deborah Kim, Michael Choi, Randy J Epstein
A 41-year-old man presented 10 years after uneventful laser in situ keratomileusis (LASIK) with symptomatic post-LASIK ectasia. He had treatment with the classic Dresden epithelium-off technique and presented 4 years later with progression of the ectasia. He was subsequently retreated with conductive keratoplasty (CK) followed by a new proprietary epithelium-on corneal collagen crosslinking (CXL) procedure using a proprietary transepithelial riboflavin formulation and delivery system on the following day...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28317665/preparation-of-ultrathin-grafts-for-descemet-stripping-endothelial-keratoplasty-with-a-single-microkeratome%C3%A2-pass
#8
Vito Romano, Bernhard Steger, Jayavani Myneni, Mark Batterbury, Colin E Willoughby, Stephen B Kaye
We present a technique to achieve ultrathin Descemet-stripping automated endothelial keratoplasty (DSAEK). Using a simple method of controlling artificial anterior chamber pressure and drying the corneal surface, it was possible to thin the donor cornea at a rate of 11 μm a minute. When the donor cornea was between 500 μm and 510 μm, a single pass was made using a 350 μm microkeratome head followed by a peripheral dissection. The resulting mean graft thickness was 83.2 μm ± 14.9 (SD) (range 50 to 98 μm) with a mean peripheral graft edge thickness of 106...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28316189/-noteworthy-and-controversial-problems-of-deep-anterior-lamellar-keratoplasty
#9
H Gao
Corneal transplant is the main treatment for blindness caused by corneal diseases. The common methods of corneal transplant include penetrating keratoplasty and lamellar keratoplasty. With the advances of microsurgical instruments and technology in recent years, deep anterior lamellar keratoplasty (DALK) has gradually increased. Compared with conventional penetrating keratoplasty, the optical effects of DALK are not much different, but DALK has fewer complications. So DALK is expected to become the mainstream of corneal transplantation...
March 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28314955/outcome-of-descemet-stripping-automated-endothelial-keratoplasty-in-eyes-with-an-ahmed-glaucoma-valve
#10
Patrick J Chiam, Robert Cheeseman, Vivian W Ho, Vito Romano, Anshoo Choudhary, Mark Batterbury, Stephen B Kaye, Colin E Willoughby
PURPOSE: The purpose was to investigate the survival of Descemet stripping automated endothelial keratoplasty (DSAEK) in eyes with an Ahmed glaucoma valve (AGV). METHODS: The study had a retrospective case-series of patients with an AGV in the anterior chamber undergoing a DSAEK. Included in the analysis were graft size, number of previous operations, post-operative glaucoma medications, post-operative intraocular pressure (IOP) control, graft size and donor factors (age, endothelial cell density, and post-mortem time)...
March 17, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28306600/modeling-endothelial-cell-loss-after-descemet-stripping-endothelial-keratoplasty-data-from-5-years-of-follow-up
#11
Mark A P Fajgenbaum, Emma J Hollick
PURPOSE: To report 5-year outcomes for graft survival and endothelial cell survival after Descemet stripping endothelial keratoplasty (DSEK) including regression modeling for cell survival over time. METHODS: This is a single-institution, retrospective, consecutive interventional series of 210 primary DSEK grafts operated for low-to-moderate risk indications, specifically Fuchs dystrophy and bullous keratopathy. Primary outcomes were cumulative graft survival and % endothelial cell loss from 3 months through 5 years; the secondary outcome was to trend endothelial cell density over time by least-squares and mixed nonlinear modeling...
March 16, 2017: Cornea
https://www.readbyqxmd.com/read/28303370/comparison-of-graft-survival-following-penetrating-keratoplasty-and-descemet-s-stripping-endothelial-keratoplasty-in-eyes-with-a-glaucoma-drainage-device
#12
Shawn M Iverson, Oriel Spierer, George C Papachristou, William J Feuer, Wei Shi, David S Greenfield, Terrence P O'Brien
PURPOSE: To compare corneal graft survival rates after penetrating keratoplasty (PK) and Descemet's stripping endothelial keratoplasty (DSEK) in patients with a glaucoma drainage device (GDD) or medically managed glaucoma. METHODS: A retrospective chart review was conducted on consecutive patients who underwent primary PK or primary DSEK. Inclusion criteria consisted of eyes with a diagnosis of glaucoma prior to corneal transplantation and a minimum of 6 months of follow-up...
March 16, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28300735/comparison-of-femtosecond-laser-assisted-descemetic-and-predescemetic-lamellar-keratoplasty-for-keratoconus
#13
Yan Lu, Ana Beatriz Diniz Grisolia, Yi-Rui Ge, Chun-Yan Xue, Qian Cao, Li-Ping Yang, Zhen-Ping Huang
PURPOSE: The purpose of this study is to compare the outcomes following femtosecond laser-assisted deep anterior lamellar keratoplasty (DALK) with 75% of stromal dissection (predescemetic group) and femtosecond laser-assisted DALK using big-bubble technique with total stromal resection (descemetic group) for the treatment of keratoconus. SUBJECTS AND METHODS: Twenty eyes of 17 patients with keratoconus were studied. There were 10 eyes of 9 patients in predescemetic group and 10 eyes of 8 patients in descemetic group...
January 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28298316/paediatric-infectious-keratitis-a-case-series-of-107-children-presenting-to-a-tertiary-referral-centre
#14
Julia Dutra Rossetto, Kara M Cavuoto, Carla J Osigian, Ta Chen Peter Chang, Darlene Miller, Hilda Capo, Oriel Spierer
BACKGROUND/AIMS: Corneal ulcers can result in severe visual impairment in children. The recent trends of paediatric microbial ulcerative keratitis in the USA are unknown. The purpose of this study is to report the risk factors, microbiological profile and treatment outcomes of paediatric microbial keratitis in South Florida. METHODS: A university-based tertiary eye care centre retrospective case series between 1992 and 2015. Medical records of 107 paediatric patients (age <18 years) with the diagnosis of microbial ulcerative keratitis were analysed...
March 15, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28297036/wide-field-landers-keratoprothesis-in-various-combined-corneal-and-vitreoretinal-problems-twelve-month-results
#15
Ziya Kapran, Abdullah Ozkaya, Gurkan Erdogan, Yalcin Karakucuk, Tugba Aydogan Gezginaslan, Irfan Perente, Muhittin Taskapili
BACKGROUND AND OBJECTIVE: To investigate the outcomes of combined pars plana vitrectomy (PPV), transient keratoprosthesis (TKP), and penetrating keratoplasty (PKP) in patients with coexisting corneal and vitreoretinal diseases. PATIENTS AND METHODS: Patients who underwent PPV, TKP, and PKP were included. The main outcome measures were change in visual acuity (VA), clarity of the graft, and retinal attachment. RESULTS: Twenty eyes were included...
March 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28282413/glaucoma-associated-with-iridocorneal-endothelial-syndrome-in-203-indian-subjects
#16
Premanand Chandran, Harsha L Rao, Anil K Mandal, Nikhil S Choudhari, Chandra S Garudadri, Sirisha Senthil
PURPOSE: To report the demographic profile, clinical features, and prevalence of glaucoma and its management in patients with Iridocorneal endothelial (ICE) syndrome. METHODS: Retrospective review of 203 consecutive subjects with ICE syndrome at a tertiary eye care centre between January 1988 and June 2013. RESULTS: ICE syndrome was present in 223 eyes of 203 subjects, 124 (61%) were female and 79 (39%) were male. The median age at presentation was 43 years (1st (Q1) and 3rd (Q3) quartile; 34, 51 years)...
2017: PloS One
https://www.readbyqxmd.com/read/28280636/the-effect-of-high-intensity-focused-ultrasound-keratoplasty-on-rabbit-anterior-segment
#17
Menglei Wang, Meixuan Li, Pisong Yan, Qiang Luo, Yu Zhang, Zhiyu Du
Purpose. To evaluate the safety of high-intensity focused ultrasound keratoplasty as a treatment for presbyopia by examining its effect on the rabbit anterior segment. Methods. The right corneas of 36 New Zealand rabbits were treated with HIFU keratoplasty. The animals were sacrificed at 1, 7, 15, 30, 60, and 90 days after operation. Collagen type I, MMP-2, and MMP-9 were evaluated using immunohistochemistry. For the detection of apoptosis, the TUNEL method was applied. The SOD and MDA levels were analyzed with assay kits...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28275607/intracorneal-and-intraocular-invasion-of-ocular-surface-squamous-neoplasia-after-intraocular-surgery-report-of-two-cases-and-review-of-the-literature
#18
Juan C Murillo, Anat Galor, Michael C Wu, Natasha K Kye, James Wong, Ibrahim O Ahmed, Madhura Joag, Nabeel Shalabi, William Lahners, Sander Dubovy, Carol L Karp
PURPOSE: The aim of this paper was to describe 2 cases of ocular surface squamous neoplasia (OSSN) of the conjunctiva with intracorneal and intraocular extension following intraocular surgery. METHODS: We conducted a clinical pathological retrospective case series. RESULTS: Case 1 underwent cataract surgery in the setting of an unnoticed adjacent OSSN. An excisional biopsy with cryotherapy and intraoperative mitomycin C was subsequently performed, confirming OSSN...
January 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28271013/ultrahigh-resolution-oct-imaging-of-the-human-cornea
#19
René M Werkmeister, Sabina Sapeta, Doreen Schmidl, Gerhard Garhöfer, Gerald Schmidinger, Valentin Aranha Dos Santos, Gerold C Aschinger, Isabella Baumgartner, Niklas Pircher, Florian Schwarzhans, Anca Pantalon, Harminder Dua, Leopold Schmetterer
We present imaging of corneal pathologies using optical coherence tomography (OCT) with high resolution. To this end, an ultrahigh-resolution spectral domain OCT (UHR-OCT) system based on a broad bandwidth Ti:sapphire laser is employed. With a central wavelength of 800 nm, the imaging device allows to acquire OCT data at the central, paracentral and peripheral cornea as well as the limbal region with 1.2 µm x 20 µm (axial x lateral) resolution at a rate of 140 000 A-scans/s. Structures of the anterior segment of the eye, not accessible with commercial OCT systems, are visualized...
February 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28264217/descemet-membrane-endothelial-keratoplasty-dmek-in-the-presence-of-an-iris-prosthesis
#20
N Gerber-Hollbach, D Goldblum
No abstract text is available yet for this article.
March 6, 2017: Klinische Monatsblätter Für Augenheilkunde
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