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Scleral lens

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https://www.readbyqxmd.com/read/29899651/autologous-scleral-flap-technique-to-repair-exposed-sutures-after-transscleral-suture-fixation-of-an-intraocular-lens
#1
Aliyah Hadi Alameri, Donald Ural Stone
Exposure of the suture after transscleral suture fixation of posterior chamber intraocular lenses is a known late complication that typically requires intervention. Patch grafts of sclera, cornea, or pericardium have been described. We describe a novel autologous scleral flap to cover an exposed 10-0 polypropylene suture. This technique requires no exogenous graft material and avoids the risks of intraocular manipulation of the lens. Every effort should be made to avoid external exposure of the suture, but in cases that develop suture erosion, an autologous scleral flap may be a useful intervention...
January 2018: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/29807770/transient-corneal-epithelial-bullae-associated-with-large-diameter-scleral-lens-wear-a-case-series
#2
Veronica L Isozaki, Gloria B Chiu
With the increased fitting of scleral lenses by eye care practitioners, complications with lens wear need to be considered. Several prior studies have addressed complications specific to scleral lens wear and the incidence of hypoxia with extended wear, but few report the presence of epithelial bullae. This case series investigates three patients with differing ocular surface diseases, yet all developed transient epithelial bullae with concurrent large diameter scleral lens wear. These bullae appear to form due to weakened connections in the corneal epithelium at the level of basement membrane and Bowman's layer and flatten within minutes of lens removal...
May 25, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29804935/corneal-oedema-in-a-unilateral-corneal-graft-patient-induced-by-high-dk-mini-scleral-contact-lens
#3
Natalie C Guillon, Andrew Godfrey, David S Hammond
INTRODUCTION: Scleral contact lenses are increasingly becoming accepted as the method of choice for visual correction of the irregular cornea. As such, cases have surfaced which demonstrate complications arising from mini-scleral lenses. Identification of these issues and adjusting fitting techniques accordingly is necessary for reducing the risks associated with mini-scleral lens wear. CASE REPORT: A 58 year old Caucasian female was referred for rigid gas permeable contact lens fitting for correction of right irregular astigmatism post penetrating keratoplasty...
May 24, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29787490/clinical-performance-of-a-new-bitangential-mini-scleral-lens
#4
Henny M Otten, Bart J J J van der Linden, Esther-Simone Visser
SIGNIFICANCE: New bitangential mini-scleral lens designs provide a highly precise fit, follow the scleral shape, are comfortable to wear, and can correct residual astigmatism. This new scleral lens design complements the arsenal of medical contact lenses available to eye care practitioners. PURPOSE: The aim of this study was to evaluate the subjective and objective performance of a new mini-scleral lens design with a bitangential periphery. METHODS: In this observational study, data were collected for up to 15 months (median, 84 days; interquartile range, 76 days) from the left eyes of 133 patients fitted with this newly designed lens...
June 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29787488/effects-of-scleral-lens-tear-clearance-on-corneal-edema-and-post-lens-tear-dynamics-a-pilot-study
#5
Bo Tan, Yixiu Zhou, Tiffany L Yuen, Kristina Lin, Langis Michaud, Meng C Lin
SIGNIFICANCE: The present study with small-diameter scleral lenses (SLs) revealed that post-lens tear thickness (PoLTT) was significantly associated with post-lens tear mixing, but not with central corneal edema, after short-term SL wear. PURPOSE: The aim of this study was to investigate the influence of SL tear clearance (PoLTT) on central corneal thickness and post-lens tear dynamics during 5-hour lens wear. METHODS: Neophytes with no active ocular disease were fitted bilaterally with SLs (hofocon A; 15...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29787465/predictive-factors-for-proliferative-vitreoretinopathy-formation-after-uncomplicated-primary-retinal-detachment-repair
#6
Kunyong Xu, Eric K Chin, Steven R Bennett, David F Williams, Edwin H Ryan, Sundeep Dev, Robert A Mittra, Polly A Quiram, John B Davies, David Wilkin Parke, Herbert Culver Boldt, David R P Almeida
PURPOSE: To determine predictive factors of proliferative vitreoretinopathy (PVR) formation after uncomplicated primary retinal detachment repair. METHODS: Retrospective, single-center, case-control study of 74 consecutive patients with (37 eyes) and without (37 eyes) PVR formation after undergoing uncomplicated primary surgery for retinal detachment repair. Logistic regression was used to assess factors associated with PVR formation. RESULTS: Retinal detachment involving the macula was 4...
May 21, 2018: Retina
https://www.readbyqxmd.com/read/29784093/pigmentary-reaction-around-gore-tex-suture-in-a-scleral-fixated-intraocular-lens
#7
Xuejing Chen, Priya Sharma, Caroline R Baumal
No abstract text is available yet for this article.
June 2018: Ophthalmology
https://www.readbyqxmd.com/read/29780959/a-simple-lens-sparing-technique-to-treat-hypotonic-maculopathy-secondary-to-large-cyclodialysis
#8
Masayo Kimura, Tsutomu Yasukawa, Yuichiro Ogura
Purpose: Hypotonic maculopathy secondary to cyclodialysis often persists and causes irreversible visual loss despite a variety of treatments proposed. The purpose of this study is to report two cases with persistent hypotonic maculopathy due to a large cyclodialysis cleft treated with a simple, lens-sparing technique of external drainage, diathermy, and suturing under the placement of an infusion cannula. Observations: Both patients had sustained blunt trauma to one eye, causing persisting hypotonic maculopathy...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780938/management-of-giant-retinal-tear-and-retinal-detachment-in-a-patient-with-active-toxoplasmosis-retinochoroiditis
#9
Nathan L Scott, Jayanth Sridhar, Harry W Flynn
Purpose: To describe the management of a giant retinal tear with retinal detachment in a patient with active toxoplasmosis retinochoroiditis. Results: While receiving systemic medications for toxoplasmosis, the patient underwent scleral buckling, pars plana vitrectomy, and C3F8 gas tamponade without removal of the lens. At last follow-up, best corrected visual acuity was 20/20 with an attached retina and the toxoplasmosis lesion was inactive. Conclusions: and Importance: Using modern surgical techniques, anatomic and clinical success is possible during active retinochoroiditis...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29778105/trailing-haptic-first-modification-of-double-needle-intrascleral-haptic-fixation-technique
#10
Dooho Brian Kim
The Yamane double-needle intrascleral haptic fixation technique for posterior chamber intraocular lens (IOL) fixation in the setting of absent or inadequate capsule support is a minimally invasive IOL fixation technique that requires scleral incisions using needles to externalize the IOL haptics. Despite being a seemingly easy and intuitive procedure, there are significant challenges when learning this technique. The most difficult step is threading the trailing haptic with the needle for fixation. If using an IOL with weak haptics, this step can result in haptic kink or breakage, which renders the haptics useless for this technique and necessitating explantation of the IOL...
April 2018: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29765780/outcomes-and-complications-of-scleral-fixated-intraocular-lens-combined-with-ahmed-tube-surgery
#11
Nikhel Sachdev, Maria Cecilia Aquino, Seng Chee Loon, Yiong Huak Chan, Paul Chew, Victor Koh
Background: To evaluate the outcome and complications of transscleral suture-fixated posterior chamber intraocular lens (PCIOL) implantation combined with Ahmed glaucoma valve (AGV) surgery in Asian eyes. Design: This was a retrospective study that included 22 eyes from 22 participants. The surgeries were performed at Singapore's National University Hospital. Participants underwent an Ahmed tube surgery, together with transscleral suture-fixated posterior chamber intraocular lens...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29755825/bilateral-asymmetric-rhegmatogenous-retinal-detachment-in-a-patient-with-stickler-syndrome
#12
Caner Öztürk, Almila Sarıgül Sezenöz, Gürsel Yılmaz, İmren Akkoyun
Here we present the long-term anatomical and visual outcomes of bilateral asymmetric rhegmatogenous retinal detachment repair in a patient with Stickler syndrome. A 17-year-old girl presented with decreased visual acuity in both eyes for more than one year. Her best-corrected visual acuity (BCVA) was 0.1 in the right eye and 0.05 in the left eye. Slit-lamp anterior segment examination revealed subcapsular cataract in both eyes. Fundus examination showed bilateral rhegmatogenous retinal detachment, chronic retinal detachment accompanied by multiple retinal holes, tears and membranous fibrillary vitreous in the peripheral retina...
April 2018: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/29728657/major-ocular-trauma-in-taiwan-2002-2004-versus-2012-2014
#13
Yi-Sheng Chang, Yu-Ti Teng, Yi-Hsun Huang, Mei-Ling Liu, Jia-Horung Hung, Sheng-Min Hsu, Fu-Chin Huang, Min-Hsiu Shih, Wan-Ju Chen, Chun-Chieh Lai, Shu-Fang Hsiao, Shih-Hao Wang, Sung-Huei Tseng
We investigated the temporal changes in major eye injuries in Taiwan by reviewing the medical records of all patients with ocular trauma hospitalized at the National Cheng Kung University Hospital during 2002-2004 and 2012-2014. A total of 169 eyes (161 patients) during 2002-2004 and 121 eyes (120 patients) during 2012-2014 were enrolled (mean ± SD age: 41.9 ± 20.8 years in 2002-2004, and 51.8 ± 19.3 years in 2012-2014). Males accounted for ~75% of patients. The most frequent injury-causing object was metallic material (~24%), and blunt traumas were most frequently attributable to traffic accidents and falls...
May 4, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29728290/posterior-cornea-and-thickness-changes-after-scleral-lens-wear-in-keratoconus-patients
#14
Maria Serramito, Carlos Carpena-Torres, Jesús Carballo, David Piñero, Michael Lipson, Gonzalo Carracedo
PURPOSE: To evaluate the changes in the corneal thickness, anterior chamber depth and posterior corneal curvature and aberrations after scleral lens wear in keratoconus patients with and without intrastromal corneal ring segments (ICRS). METHODS: Twenty-six keratoconus subjects (36.95 ± 8.95 years) were evaluated after 8 h of scleral lens wear. The subjects were divided into two groups: those with ICRS (ICRS group) and without ICRS (KC group). The study variables evaluated before and immediately after scleral lens wear included corneal thickness evaluated in different quadrants, posterior corneal curvature at 2, 4, 6 and 8 mm of corneal diameter, posterior corneal aberrations for 4, 6 and 8 mm of pupil size and anterior chamber depth...
May 1, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29691925/experimental-myopia-increases-and-scleral-crosslinking-using-genipin-inhibits-cyclic-softening-in-the-tree-shrew-sclera
#15
Alexander M Levy, Massimo A Fazio, Rafael Grytz
PURPOSE: Myopia progression is thought to involve biomechanical weakening of the sclera, which leads to irreversible deformations and axial elongation of the eye. Scleral crosslinking has been proposed as a potential treatment option for myopia control by strengthening the mechanically weakened sclera. The biomechanical mechanism by which the sclera weakens during myopia and strengthens after crosslinking is not fully understood. Here, we assess the effect of lens-induced myopia and exogenous crosslinking using genipin on the inelastic mechanical properties of the tree shrew sclera measured by cyclic tensile tests...
May 2018: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/29688848/combined-23-gauge-transconjunctival-vitrectomy-and-scleral-fixation-of-intraocular-lens-without-conjunctival-dissection-in-managing-lens-complications
#16
Ling Yeung, Nan-Kai Wang, Wei-Chi Wu, Kuan-Jen Chen
BACKGROUND: To evaluate the safety and efficacy of combined 23-gauge transconjunctival pars plana vitrectomy and scleral fixation of intraocular lens (IOL) without conjunctival dissection. METHODS: A retrospective study in Chang Gung Memorial Hospital, Keelung and Taoyuan, Taiwan. Patients receiving combined 23-gauge transconjunctival pars plana vitrectomy and scleral fixation of IOL without conjunctival dissection were enrolled. The ocular findings, causes of lens complication, surgical procedures, type of IOL used, and complications were documented...
April 23, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29685773/dynamic-tracking-of-purkinje-images-for-the-comparison-of-pseudophakodonesis-between-in-the-bag-and-secondary-fixated-intraocular-lenses
#17
Dhivya Ashok Kumar, Amar Agarwal, Nivean Madhivanan, Soundari Sivagnanam, Radika Chandrasekar, Srinivasan Venugopal
PURPOSE: To compare the pseudophakodonesis of in-the-bag intraocular lens (IOL) and a secondary fixated IOL by tracking the Purkinje image IV. SETTING: Dr. Agarwal's Eye Hospital and Eye Research Centre, Chennai, India. DESIGN: Prospective case series. METHODS: The IOL movement was recorded via slitlamp videography (DC3), streamed in video editor (Pinnacle), and evaluated by ImageJ analysis. The positional difference of Purkinje IV in relation to the stationary image Purkinje I at 3 random timeframes was measured...
April 2018: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29667423/suturing-technique-for-scleral-fixation-of-toric-intraocular-lens-in-the-traumatic-aphakic-eye-with-corneal-astigmatism
#18
Qintuo Pan, Zhengwei Yang, Xiaomeng Chen, Wenlong Wei, Zhisheng Ke, Ding Chen, Fang Huang, Junyong Cai, Zhenquan Zhao
PURPOSE: To describe the clinical outcomes of traumatic aphakic eyes with corneal astigmatism after using a novel technique for toric intraocular lens suture fixation. METHODS: In total, 12 eyes of 12 patients who underwent a new scleral suture fixation technique of one-piece toric intraocular lens (SN6AT series, Alcon Inc., TX, USA) were included in our retrospective study. Preoperative patient status, postoperative visual acuity and refractive outcomes, postoperative intraocular lens rotation, tilt, decentration, and complications were analyzed...
April 1, 2018: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29643798/rapid-capsular-contraction-with-secondary-intraocular-lens-dislocation-associated-with-unspecified-rod-cone-dystrophy-a-case-report
#19
Jocelyn Lam, Bradley Sifrig, Hoon Jung
Purpose: We report an unusual case of rapid and severe anterior capsular contraction associated with secondary intraocular lens (IOL) dislocation following cataract surgery in a patient with unspecified rod-cone dystrophy. Case Report: A 68-year-old woman with a history of uncharacterized bilateral rod-cone dystrophy presented with blurry vision 1 month after cataract surgery. Best corrected visual acuity was 20/40 in the operative eye. Slit-lamp exam showed severe anterior capsular phimosis limiting view of the fundus...
January 2018: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/29615280/comparison-of-ocular-wavefront-aberrations-in-subluxated-lenses-before-and-after-lens-extraction-with-intraocular-lens-implantation
#20
Samaresh Srivastava, Vaishali Vasavada, Viraj Vasavada, Shail Vasavada, Mamidipudi R Praveen, Rajendra Reddy, Abhay R Vasavada
PURPOSE: To compare the change in ocular higher-order wavefront aberrations (HOAs), visual acuity, and modulation transfer function (MTF) after lens extraction with intraocular lens (IOL) implantation in patients with subluxated lenses. SETTING: Iladevi Cataract & IOL Research Centre, Ahmedabad, India. DESIGN: Prospective case series. METHODS: Eyes with subluxated lenses having lens extraction with IOL implantation were included...
March 2018: Journal of Cataract and Refractive Surgery
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