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Scleral lens

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https://www.readbyqxmd.com/read/28328725/region-specific-changes-in-postlens-fluid-reservoir-depth-beneath-small-diameter-scleral-lenses-over-2-hours
#1
Cherie B Nau, Muriel M Schornack
OBJECTIVES: Scleral lenses settle on the eye with time, and the depth of the postlens fluid reservoir decreases. We measured changes in central, superior, inferior, temporal, and nasal clearance beneath a small-diameter scleral lens after 2 hr of lens wear in healthy eyes. METHODS: Thirty-one participants (age, mean±SD, 29±7 years) with no history of eye disease or scleral lens wear were fitted with a 15-mm scleral lens in 1 eye. Scheimpflug images were acquired by a camera system within 5 min of lens placement and again after 2 hr of continuous lens wear...
March 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28298707/outcome-of-primary-rhegmatogenous-retinal-detachment-surgery-in-a-tertiary-referral-centre-in-northern-ireland-a-regional-study
#2
Michael A Mikhail, George Mangioris, Giuseepe Casalino, Stuart McGimpsey, James Sharkey, Richard Best, Wing C Chan
PURPOSE: To report the primary and final success, functional outcome and complication rates of patients with primary rhegmatogenous retinal detachment (RRD) who underwent retinal detachment surgery in a tertiary referral centre in Northern Ireland. VENUE: Vitreoretinal service, Royal Victoria Hospital, Belfast, Northern Ireland. METHODS: This is a retrospective case series of all patients who underwent primary RRD repair between 1st of January 2013 and 31st of December 2013...
January 2017: Ulster Medical Journal
https://www.readbyqxmd.com/read/28295635/quality-of-life-and-handling-experience-with-the-prose-device-an-indian-scenario
#3
Pradipta Bhattacharya, Rajeswari Mahadevan
BACKGROUND: PROSE (prosthetic replacement of ocular surface ecosystem) device is a custom-designed, corneal vaulting scleral contact lens, which is used in the treatment of irregular corneal conditions to improve vision and comfort. The present study aimed at assessing the success of the PROSE device in an Indian scenario in terms of change in quality of life and to understand the handling issues related to the device use. METHODS: Thirty-two subjects with various irregular corneal conditions meeting the inclusion criteria were included in the study...
March 12, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28271229/characteristics-of-patients-with-spontaneous-dislocation-of-in-the-bag-intraocular-lens-after-pars-plana-vitrectomy
#4
Takayuki Koike, Takayuki Baba, Tomohiro Nizawa, Toshiyuki Oshitari, Shuichi Yamamoto
PURPOSE: To determine the characteristics of eyes with late in-the-bag dislocation of an intraocular lens (IOL) after pars plana vitrectomy (PPV). METHODS: Fourteen eyes of 14 patients with a dislocated IOL after PPV were studied retrospectively. The data collected from the medical charts included the age, sex, history of eye diseases, axial length, and interval from PPV to time of IOL dislocation. The surgical procedures used during the PPV were also recorded. RESULTS: Seven eyes had undergone PPV for rhegmatogenous retinal detachment; 6 eyes, for proliferative diabetic retinopathy; and 1 eye, for retinal vein occlusion...
March 7, 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28268323/design-simulation-and-evaluation-of-uniform-magnetic-field-systems-for-head-free-eye-movement-recordings-with-scleral-search-coils
#5
Karin Eibenberger, Bernhard Eibenberger, Michele Rucci
The precise measurement of eye movements is important for investigating vision, oculomotor control and vestibular function. The magnetic scleral search coil technique is one of the most precise measurement techniques for recording eye movements with very high spatial (≈ 1 arcmin) and temporal (>kHz) resolution. The technique is based on measuring voltage induced in a search coil through a large magnetic field. This search coil is embedded in a contact lens worn by a human subject. The measured voltage is in direct relationship to the orientation of the eye in space...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28243024/outcomes-of-cataract-surgery-following-treatment-for-retinoblastoma
#6
Hyeong Min Kim, Byung Joo Lee, Jeong Hun Kim, Young Suk Yu
PURPOSE: To evaluate the long-term visual outcomes and complications of cataract surgery in eyes previously treated for retinoblastoma. METHODS: We reviewed the medical records of patients who underwent cataract extraction and intraocular lens implantation at Seoul National University Children's Hospital for a secondary cataract that developed after retinoblastoma treatment. RESULTS: During the period between 1990 and 2014, 208 eyes of 147 patients received eye-salvaging treatment (radiotherapy, chemotherapy, and local therapy) for retinoblastoma at Seoul National University Children's Hospital...
February 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/28237152/patient-comfort-and-visual-outcomes-of-mini-scleral-contact-lenses
#7
Peng Yan, Mustafa Kapasi, Ronan Conlon, Joshua C Teichman, Season Yeung, Yelin Yang, Setareh Ziai, Kashif Baig
OBJECTIVE: To evaluate short-term visual outcome, patient acceptance, and tolerance of mini-scleral contact lenses (SCLs) in the management of various corneal pathologies. DESIGN: Retrospective case series. PARTICIPANTS: Thirty-two patients (40 eyes) who received mini-SCLs. METHODS: Single-centre retrospective case series, between February 2010 and January 2013, of 32 patients (40 eyes) with various corneal pathologies who were offered either Maxim 5R, Maxim 7, or Maxim 7 × 11 mini-SCLs for nonsurgical optimization of visual correction...
February 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28226484/design-simulation-and-evaluation-of-uniform-magnetic-field-systems-for-head-free-eye-movement-recordings-with-scleral-search-coils
#8
Karin Eibenberger, Bernhard Eibenberger, Michele Rucci, Karin Eibenberger, Bernhard Eibenberger, Michele Rucci, Bernhard Eibenberger, Karin Eibenberger, Michele Rucci
The precise measurement of eye movements is important for investigating vision, oculomotor control and vestibular function. The magnetic scleral search coil technique is one of the most precise measurement techniques for recording eye movements with very high spatial (≈ 1 arcmin) and temporal (>kHz) resolution. The technique is based on measuring voltage induced in a search coil through a large magnetic field. This search coil is embedded in a contact lens worn by a human subject. The measured voltage is in direct relationship to the orientation of the eye in space...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28178141/a-non-surgical-approach-to-the-management-of-exposure-keratitis-due-to-facial-palsy-by-using-mini-scleral-lenses
#9
Victor Zaki
RATIONALE: This is a retrospective study aimed to determine the efficacy of mini-scleral contact lens in protecting the cornea and improving vision in cases of facial palsy. PATIENT CONCERNS: Patients with facial palsy get exposure keratitis because the cornea is dry. They feel pain, discomfort and excessive watering. If left untreated, it leads to permanent damage to the cornea and loss of good functional vision. Mini-scleral lens keep the cornea covered by saline solution all wearing hours...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28168043/a-possible-regression-equation-for-predicting-visual-outcomes-after-surgical-repair-of-open-globe-injuries
#10
Huseyin Gursoy, Mustafa Deger Bilgec, Afsun Sahin, Ertugrul Colak
Background. To analyze the effects of factors other than the ocular trauma score parameters on visual outcomes in open globe injuries. Methods. Open globe injuries primarily repaired in our hospital were reviewed. The number of surgeries, performance of pars plana vitrectomy (PPV), lens status, affected tissues (corneal, scleral, or corneoscleral), intravitreal hemorrhage, intraocular foreign body, glaucoma, anterior segment inflammation, loss of iris tissue, cutting of any prolapsed vitreous in the primary surgery, penetrating injury, and the time interval between the trauma and repair were the thirteen variables evaluated using linear regression analysis...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28167054/glaucoma-and-intraocular-pressure-in-patients-operated-for-late-in-the-bag-intraocular-lens-dislocation-a-randomized-clinical-trial
#11
Olav Kristianslund, Marianne Råen, Atle Einar Østern, Liv Drolsum
PURPOSE: To compare intraocular pressure (IOP) and IOP-lowering treatment requirements in patients with late in-the-bag intraocular lens (IOL) dislocation operated with 2 different methods, and to assess whether an IOP decrease after surgery can be expected. DESIGN: Prospective, randomized, parallel-group clinical trial. METHODS: In our university clinic, 104 patients (eyes) were randomly assigned to IOL repositioning by scleral suturing (n = 54) or IOL exchange with retropupillar iris-claw lens (n = 50)...
February 3, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28161926/epidemiology-of-open-globe-injuries-in-hong-kong
#12
Emmy Y Li, Tommy C Chan, Andrea T Liu, Hunter K Yuen
PURPOSE: The aim of this study was to review the epidemiology and clinical outcomes of open-globe injuries (OGIs) in Hong Kong over a 10-year period. DESIGN: Retrospective case-review. METHODS: This study included patients with OGI who presented to Hong Kong Eye Hospital and Queen Elizabeth Hospital from 1999 to 2008. Patient demographics, causes and mechanisms of injury, visual acuity (VA) at presentation, clinical features, and final VA were collected...
January 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28149781/high-speed-small-gauge-anterior-vitrectomy-cutter-for-scleral-fixated-intraocular-lens-implantation
#13
Yuan Bo Liang, Yoly Y Y Fong, Lulu L Cheng, Alvin L Young
AIM: To report the outcomes of anterior vitrectomy using high speed cutter for scleral fixated intraocular lens (SFIOL) implantation in patients with posterior capsular rupture. METHODS: Medical records of 51 patients with posterior capsular rupture who received high speed cutter anterior vitrectomy via limbal incision with SFIOL implantation from June 2011 to December 2013 were reviewed retrospectively for visual outcomes and complications. RESULTS: Totally 51 eyes of 51 patients were identified (23 males and 28 females)...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28149776/ex-press-implantation-with-phacoemulsification-in-poag-versus-cpacg
#14
Jie Lan, Da-Peng Sun, Jie Wu, Ya-Ni Wang, Li-Xin Xie
AIM: To compare the long-term outcomes of the Ex-PRESS miniature glaucoma device implanted under a scleral flap in combination of phacoemulsification with intraocular lens implantation in primary open angle glaucoma (POAG) and chronic primary angle-closure glaucoma (CPACG). METHODS: Retrospective, comparative study. A total of 60 eyes (60 patients) receiving the Ex-PRESS miniature glaucoma device implantation combined with phacoemulsification were reviewed. Thirty eyes (30 patients) had the combined procedures for POAG, and the other 30 eyes (30 patients) for CPACG...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28125853/post-lens-tear-turbidity-and-visual-quality-after-scleral-lens-wear
#15
Gonzalo Carracedo, Maria Serramito-Blanco, Alba Martin-Gil, Zicheng Wang, Candela Rodriguez-Pomar, Jesús Pintor
BACKGROUND: The aim was to evaluate the turbidity and thickness of the post-lens tear layer and its effect on visual quality in patients with keratoconus after the beginning of lens wear and before lens removal at the end of eight hours. METHODS: Twenty-six patients with keratoconus (aged 36.95 ± 8.95 years) participated voluntarily in the study. The sample was divided into two groups: patients with intrastromal corneal ring (ICRS group) and patients without ICRS (KC group)...
January 26, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28110637/surgical-reconstruction-of-traumatic-ciliary-body-dialysis-a-case-report
#16
Adam Kluś, Mariusz Kosatka, Milena Kozera, Marek Rękas
BACKGROUND: A cyclodialysis cleft is a gap resulting from disruption of the longitudinal fibers constituting the ciliary body attachment to the scleral spur. The cyclodialysis cleft can be of traumatic or iatrogenic origin, and it may occur during intraocular surgery or as a result of a glaucoma operation. In this report we present a surgical technique to treat cyclodialysis: cyclopexy combined with phacoemulsification subluxation lens, transscleral suturing of Cionni ring, and intraocular lens implantation with iris cerclage suture...
January 23, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28092274/power-profiles-and-in-vitro-optical-quality-of-scleral-contact-lenses-effect-of-the-aperture-and-power
#17
Alberto Domínguez-Vicent, Jose Juan Esteve-Taboada, Alberto Recchioni
OBJECTIVE: To assess the power profile and in vitro optical quality of scleral contact lenses with different powers as a function of the optical aperture. METHODS: The mini and semiscleral contact lenses (Procornea) were measured for five powers per design. The NIMO TR-1504 (Lambda-X) was used to assess the power profile and Zernike coefficients of each contact lens. Ten measurements per lens were taken at 3- and 6-mm apertures. Furthermore, the optical quality of each lens was described in Zernike coefficients, modulation transfer function, and point spread function (PSF)...
January 13, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28088605/comparison-of-the-anterior-chamber-angle-structure-between-children-and-adults
#18
Yukiko Shimizu, Shunsuke Nakakura, Toshihiko Nagasawa, Akiko Okamoto, Hitoshi Tabuchi, Yoshiaki Kiuchi
PURPOSE: To investigate the anterior chamber structure in children and adults with a similar axial length (AL). METHODS: A total of 50 children (mean age, 7.1 ± 3.3 years; range, 3-16) with mainly refractive error and 50 adults (mean age, 73.7 ± 7.8 years; range, 50-85) with short AL were included. The mean AL was 22.21 ± 0.88 mm (range, 20.67-23.97 mm) in children; 22.34 ± 0.53 mm (range, 20.50-22.96 mm), in adults. The corneal curvature, spherical equivalent, AL, central corneal thickness (CCT), inter-scleral spur distance, perpendicular distance, anterior chamber depth (ACD), angle opening distance (AOD), and lens vault were measured...
January 11, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28086913/correction-of-irregular-and-induced-regular-corneal-astigmatism-with-toric-iol-after-posterior-segment-surgery-a-case-series
#19
Bence L Kolozsvári, Gergely Losonczy, Dorottya Pásztor, Mariann Fodor
BACKGROUND: Toric intraocular lens (IOL) implantation can be an effective method for correcting corneal astigmatism in patients with vitreoretinal diseases and cataract. Our purpose is to report the outcome of toric IOL implantation in two cases - a patient with scleral-buckle-induced regular corneal astigmatism and a patient with keratoconus following pars plana vitrectomy. As far as we are aware, there are no reported cases of toric IOL implantation in a vitrectomized eye with keratoconus nor of toric IOL implantation in patients with scleral-buckle-induced regular corneal astigmatism...
January 13, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28073689/corneo-scleral-contact-lens-in-a-piggyback-system-for-keratoconus-a-case-report
#20
Esteban Porcar, Juan Carlos Montalt, Enrique España-Gregori, Cristina Peris-Martínez
PURPOSE: We describe a case of fitting a corneo-scleral contact lens with a multi-aspheric geometry design (MAGD CScL) on top of a daily silicone hydrogel lens (piggyback system) for keratoconus management. METHODS: A 48-year-old man using soft toric contact lenses required an improvement in the unsatisfactory quality of his vision. He presented with bilateral asymmetric keratoconus with high myopia in the right eye (RE) and severe myopia in the left eye (LE). In addition, he had low vision in his LE because of a maculopathy...
January 7, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
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