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https://www.readbyqxmd.com/read/28225372/spherical-soft-contact-lens-designs-and-peripheral-defocus-in-myopic-eyes
#1
Kelly E Moore, Julia S Benoit, David A Berntsen
PURPOSE: Peripheral retinal defocus has been implicated in myopia progression. The effect of commercially available spherical soft contact lenses (SCLs) on peripheral defocus of adult myopic eyes was investigated. METHODS: Twenty-five young adults with spherical equivalent (SE) refractions between -0.50D and -6.00D were enrolled. Cycloplegic autorefraction (right eye) was measured centrally and ±20°, ±30°, and ±40° from the line of sight along the horizontal meridian using an autorefractor...
March 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28211176/peripheral-aberrations-in-adult-hyperopes-emmetropes-and-myopes
#2
Uchechukwu L Osuagwu, Marwan Suheimat, David A Atchison
PURPOSE: To determine differences in peripheral aberrations in hyperopic, emmetropic and myopic groups. METHODS: Cycloplegic peripheral aberrations for 5 mm pupils were measured at 39 locations across 42° × 32° of right eye visual fields with a COAS-HD Hartmann-Shack aberrometer in nine hyperopes (mean age 29 ± 5 years, spherical equivalent refraction M + 1.47 ± 0.58 D), 20 emmetropes (28 ± 7 years, +0.06 ± 0.36 D) and 20 myopes (27 ± 6 years, -2...
March 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28210183/intraocular-lens-power-overestimation-in-a-patient-with-history-of-circling-keratorraphy
#3
Vasilios F Diakonis, Nilufer Yesilirmak, George D Kymionis, Sonia H Yoo
We report a case of cataract extraction and intraocular lens (IOL) power overestimation in a patient with history of hyperopia managed with circling keratorraphy. A 65-year-old female presented to our institute complaining of decreased vision in both eyes. The patient had a history of bilateral hyperopia that was managed 20 years ago (1994) with circling keratorraphy. At presentation her uncorrected distance visual acuity (UDVA) was 20/70 and 20/60 in her right eye (OD) and left eye (OS), respectively, while her corrected distance visual acuity (CDVA) was 20/25 OD and 20/25 OS with manifest refraction of -0...
July 2016: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28182148/retina-and-optic-disc-characteristics-in-amblyopic-and-non-amblyopic-eyes-of-patients-with-myopic-or-hyperopic-anisometropia
#4
Arzu Taşkıran Çömez, Elif Şanal Ulu, Yeliz Ekim
OBJECTIVES: To compare retinal and optic disc characteristics between amblyopic and non-amblyopic eyes in patients with myopic and hyperopic anisometropia measured with optical coherence tomography (OCT). MATERIALS AND METHODS: Patients with myopic (25 patients: 17 female, 8 male; median age 27 years, range 16-40 years) and hyperopic (31 patients: 19 female, 12 male; median age 20 years, range 13-41 years) anisometropic amblyopia were included. Eye examination included determination of best-corrected visual acuity (BCVA) with a Snellen chart, measurement of manifest and cycloplegic refraction after pupillary dilation, alternate cover testing, globe movement evaluation, A-scan biometry for axial length, biomicroscopy, fundus examination, and OCT scanning...
January 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28166430/effect-of-rigid-gas-permeable-contact-lenses-on-nystagmus-and-visual-function-in-hyperopic-patients-with-infantile-nystagmus-syndrome
#5
Abbas Bagheri, Hamed Abbasi, Mehdi Tavakoli, Abdolreza Sheibanizadeh, Bahareh Kheiri, Shahin Yazdani
PURPOSE: To determine the effect of rigid gas permeable contact lenses (RGPCL) on involuntary eye movements and visual function in hyperopic patients with infantile nystagmus syndrome. METHODS: This prospective interventional case series was conducted on 16 patients with infantile nystagmus and hyperopia equal or more than +0.5 D and astigmatism more than -1 D over a 2-year period. A complete ophthalmological examination including determination of best corrected visual acuity (BCVA), contrast sensitivity, and videonystagmography was performed for all patients before and after at least 3 months of RGPCL use, and the outcomes were compared...
February 6, 2017: Strabismus
https://www.readbyqxmd.com/read/28162197/-influence-of-wearing-long-wavelength-filter-glasses-on-refractive-development-of-children-s-hyperopia
#6
J Huang, Z Q Yu, R Y Chu, Y S Qian, Y Xu, X Q Wang
Objective: To investigate the effect of wearing long wavelength filter glasses on refractive development of children's hyperopia. Methods: Case control study. Seventeen 5-7 years' old children with high hyperopia from optometry clinic of Eye and ENT Hospital Affiliated to Fudan University were enrolled in this research. The experiment design was self-control between right and left eye, 3 children were lost during two years' period of observation, all the children's hyperopic refraction were more than +6.00 D, cycloplegic by 1% atropine...
January 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28151939/role-of-percent-peripheral-tissue-ablated-on-refractive-outcomes-following-hyperopic-lasik
#7
George Fatseas, Fiona Stapleton, Patrick Versace
OBJECTIVES: To determine the effect of hyperopic laser in situ keratomileusis (H-LASIK) on corneal integrity, by investigating relationships between proportionate corneal tissue ablated and refractive outcomes at 3 months. METHODS: 18 eyes of 18 subjects treated with H-LASIK by Technolas 217c Excimer Laser were included in the study. Orbscan II Topography System was used to determine corneal volume and pachymetry 3mm temporally (3T). The volume of corneal tissue ablated was determined from the laser nomogram...
2017: PloS One
https://www.readbyqxmd.com/read/28114313/the-relationship-between-crystalline-lens-power-and-refractive-error-in-older-chinese-adults-the-shanghai-eye-study
#8
Jiangnan He, Lina Lu, Xiangui He, Xian Xu, Xuan Du, Bo Zhang, Huijuan Zhao, Jida Sha, Jianfeng Zhu, Haidong Zou, Xun Xu
PURPOSE: To report calculated crystalline lens power and describe the distribution of ocular biometry and its association with refractive error in older Chinese adults. METHODS: Random clustering sampling was used to identify adults aged 50 years and above in Xuhui and Baoshan districts of Shanghai. Refraction was determined by subjective refraction that achieved the best corrected vision based on monocular measurement. Ocular biometry was measured by IOL Master...
2017: PloS One
https://www.readbyqxmd.com/read/28104501/esotropia-with-an-accommodative-component-after-surgery-for-infantile-esotropia-compared-to-primary-accommodative-esotropia
#9
Kyung-Ah Park, Sei Yeul Oh
PURPOSE: To compare the clinical outcomes of patients with an esotropia with an accommodative component after infantile esotropia surgery and patients with primary refractive accommodative esotropia. METHODS: The medical records of patients with postoperative (secondary group) and primary refractive accommodative esotropia (primary group) were reviewed retrospectively. Changes in ocular alignment, refractive error, weaning rate, decompensation rate over time, and sensory outcomes were compared...
January 16, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28092397/update-on-orthokeratology-in-managing-progressive-myopia-in-children-efficacy-mechanisms-and-concerns
#10
Xintong Li, Ilana B Friedman, Norman B Medow, Cheng Zhang
Myopia is an important public health issue, and high myopia may lead to severe complications if left untreated. Orthokeratology lenses, worn overnight to reshape the cornea, are one of many recent modalities used to slow down the progression of myopia in children. This treatment has been proven successful, as evidenced by decreased spherical refractive error and axial length relative to the control at interval follow-up ranging from 6 months to 5 years. In this systematic review, the authors collected published controlled studies that analyzed the efficacy of orthokeratology lens wear and calculated longitudinal relative changes in axial length, revealing a weighted average of -45...
January 13, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28068445/presbyopic-correction-using-monocular-bi-aspheric-ablation-profile-presbymax-in-hyperopic-eyes-1-year-outcomes
#11
Tommy C Y Chan, Peter S K Kwok, Vishal Jhanji, Victor C P Woo, Alex L K Ng
PURPOSE: To present the 1-year outcomes of combining monocular bi-aspheric ablation profile and contralateral monofocal LASIK in hyperopic patients with presbyopia. METHODS: In this retrospective case series, 36 consecutive patients (72 eyes) who underwent simultaneous bi-aspheric ablation (PresbyMAX: SCHWIND Eye-Tech-Solutions GmbH and Co KG, Kleinostheim, Germany) in the non-dominant eye and monofocal regular LASIK in the dominant eye for correction of hyperopia and presbyopia were reviewed for 1 year...
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28009399/multifocal-corneal-ablation-supracor-in-hyperopic-presbyopia-1-year-results-in-a-cross-sectional-study
#12
Torsten Schlote, Alexander Heuberger
PURPOSE: To evaluate the efficacy and safety of the multifocal excimer laser corneal ablation profile (the Supracor procedure) in hyperopic presbyopia 1 year after laser treatment. METHODS: This prospective, consecutive, one-center, cross-sectional study included 20 patients with hyperopic presbyopia 1 year after treatment with the Supracor procedure. The main outcome measures were monocular uncorrected distance visual acuity (UDVA) and uncorrected near visual acuity (UNVA), photopic contrast sensitivity (Pelli-Robson charts), patient satisfaction, and functioning at 12 months...
December 2, 2016: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28005683/association-of-body-length-with-ocular-parameters-in-mice
#13
Ranjay Chakraborty, Han Na Park, Christopher C Tan, Paul Weiss, Megan C Prunty, Machelle T Pardue
PURPOSE: To determine the association between changes in body length with ocular refraction, corneal radii, axial length, and lens thickness in two different mouse strains. METHODS: Body length, ocular refraction, corneal radii, axial length, and lens thickness were measured for two inbred mouse strains: 129S1/SvJ (n = 7) and C57BL/6 J (n = 10) from 4 to 12 weeks of age. Body length, from tip of nose to base of tail, was obtained using a digital camera. Biometric parameters, corneal radii, and refractions were measured using spectral-domain optical coherence tomography, automated keratometry, and infrared photorefraction, respectively...
December 21, 2016: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28002845/myopia-development-among-young-schoolchildren-the-myopia-investigation-study-in-taipei
#14
Der-Chong Tsai, Shao-You Fang, Nicole Huang, Chih-Chien Hsu, Shing-Yi Chen, Allen Wen-Hsiang Chiu, Catherine Jui-Ling Liu
Purpose: To investigate the annual incidence of myopia and associated factors among young schoolchildren in Taipei City. Methods: The Myopia Investigation Study in Taipei was a citywide, population-based cohort study. During the fall 2013 semester (baseline), a total of 11,590 grade 2 schoolchildren completed ocular examination and were included for further analysis. A parent-completed questionnaire was administered to collect data on risk factors for myopia development...
December 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27980363/comparison-of-long-term-clinical-outcomes-between-descemet-s-stripping-automated-endothelial-keratoplasty-and-penetrating-keratoplasty-in-patients-with-bullous-keratopathy
#15
Sung Eun Kim, Sung A Lim, Yong-Soo Byun, Choun-Ki Joo
PURPOSE: To compare 2-year clinical outcomes of Descemet's stripping automated endothelial keratoplasty (DSAEK) and penetrating keratoplasty (PK) in patients with bullous keratopathy. METHODS: A retrospective chart review was performed to obtain 2 years of follow-up data of DSAEK or PK at a single center from March 2009 to September 2012. The study comprised 15 eyes of DSAEK and 11 eyes of PK. Outcome measures included best-corrected visual acuity (BCVA), spherical and keratometric changes, central corneal thickness, endothelial cell density, intraocular pressure, and postoperative complications...
December 2016: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/27979713/the-wavelength-composition-and-temporal-modulation-of-ambient-lighting-strongly-affect-refractive-development-in-young-tree-shrews
#16
Timothy J Gawne, John T Siegwart, Alexander H Ward, Thomas T Norton
Shortly after birth, the eyes of most animals (including humans) are hyperopic because the short axial length places the retina in front of the focal plane. During postnatal development, an emmetropization mechanism uses cues related to refractive error to modulate the growth of the eye, moving the retina toward the focal plane. One possible cue may be longitudinal chromatic aberration (LCA), to signal if eyes are getting too long (long [red] wavelengths in better focus than short [blue]) or too short (short wavelengths in better focus)...
December 12, 2016: Experimental Eye Research
https://www.readbyqxmd.com/read/27956824/short-term-visual-result-after-simultaneous-photorefractive-keratectomy-and-small-aperture-cornea-inlay-implantation
#17
Majid Moshirfar, Ryan T Wallace, David F Skanchy, Jordan D Desautels, Steven H Linn, Phillip C Hoopes, Daniel S Durrie
PURPOSE: To report the short-term results of simultaneous photorefractive keratectomy (PRK) and small-aperture cornea inlay implantation (KAMRA) surgery in treating presbyopia. METHODS: Simultaneous PRK and KAMRA inlay surgery was performed on 21 patients from July 2015 to March 2016. Follow-up exams were conducted at 1, 3, and 6 months postoperatively. Our patients were also divided preoperatively into three categories: myopic, hyperopic, and emmetropic. Over the 6-month period, the main outcome measures were uncorrected near visual acuity (UNVA), changes in best-corrected distance visual acuity, and mean spherical equivalent refraction...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27938951/outcomes-of-photorefractive-keratectomy-following-laser-in-situ-keratomileusis-a-cohort-study
#18
Alfonso Iovieno, Joshua C Teichman, Stephanie Low, Sonia N Yeung, Marie Eve Lègarè, Alejandro D Lichtinger, Allan R Slomovic, David S Rootman
OBJECTIVE: To analyze the outcomes of photorefractive keratectomy (PRK) on residual myopia and hyperopia post-laser in situ keratomileusis (LASIK) and to compare these results with PRK on eyes without previous laser refractive surgery. DESIGN: Retrospective comparative cohort study. PARTICIPANTS: Patients undergoing PRK between 2006 and 2010 were reviewed. METHODS: Patients were divided into 4 groups, myopic or hyperopic PRK post-LASIK (mPRK-PL and hPRK-PL, respectively) and myopic or hyperopic PRK on corneas without previous laser refractive surgery (mPRK and hPRK, respectively)...
December 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/27936115/long-term-changes-in-refractive-error-and-clinical-evaluation-in-partially-accommodative-esotropia-after-surgery
#19
Shin Yeop Oh, Ju-Yeun Lee, Kyung-Ah Park, Sei Yeul Oh
We investigate the changes in refractive error and clinical evaluation in partially accommodative esotropia(PAET) after surgery. A total of 68 patients PAET who received at least 2 years of follow-up after surgery were enrolled in this study. We performed a retrospective study in patients who underwent unilateral or bilateral medial rectus recession for a non-accommodative component of PAET between January 2005 and March 2013. Patients were divided into groups according to the presence of dominancy (dominant, non-dominant, alternative eye), and presence of amblyopia (amblyopic, fellow, normal eye)...
2016: PloS One
https://www.readbyqxmd.com/read/27929723/prevalence-and-risk-factors-of-strabismus-in-a-uk-multi-ethnic-birth-cohort
#20
Alison Bruce, Gillian Santorelli
PURPOSE: To determine the prevalence, types and early-life risk factors associated with strabismus in a multi-ethnic birth cohort of children aged 4-5 years in the first year of school. METHODS: Data were collected prospectively over a 3-year period (2012-2015) from children participating in the vision screening program provided by orthoptists and carried out in schools located in the city of Bradford, UK. Prevalence of strabismus was determined for 17,018 children aged 4 to 5 years...
December 2016: Strabismus
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