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myopia treatment

Sunali Goyal, Paul H Phillips, Mallikarjuna Rettiganti, Jeffrey M Gossett, R Scott Lowery
PURPOSE: To study the effect of cycloplegia on astigmatism measurements in pediatric patients with amblyopia. METHODS: This was a prospective comparative clinical study. Participants 4 to 17 years old were recruited from the patient population at the Arkansas Children's Hospital eye clinic after informed consent was obtained. Autorefractor measurements were used to obtain values of refractive error in amblyopic and non-amblyopic patients before and after cycloplegia...
June 18, 2018: Journal of Pediatric Ophthalmology and Strabismus
John C Norton, Sunali Goyal
PURPOSE: To determine patient characteristics and outcomes for developing retained nuclear fragments in the anterior chamber after phacoemulsification in at-risk populations. SETTING: University of Arkansas for Medical Sciences, Jones Eye Institute, Little Rock, Arkansas, USA. DESIGN: Retrospective case series. METHODS: Using Current Procedural Terminology codes 2006 to 2018, patients with a diagnosis of retained nuclear fragment in the anterior chamber after uncomplicated phacoemulsification cataract extraction were identified...
June 13, 2018: Journal of Cataract and Refractive Surgery
Jeffrey Cooper, Andrei V Tkatchenko
Myopia occurs in more than 50% of the population in many industrialized countries and is expected to increase; complications associated with axial elongation from myopia are the sixth leading cause of blindness. Thus, understanding its etiology, epidemiology, and the results of various treatment regiments may modify current care and result in a reduction in morbidity from progressive myopia. This rapid increase cannot be explained by genetics alone. Current animal and human research demonstrates that myopia development is a result of the interplay between genetic and the environmental factors...
June 6, 2018: Eye & Contact Lens
Pei-Chang Wu, Meng-Ni Chuang, Jessy Choi, Huan Chen, Grace Wu, Kyoko Ohno-Matsui, Jost B Jonas, Chui Ming Gemmy Cheung
The prevalence of myopia is increasing globally. Complications of myopia are associated with huge economic and social costs. It is believed that high myopia in adulthood can be traced back to school age onset myopia. Therefore, it is crucial and urgent to implement effective measures of myopia control, which may include preventing myopia onset as well as retarding myopia progression in school age children. The mechanism of myopia is still poorly understood. There are some evidences to suggest excessive expansion of Bruch's membrane, possibly in response to peripheral hyperopic defocus, and it may be one of the mechanisms leading to the uncontrolled axial elongation of the globe...
June 11, 2018: Eye
San-Ni Chen, Yi-Ting Hsieh, Chung-May Yang
PURPOSE: The aim of this paper was to evaluate the efficacy of multiple free internal limiting membrane (ILM) flap insertion in the management of macular hole-associated retinal detachment in high myopia. PROCEDURES: Eyes receiving operation for macular hole-associated retinal detachment were retrospectively recruited. Those in the study group received ILM peeling and multiple free ILM flap insertion, while those in the control group received ILM peeling only. Postoperative anatomical outcomes and best-corrected visual acuity were compared between the 2 groups...
June 6, 2018: Ophthalmologica. Journal International D'ophtalmologie
Yumiko Yonemoto, Seita Morishita, Masanori Fukumoto, Masashi Mimura, Takaki Sato, Teruyo Kida, Shota Kojima, Hidehiro Oku, Jun Sugasawa, Tsunehiko Ikeda
RATIONALE: The aim of this study was to report a case of Down syndrome (DS) complicated with bilateral retinal detachment (RD) due to unusual retinal degeneration. PATIENT CONCERNS: A 9-year-old girl complained of bilateral visual disturbance during a follow-up examination for myopia and strabismus. DIAGNOSES: Slit-lamp examination revealed moderate posterior subcapsular cataract in both eyes. B-mode echography showed bilateral bullous RD; however, it was difficult to detect the causal retinal breaks due to poor mydriasis...
June 2018: Medicine (Baltimore)
Nevin W El-Nimri, Christine F Wildsoet
Purpose: To determine whether latanoprost, a prostaglandin analog proven to be very effective in reducing intraocular pressure (IOP) in humans, can also slow myopia progression in the guinea pig form deprivation (FD) model. Methods: Two-week-old pigmented guinea pigs underwent monocular FD and daily topical latanoprost (0.005%, n = 10) or artificial tears (control, n = 10) starting 1 week after the initiation of FD, with all treatments continuing for a further 9 weeks...
May 1, 2018: Investigative Ophthalmology & Visual Science
Furong Huang, Lishuai Zhang, Qiongsi Wang, Yanan Yang, Qihang Li, Yi Wu, Jiangfan Chen, Jia Qu, Xiangtian Zhou
Purpose: To determine the roles of dopamine D2 receptors (D2Rs) and dopamine D1 receptors (D1Rs) in the inhibition of form-deprivation myopia (FDM) by the nonselective dopamine agonist apomorphine (APO) in D2R-knockout (D2R-KO) and D1R-KO mice. Methods: Retinal layer thicknesses and electroretinograms (ERGs) were analyzed in KO mice and in D2R and D1R antagonist-treated mice. D2R-KO or D1R-KO mice and wild-type (WT) littermates were subjected to form deprivation during postnatal weeks 5 to 8...
May 1, 2018: Investigative Ophthalmology & Visual Science
Yijie Wang, Yufeng Xu, Xi Liu, Lixia Lou, Juan Ye
Congenital ptosis may be associated with abnormalities of visual development and function, including amblyopia, strabismus and refractive errors. However, the prevalence estimates of these abnormalities vary widely. We performed a systematic review and meta-analysis to estimate the prevalence of amblyopia, strabismus and refractive errors in congenital ptosis. Cochrane, Pubmed, Medline, Embase, and Web of Science were searched by July 2017. We used random/fixed effects models based on a proportion approach to estimate the prevalence...
May 29, 2018: Scientific Reports
António Queirós, Ana Amorim-de-Sousa, Daniela Lopes-Ferreira, César Villa-Collar, Ángel Ramón Gutiérrez, José Manuel González-Méijome
Background: To characterize the axial and off-axis refraction across four meridians of the retina in myopic eyes before and after Orthokeratology (OK) and LASIK surgery. Methods: Sixty right eyes with a spherical equivalent (M) between - 0.75 to - 5.25 D (cylinder <- 1.00 D) underwent LASIK (n = 26) or OK (n = 34) to treat myopia. Axial and off-axis refraction were measured with an open-field autorefractometer before and after stabilized treatments. Off-axis measurements were obtained for the horizontal (35° nasal and temporal retina) and vertical (15° superior and inferior retina) meridians, and for two oblique directions (45-225° and 135-315°) up to 20° of eccentricity...
2018: Eye and Vision (London, England)
Manoj Motwani
Purpose: The aim of this article was to demonstrate how WaveLight Contoura and wavefront optimization (WFO) can be used together to treat high myopia/myopic astigmatism corrections. Materials and methods: A retrospective analysis was conducted on 24 consecutive myopic/myopic astigmatism eyes that exceeded the Contoura labeling of -8.00 with -3.00 D of astigmatism. Residual correction after Contoura with Layer Yolked Reduction of Astigmatism protocol was treated with WFO Contoura LASIK correction...
2018: Clinical Ophthalmology
Matthias Elling, Inga Kersten-Gomez, H Burkhard Dick
PURPOSE: To assess the long-term effectiveness and safety of photorefractive intrastromal corneal crosslinking (CXL) in patients with low myopia. SETTING: Ruhr University Eye Hospital, Bochum, Germany. DESIGN: Prospective case series. METHODS: Healthy eyes with myopia were treated with photorefractive intrastromal CXL using the Mosaic System. Riboflavin 0.1% solution (VibeX Rapid) was topically administered, followed by 365 nm ultraviolet-A (30 mW/cm2 ) irradiance...
April 2018: Journal of Cataract and Refractive Surgery
Nora W Muakkassa, Eric J Schwaber, Nora Laver, Jay S Duker
The authors report a case of a 57-year-old male with high myopia, extensive bilateral myelination of the retinal nerve fiber layer, bilateral vitreous cysts, and a solitary vasoproliferative tumor in the right eye. He underwent pars plana vitrectomy and multiple transpupillary thermotherapy treatments for recurrent vitreous hemorrhages and subretinal exudation from the vasoproliferative tumor. To the authors' knowledge, this is the first description of this constellation of findings and suggests this represents a new syndrome...
May 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
Y-X Liu, Y Sun
OBJECTIVE: To investigate the expression changes of MMP-2 (matrix metalloproteinases-2) mediated by IGF-1 (insulin-like growth factors-1) STAT3 (signal transducer and activator of transcription 3) pathway in the sclera of the form-deprivation myopia guinea pigs. MATERIALS AND METHODS: Twenty-four three-week-old guinea pigs were randomly divided into 4 groups: group A (Control), B, C and D. Guinea pigs in group A were sacrificed after 21 days without any special treatment...
May 2018: European Review for Medical and Pharmacological Sciences
Haris Sideroudi, Apostolos Lazaridis, Anke Messerschmidt-Roth, Georgios Labiris, Vassilios Kozobolis, Walter Sekundo
PURPOSE: To evaluate the long-term changes in anterior and posterior corneal irregular astigmatism and curvatures after small incision lenticule extraction (SMILE). METHODS: Fifty eyes of 28 patients underwent SMILE for myopic astigmatism. All procedures were performed using the VisuMax® femtosecond laser. A Scheimpflug camera was used for preoperative and 3-year postoperative tomography. Anterior and posterior corneal Fourier parameters (spherical component, regular astigmatism, asymmetry, and irregularity) and curvature data were evaluated and compared within 2 subgroups according to the magnitude of the refractive correction (low myopia group: spherical equivalent (SEQ) ≥ -6 D; high myopia group: (SEQ) < -6 D)...
July 2018: Cornea
Yung-Sung Lee, Lai-Chu See, Shu-Hao Chang, Nan-Kai Wang, Yih-Shiou Hwang, Chi-Chun Lai, Kuan-Jen Chen, Wei-Chi Wu
PURPOSE: To investigate the macular structures, optical components, and visual acuity in preschool-aged children with a history of type I retinopathy of prematurity who underwent either intravitreal bevacizumab (IVB), laser, or a combination of treatments. DESIGN: Comparative interventional case series. METHODS SETTING: A referred medical center in Taiwan. STUDY POPULATION: 80 eyes from 42 patients (33 IVB-treated eyes from 17 children, 24 laser-treated eyes from 13 children, and 23 laser + IVB-treated eyes from 12 children)...
May 10, 2018: American Journal of Ophthalmology
Shih-Yi Lin, Wu-Huei Hsu, Cheng-Li Lin, Cheng-Chieh Lin, Jane-Ming Lin, Yun-Lun Chang, Chung-Y Hsu, Chia-Hung Kao
Direct evidence of whether thyroid cancer patients have a higher risk of age-related macular degeneration (AMD) has yet to be investigated. Patients older than 50 years-old and newly diagnosed with thyroid cancer between 2000 and 2008 were identified from the national health insurance research database (NHIRD). We applied time-varying Cox proportional hazard models to assess the association between thyroid cancer and AMD. The multivariable models included conventional cardiovascular risk factors, myopia, vitreous floaters, hypothyroidism, hyperthyroidism, and treatment modality of thyroid cancer...
May 3, 2018: International Journal of Environmental Research and Public Health
Lei Xi, Chen Zhang, Yanling He
BACKGROUND: To evaluate the refractive and visual outcomes of Transepithelial photorefractive keratectomy (TransPRK) in the treatment of low to moderate myopic astigmatism. METHODS: This retrospective study enrolled a total of 47 eyes that had undergone Transepithelial photorefractive keratectomy. Preoperative cylinder diopters ranged from - 0.75D to - 2.25D (mean - 1.11 ± 0.40D), and the sphere was between - 1.50D to - 5.75D. Visual outcomes and vector analysis of astigmatism that included error ratio (ER), correction ratio (CR), error of magnitude (EM) and error of angle (EA) were evaluated...
May 9, 2018: BMC Ophthalmology
Antonio García-Ben, Ignacio Garcia-Basterra, Ana González-Gómez, Isabel Baquero-Aranda, María José Morillo-Sanchez, Antonio Soler-García, Jose Manuel García-Campos
BACKGROUND: To compare the long-term clinical evolution of highly myopic eyes with vertical oval-shaped dome associated with or without untreated serous retinal detachment. METHODS: Twenty-eight patients with high myopia (40 eyes) with smooth macular elevations related to a vertical oval-shaped dome were recruited. Serous retinal detachment was investigated; 11 eyes had persistent submacular fluid (study group) and 29 eyes lacked submacular fluid (control group)...
May 7, 2018: British Journal of Ophthalmology
Jing Wang, Yanlin Ren, Kun Liang, Zhengxuan Jiang, Liming Tao
BACKGROUND: Femtosecond laser-assisted in situ keratomileusis (FS-LASIK) has gained widespread popularity as a safe, effective and predictable treatment for correcting myopia and myopic astigmatism.However, complications such as biomechanical changes, structural weakness, dry eye and induction of high-order aberrations (HOAs) have been associated with FS laser excision. The induction of HOAs has been reported to reduce quality of vision, leading to increased glare, halos, starburst and deterioration of contrast function corneal HOAs play a significant role in whole-eye aberration...
May 2018: Medicine (Baltimore)
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