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3119 search results for:

Refractive Errors 

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  1. 01-12-2024 | Botulinum Toxin | OriginalPaper

    Effect of refractive errors on the results of botulinum neurotoxin administration in patients with infantile esotropia

    Infantile esotropia (IE) is the most common type of esodeviation observed in childhood, initially emerging in the first six months. The angle of deviation is fixed and wide. The neurological examinations of children with IE are usually normal. IE …

  2. Open Access 15-02-2024 | Cataract | Online First

    Refractive predictive errors using Barrett II, Hoffer-Q, and SRKT formulae for pediatric IOL implantation

    Congenital and childhood cataracts constitute a significant cause of visual disability in children and are responsible for 5–20% of pediatric blindness globally [ 1 ]. When a cataract significantly affects vision or visual development, it is …

  3. 17-07-2023 | Refractive Surgery | OriginalPaper

    The tolerance of refractive errors of extended depth of focus intraocular lens in patients with previous corneal refractive surgery

    Since the excimer laser was first used in corneal refractive surgery, millions of patients with refractive errors have been treated. With aging, many of these patients develop cataracts and presbyopia [ 1 ]. Compared with other patients with …

  4. Open Access 01-12-2023 | Refractive Errors | Erratum

    Correction: Correlation between refractive errors and ocular biometric parameters in children and adolescents: a systematic review and meta-analysis

  5. Open Access 01-12-2023 | Refractive Errors | OriginalPaper

    Correlation between refractive errors and ocular biometric parameters in children and adolescents: a systematic review and meta-analysis

    Uncorrected refractive errors represent the second leading cause of global blindness, with myopia being the most common type. In recent years, the prevalence of myopia has been rapidly increasing worldwide, and there was a concerning trend of …

  6. 17-10-2023 | Refractive Errors | OriginalPaper

    Effects of prematurity and retinopathy of prematurity on refractive errors and biometric optic components in school children: results of a tertiary center from Turkey

    Retinopathy of prematurity (ROP) is a disorder resulting from abnormal proliferation of retinal vessels seen in low birth weight (BW) and preterm babies. Its etiology is multifactorial and not completely preventable, it is an important cause of …

  7. 30-01-2023 | Glaucoma | OriginalPaper

    Success rate in micropulse diode laser treatment with regard to lens status, refractive errors, and glaucoma subtypes

    The options for treating patients with glaucoma are growing. Beyond traditional eye drops, trabeculoplasty, and surgery, there are new medical therapies [ 1 – 3 ] and more surgical options that are coming along mostly through minimally invasive …

  8. Open Access 01-12-2023 | Refractive Errors | OriginalPaper

    Corneal higher order aberrations by Sirius topography and their relation to different refractive errors

    Higher-order aberrations (HOAs) are small optical irregularities of the eye, which can have an impact on the quality of the retinal image [ 1 ]. In contrast to lower order aberrations, these errors cannot be corrected with regular spectacles and …

  9. Open Access 01-12-2023 | Adjustment Disorder | OriginalPaper

    Refractive errors and ocular findings in children and adolescents with mental disorders: a retrospective study

    Mental disorders (MDs) in childhood refer to anxiety disorder, depression, schizophrenia, bipolar and related disorders, mental retardation, and substance-related and addictive disorders, with onset at ages below 18 years [ 1 ]. Some MDs are …

  10. Open Access 01-12-2023 | Glaucoma | OriginalPaper

    High prevalence of refractive errors in an elderly population; a public health issue

    According to recent reports in 2020, there are an estimated 43.3 million people with blindness and an additional 295 million people with moderate and severe visual impairment worldwide. These figures are expected to increase to 61 million and 474 …

  11. Open Access 01-12-2021 | Cycloplegia | OriginalPaper

    Refractive errors and visual impairment among children and adolescents in southernmost China

    Refractive errors (RE) are the most common cause of visual impairment and disability in children and adolescents worldwide [ 1 ]. They can be classified into myopia, hyperopia and astigmatism [ 2 ]. Globally, it was estimated that 12.8 million …

  12. Open Access 01-12-2021 | Refractive Errors | OriginalPaper

    Refractive errors and risk factors for myopia in infants aged 1–18 months in Tianjin, China

    Previous studies [ 1 , 2 ] have shown that the refractive state in neonates is hyperopic, and different powers in different meridians of the cornea result in relatively high astigmatism. The physical characteristics of ocular structure are largely …

  13. Open Access 01-12-2022 | Refractive Anomaly | OriginalPaper

    Refractive errors and associated factors among patients visiting BoruMeda Hospital’s secondary eye Unit in Dessie Town, South Wollo Zone, Ethiopia

    Refractive error (RE) is a phenomenon that happens when the eye fails to concentrate light rays from objects onto the retinal plane, resulting in fuzzy images. Myopia (short sightedness), hyperopia (long sightedness), and astigmatism (no single …

  14. Open Access 01-06-2022 | Refractive Errors | OriginalPaper

    Biometric Determinants of Epithelial Thickness Profile Across a Wide Range of Refractive Errors

    The corneal epithelium is the outer layer of the cornea that provides protection against external factors and increases optical quality by ensuring a smooth front surface [ 1 ]. The corneal epithelium contributes to 1.03 diopters (D) and 0.85 D to …

  15. 11-04-2022 | Refractive Errors | OriginalPaper

    Quantitative changes in iris vasculature and blood flow in patients with different refractive errors

    Uncorrected refractive error, or myopia, is the most common cause of vision impairment globally [ 1 ]. More than 1.4 billion people suffer from myopia [ 2 ]. However, existing theories, including the defocus theory, do not account for the various …

  16. 01-06-2020 | Refractive Errors | ReviewPaper

    The prevalence of refractive errors in the Middle East: a systematic review and meta-analysis

    Refractive errors are one of the leading causes of visual impairment around the world and the second leading cause of blindness after cataract [ 1 ]. According to the World Health Organization [ 1 ] reports, about 123.7 million people of the …

  17. 01-10-2021 | Refractive Errors

    Refractive errors after sutureless intrascleral fixation of intraocular lens

    An intraocular lens (IOL) can be implanted into the anterior chamber [ 1 – 3 ] or in the posterior chamber and sutured to the sclera [ 4 , 5 ] in the eyes that have had a dislocation of the crystalline lens or had a previously implanted IOL or in …

  18. Open Access 01-12-2021 | Refractive Errors | OriginalPaper

    Relationship between age, refractive errors and motor fusion in a normal Chinese adult population: a cross-sectional study

    Binocular single vision (BSV) is a brain process in which the integration of two retinal images into a single visual perception is achieved [ 1 ]. It is crucial for one’s perception in both static and dynamic situations using BSV [ 2 ]. Normal BSV …

  19. Open Access 01-12-2021 | Refractive Errors | OriginalPaper

    The prevalence of lower eyelid epiblepharon and its association with refractive errors in Chinese preschool children: a cross-sectional study

    Epiblepharon is an eyelid disorder characterized by a horizontal skinfold that can overlap the eyelid margin, which results in eyelash brushing against the ocular surface [ 1 , 2 ]. This eyelid anomaly usually affects the lower eyelid bilaterally …

  20. 01-12-2020 | Refractive Errors

    Compliance to spectacle use in children with refractive errors- a systematic review and meta-analysis

    Uncorrected refractive errors are a major cause of morbidity globally. Recent data shows that uncorrected refractive error is among the leading causes of moderate or severe vision impairment in the global population in 2015 [ 1 ].It is estimated …

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