Renato Ambrósio
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View article: Myopia Prevalence in Latin American Children and Adolescents: A Systematic Review and Meta-Analysis
Myopia Prevalence in Latin American Children and Adolescents: A Systematic Review and Meta-Analysis Open
View article: Development and Validation of the Relational Tissue Altered (RTA) Index: Applied Artificial Intelligence for the Assessment of Structural Impact from Laser Vision Correction
Development and Validation of the Relational Tissue Altered (RTA) Index: Applied Artificial Intelligence for the Assessment of Structural Impact from Laser Vision Correction Open
The Relational Tissue Altered (RTA) index provides an objective and data-driven measure of the structural impact induced by laser vision correction (LVC) on the cornea. Compared with traditional parameters such as Residual Stromal Bed (RSB…
View article: Keratoconus Phenotypes based on Corneal Topography, Tomography, and Aberrometry: A Morphological-surgical Classification
Keratoconus Phenotypes based on Corneal Topography, Tomography, and Aberrometry: A Morphological-surgical Classification Open
View article: Assessment of awareness of keratoconus and its relation to eye rubbing among Saudi Arabia population
Assessment of awareness of keratoconus and its relation to eye rubbing among Saudi Arabia population Open
Background Keratoconus (KC) is a bilateral, asymmetric, progressive thinning of the cornea that causes a decrease in optical quality due to induced myopia, irregular astigmatism, and higher order aberrations. KC affects 1.38 per 1,000 indi…
View article: Predictive value of enhanced corneal biomechanical parameters for ectasia progression
Predictive value of enhanced corneal biomechanical parameters for ectasia progression Open
Purpose To determine whether corneal biomechanical parameters can predict ectasia progression. Study design Retrospective observational study. Methods The baseline corneal biomechanical parameters of 64 eyes of 41 young patients (age, < 25…
View article: Comparação da paquimetria corneana total e epitelial em pacientes com e sem ceratocone
Comparação da paquimetria corneana total e epitelial em pacientes com e sem ceratocone Open
View article: Knowledge assessment of the importance of corneal biomechanics in glaucoma among physicians, ophthalmologists, and glaucoma specialists
Knowledge assessment of the importance of corneal biomechanics in glaucoma among physicians, ophthalmologists, and glaucoma specialists Open
Objective: To assess the knowledge of healthcare professionals about corneal biomechanics in glaucoma and identify knowledge gaps for educational focus. Methods: A cross-sectional observational study involving an online questionnaire addre…
View article: Ethical implications of using artificial intelligence to support scientific writing
Ethical implications of using artificial intelligence to support scientific writing Open
View article: Long-term results of intrastromal ring implantation for keratoconus
Long-term results of intrastromal ring implantation for keratoconus Open
Objective: To evaluate refractive and topographic outcomes before and at least 7 years after intrastromal ring segment implantation surgery in patients with keratoconus. Methods: Long-term retrospective longitudinal study carried out with …
View article: Consenso Latinoamericano de Lubricantes Oculares y Ojo Seco (LUBOS)
Consenso Latinoamericano de Lubricantes Oculares y Ojo Seco (LUBOS) Open
The tear film has a complex composition allowing it fulfill multiple functions, such as optical, lubrication, immunological, endocrine, and neurotrophic, which are relevant for visual health. Alterations in its components, both in quality …
View article: Enhancing corneal ectasia susceptibility detection: analysis of a new algorithm (BAD-D v4)
Enhancing corneal ectasia susceptibility detection: analysis of a new algorithm (BAD-D v4) Open
Accurate detection of post-refractive ectasia susceptibility is essential during preoperative evaluation for laser vision correction (LVC) due to the risk of progressive corneal ectasia and vision decline post-surgery. Despite improved scr…
View article: Importance and use of corneal biomechanics and its diagnostic utility
Importance and use of corneal biomechanics and its diagnostic utility Open
View article: Inflammatory and genomic interactions within keratoconus susceptible patients: a nationwide registered case–control study
Inflammatory and genomic interactions within keratoconus susceptible patients: a nationwide registered case–control study Open
Purpose This study aimed to investigate the association between variants in the interleukin (IL)-1 gene cluster and susceptibility to keratoconus (KC) in an Iranian population. Methods In the case group, there were 188 KC patients diagnose…
View article: Consenso Latino-americano sobre Lubrificantes Oculares e Olho Seco (LUBOS)
Consenso Latino-americano sobre Lubrificantes Oculares e Olho Seco (LUBOS) Open
O fluido lacrimal possui uma composição complexa que lhe permite cumprir múltiplas funções, como funções ópticas, lubrificantes, imunológicas, endócrinas e neurotróficas, essenciais para a saúde visual. A alteração dos seus componentes, ta…
View article: Application of Artificial Intelligence in Ophthalmology: An Updated Comprehensive Review
Application of Artificial Intelligence in Ophthalmology: An Updated Comprehensive Review Open
Artificial intelligence (AI) holds immense promise for transforming ophthalmic care through automated screening, precision diagnostics, and optimized treatment planning. This paper reviews recent advances and challenges in applying AI tech…
View article: Anterior lamellar corneoscleral keratoplasty for the management of corneal thinning following treatment with mitomycin-C and interferon to treat highly suspected ocular surface squamous neoplasia: a case report
Anterior lamellar corneoscleral keratoplasty for the management of corneal thinning following treatment with mitomycin-C and interferon to treat highly suspected ocular surface squamous neoplasia: a case report Open
A patient presented with corneoscleral thinning five months after the treatment of suspected ocular squamous surface neoplasia with mitomycin-C and interferon. For tectonic and aesthetic purposes, we decided to perform lamellar corneoscler…
View article: Biomechanical and tomographic findings in Brown-McLean syndrome
Biomechanical and tomographic findings in Brown-McLean syndrome Open
View article: Combined Rotating Ultra-High-Resolution Spectral Domain OCT and Scheimpflug Imaging for In Vivo Corneal Optical Biopsy
Combined Rotating Ultra-High-Resolution Spectral Domain OCT and Scheimpflug Imaging for In Vivo Corneal Optical Biopsy Open
Purpose: This article introduces the Pentacam® Cornea OCT (optical coherence tomography). This advanced corneal imaging system combines rotating ultra-high-resolution spectral domain OCT with sub- 2-micron axial resolution and Scheimpflug …
View article: Pressure-Induced Stromal Keratopathy after Surface Ablation Surgery
Pressure-Induced Stromal Keratopathy after Surface Ablation Surgery Open
Introduction: The purpose of this clinical report was to describe an unprecedented case of bilateral pressure-induced stromal keratopathy (PISK) following corneal photorefractive keratectomy, associated with presumed herpetic keratitis, an…
View article: Keratoconus and Corneal Ectasia with Relatively Low Keratometry
Keratoconus and Corneal Ectasia with Relatively Low Keratometry Open
View article: Consenso Latinoamericano de Lubricantes Oculares y Ojo Seco (LUBOS)
Consenso Latinoamericano de Lubricantes Oculares y Ojo Seco (LUBOS) Open
El fluido lagrimal tiene una compleja composición que le permite cumplir múltiples funciones, como por ejemplo ópticas, lubricantes, inmunológicas, endocrinas y neurotróficas, que son indispensables para la salud visual. La alteración de s…
View article: Advanced Surface Ablation in a Patient With Suspect Topography: A Case Report
Advanced Surface Ablation in a Patient With Suspect Topography: A Case Report Open
View article: Assessment of Preoperative Risk Factors for Post-LASIK Ectasia Development [Response to Letter]
Assessment of Preoperative Risk Factors for Post-LASIK Ectasia Development [Response to Letter] Open
View article: Investigation of How Corneal Densitometry Artefacts Affect the Imaging of Normal and Keratoconic Corneas
Investigation of How Corneal Densitometry Artefacts Affect the Imaging of Normal and Keratoconic Corneas Open
Purpose: To investigate corneal densitometry artefacts found in Pentacam Scheimpflug scans and their potential effect on assessing keratoconic (KC) corneas compared to normal (N) corneas. Methods: The current study utilises Pentacam data o…
View article: Scheimpflug-Based Corneal Biomechanical Analysis As A Predictor of Glaucoma in Eyes With High Myopia
Scheimpflug-Based Corneal Biomechanical Analysis As A Predictor of Glaucoma in Eyes With High Myopia Open
Corneal biomechanics demonstrated differences in eyes with glaucoma and mainly in myopic eyes. A biomechanical model based on multivariable logistic regression analysis and adjusted for high myopia was built, with an overall probability of…
View article: Association between obesity and age-related cataract: an updated systematic review and dose–response meta-analysis of prospective cohort studies
Association between obesity and age-related cataract: an updated systematic review and dose–response meta-analysis of prospective cohort studies Open
Objective There are inconsistent findings on the association between obesity and age-related cataract (ARC). This systematic review was done to summarize available findings on the association between obesity [defined by body mass index (BM…
View article: Enhanced Screening for Ectasia Risk: Multimodal Refractive Imaging Observations From the Fellow Unoperated Eye of Patients With Post-Laser In Situ Keratomileusis Ectasia
Enhanced Screening for Ectasia Risk: Multimodal Refractive Imaging Observations From the Fellow Unoperated Eye of Patients With Post-Laser In Situ Keratomileusis Ectasia Open
Purpose: The aim of this study was to report multimodal refractive imaging findings that may predict ectasia susceptibility on nonoperated eyes of patients who developed post-LASIK ectasia in the fellow eye. Study Design: This is a retrosp…
View article: Status refracional: elemento essencial para avaliação de pacientes para cirurgia refrativa da catarata
Status refracional: elemento essencial para avaliação de pacientes para cirurgia refrativa da catarata Open
STATUS REFRACIONAL: DEFINIÇÃO E APLICAÇÃO CONCEITUAL Apesar de tradicionalmente limitado ao sinônimo de refração manifesta e acuidade visual (com e sem correção),(,) o termo "status refracional" se estende à maneira como a ametropia do pac…
View article: Systematic review and meta-analysis of myopia prevalence in Brazilian school children
Systematic review and meta-analysis of myopia prevalence in Brazilian school children Open
Introduction: Myopia is a growing global concern and there is a lack of studies on its prevalence among Brazilian schoolchildren. Methods: This study aimed to determine the prevalence of myopia in Brazilian children aged 3–18 years through…
View article: Vertex distance variability of the Vision-S™ 700 refractors in normal population
Vertex distance variability of the Vision-S™ 700 refractors in normal population Open
Objective: To study vertex-optical distance variation and estimate its impact on manifest refraction. Methods: Prospective study in a private clinic using the Vision-S™ 700 with five forehead positions. Forehead on the third position showe…