Purpose: To compare the outcomes of astigmatic laser in-situ keratomileusis (LASIK) procedures between two different platforms using J0 and J45 vector analysis.
Methods: Patients were divided into four groups, depending on the type of astigmatism and laser platform on which they were treated. Astigmatism was between 2 and 7 diopters (D). One hundred and thirty-five patients with myopic astigmatism (246 eyes) and 102 patients with mixed astigmatism (172 eyes) underwent unremarkable LASIK correction on Wavelight Allegretto Eye-Q 400Hz and Schwind Amaris 750S laser platform. The preoperative and postoperative sphere, negative cylinder [C] and axis (ø) of manifest refractions were subjected to vector analysis by calculations of the standard J0 (cos [4π(ø-90)/360]xC/2) and J45 (sin[4π(ø-90)/360]xC/2).
Results: Reporting the key results, we found J0 significantly reduced after LASIK in both groups (p < 0.001) but not J45. There was no significant association between individual pairs of pre and postoperative J0 & J45 values. There was no significant difference between the outcomes of the two platforms.
Conclusions: Wavelight Allegretto 400Hz and Schwind Amaris 750S showed excellent results for treating patients with astigmatism, regardless whether it is mixed or myopic astigmatism. The J45 did not reduce significantly possibly because of the low number of eyes with oblique astigmatism. There was no genuine difference post-operatively between groups treated on two different laser platforms according to the vector analyses.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00417-015-3177-x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Real-Time 2D Phase-Contrast MRI to Assess Cardiac- and Respiratory-Driven CSF Movement in Normal Pressure Hydrocephalus.
J Neuroimaging
December 2024
Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.
Background And Purpose: In idiopathic normal pressure hydrocephalus (iNPH) patients, cerebrospinal fluid (CSF) flow is typically evaluated with a cardiac-gated two-dimensional (2D) phase-contrast (PC) MRI through the cerebral aqueduct. This approach is limited by the evaluation of a single location and does not account for respiration effects on flow. In this study, we quantified the cardiac and respiratory contributions to CSF movement at multiple intracranial locations using a real-time 2D PC-MRI and evaluated the diagnostic value of CSF dynamics biomarkers in classifying iNPH patients.
View Article and Find Full Text PDFIdentifying the Knowledge and Capacity Gaps in Southeast Asian Insect Conservation.
Ecol Lett
January 2025
Asian School of the Environment, Nanyang Technological University, Singapore, Singapore.
Insects represent most of terrestrial animal biodiversity, and multiple reports suggest that their populations are declining globally due to anthropogenic impacts. Yet, a high proportion of insect species remain undescribed and limited data on their population dynamics hamper insect conservation efforts. This is particularly critical in tropical biodiversity hotspots such as Southeast Asia.
View Article and Find Full Text PDFImpaired interhemispheric synchrony in patients with iridocyclitis and classification using machine learning: an fMRI study.
Front Immunol
December 2024
Department of ophthalmology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China.
Background: This study examined the interhemispheric integration function pattern in patients with iridocyclitis utilizing the voxel-mirrored homotopic connectivity (VMHC) technique. Additionally, we investigated the ability of VMHC results to distinguish patients with iridocyclitis from healthy controls (HCs), which may contribute to the development of objective biomarkers for early diagnosis and intervention in clinical set.
Methods: Twenty-six patients with iridocyclitis and twenty-six matched HCs, in terms of sex, age, and education level, underwent resting-state functional magnetic resonance imaging (fMRI) examinations.
Surfeit 4 regulates aerobic glycolysis to enhanced proliferation, tumor stemness, invasion, and metastasis in oral squamous cell carcinoma.
Cytojournal
November 2024
Department of Pathology, Xingtai Medical College, Xingtai, China.
Objective: Oral squamous cell carcinoma (OSCC) is a common malignant tumor worldwide. Surfeit 4 (SURF4) is a member of the surfeit gene family and plays a regulatory role in various cellular processes, such as protein transport and lipid metabolism. Therefore, this study aims to investigate the regulatory role and mechanisms of SURF4 in OSCC.
View Article and Find Full Text PDFNuclear receptor subfamily 4 group a member 1 eases angiotensin II-arose oxidative stress in vascular smooth muscle cell by boosting nucleotide-binding oligomerization domain-like receptor family caspase recruitment domain containing 3 transcription.
Cytojournal
November 2024
The Third School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China.
Objective: Hypertension significantly contributes to morbidity and mortality. Nuclear receptor subfamily 4 group a member 1 (Nur77) participates in regulating oxidative stress, but the mechanism in hypertension remains unclear. This study aimed to explore the function of Nur77 in oxidative stress induced by Angiotensin II (Ang II) in vascular smooth muscle cells (VSMCs) in hypertension.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!