1. Articles from Hang Shi

    1-7 of 7
    1. Dimensions of the limbus-ciliary sulcus region by optical coherence tomography and correlation study in a large population

      Dimensions of the limbus-ciliary sulcus region by optical coherence tomography and correlation study in a large population

      Purpose: To assess the dimensions of the limbus-sulcus region measured by swept-source optical coherence tomography (SS-OCT) and correlation study in a large healthy population. Setting: Centro Internacional de Oftalmología Avanzada. Design: Cross-sectional study. Methods: The dimensions of the limbus-sulcus region were measured in 625 eyes of 625 subjects in the temporal and nasal quadrants using a SS-OCT. The limbus-sulcus distance (LSD), the posterior iris line-ocular surface to limbus distance (PIOLD) and the angle to sulcus distance (ASD) were measured. These distances were then assessed for correlations with the factors age, sex, refractive error, anterior chamber angle (ACA), ciliary muscle ...

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    2. Assessment of the anterior scleral thickness in central serous chorioretinopathy patients by optical coherence tomography

      Assessment of the anterior scleral thickness in central serous chorioretinopathy patients by optical coherence tomography

      Purpose: To assess the anterior scleral thickness (AST) and describe the presence of a visible supraciliary space (SCS) in central serous chorioretinopathy (CSC) patients by swept-source optical coherence tomography (SS-OCT). Study design: Cross-sectional comparative study. Material and methods: Three groups were studied: 1) 64 eyes of 54 patients with CSC with persistent subretinal fluid (SRF); 2) 42 fellow eyes of CSC patients without SRF; 3) 65 eyes of 65 controls matched by age, sex and axial length (AL). The AST was measured in the temporal and nasal quadrants at 0, 1, and 2 mm from the scleral spur by SS-OCT ...

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    3. Impact of age, sex and refractive error on conjunctival and Tenon’s capsule thickness dimensions by swept-source optical coherence tomography in a large population

      Impact of age, sex and refractive error on conjunctival and Tenon’s capsule thickness dimensions by swept-source optical coherence tomography in a large population

      Purpose To evaluate conjunctival and Tenon’s capsule thickness (CTT) in a large healthy population using swept-source optical coherence tomography (SS-OCT), investigating the impact of age, sex and refractive error. Methods 630 healthy participants underwent a complete ophthalmological examination. CTT was manually measured in the temporal and nasal quadrants at 0, 1, 2 and 3 mm from the scleral spur using SS-OCT (CTT0, CTT1, CTT2 and CTT3, respectively). These dimensions were then assessed for associations in a multivariate regression model with age, sex, refractive error and anterior scleral thickness (AST). The reproducibility of the CTT measurements was determined in 30 ...

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    4. Anterior scleral thickness dimensions by swept-source optical coherence tomography

      Anterior scleral thickness dimensions by swept-source optical coherence tomography

      Clinical relevance : Given the association of scleral characteristics with many ophthalmological diseases, there is an important need to measure the anterior scleral thickness (AST). Background : This study examined the AST by swept-source optical coherence tomography (SS-OCT) in a large healthy population, assessing also the reproducibility of AST measurements and the correlation with different parameters. Methods : Cross-sectional study in 605 eyes of 605 subjects. AST measurements were made in the temporal and nasal quadrants at 1 (AST1) and 3 mm (AST3) from the scleral spur using SS-OCT. These dimensions were then assessed for associations in a multivariate model with the factors ...

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    5. Ciliary muscle dimensions measured by swept-source optical coherence tomography in eyes with primary open-angle glaucoma and healthy eyes

      Ciliary muscle dimensions measured by swept-source optical coherence tomography in eyes with primary open-angle glaucoma and healthy eyes

      Purpose To compare in vivo swept-source optical coherence tomography (SS-OCT) measurements of the ciliary muscle (CM) in patients with primary open-angle glaucoma (POAG) and healthy subjects, and examine correlations between CM dimensions and several covariates. Methods This was a cross-sectional study of the right eyes of 181 subjects: 89 POAG patients and 92 healthy subjects. Using the Triton SS-OCT device (Topcon, Tokyo, Japan), CM length (CML), area (CMA) and thickness measured 1000 µm (CMT1), 2000 µm (CMT2) and 3000 µm (CMT3) from the scleral spur were determined in the temporal and nasal quadrants. POAG patients were subjected to visual field ...

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    6. Normative database of peripapillary vessel density measured by optical coherence tomography angiography and correlation study

      Normative database of peripapillary vessel density measured by optical coherence tomography angiography and correlation study

      Purpose: To provide a normative data set of swept-source optical coherence tomography angiography (SS-OCTA) peripapillary vessel density (VD) measurements and assess correlations with age, gender, disc area and axial length (AL). Material and Methods: This was an observational cross-sectional study conducted on 346 right eyes of healthy subjects. Peripapillary SS-OCTA VD measurements were obtained in the retinal superficial capillary plexus (SCP), deep capillary plexus (DCP), and choriocapillaris (CC) in all four quadrants using the Triton device (Topcon, Nagoya, Japan). AL measurements were made by optical biometry. Results: Mean participant age was 37.7 ±19.8 years (range 5 – 83), AL ...

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    1-7 of 7
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    Normative database of peripapillary vessel density measured by optical coherence tomography angiography and correlation study Ciliary muscle dimensions measured by swept-source optical coherence tomography in eyes with primary open-angle glaucoma and healthy eyes Prevalence of a visible supraciliary space by swept-source optical coherence tomography in a large healthy population Anterior scleral thickness dimensions by swept-source optical coherence tomography Impact of age, sex and refractive error on conjunctival and Tenon’s capsule thickness dimensions by swept-source optical coherence tomography in a large population Assessment of the anterior scleral thickness in central serous chorioretinopathy patients by optical coherence tomography Dimensions of the limbus-ciliary sulcus region by optical coherence tomography and correlation study in a large population The truth about invisible posterior vitreous structures Increased Macrophage-like Cell Density in Retinal Vein Occlusion as Characterized by en Face Optical Coherence Tomography The Influence of Eyelid Position and Environmental Conditions on the Corneal Changes in Early Postmortem Interval: A Prospective, Multicentric OCT Study The Use of Optical Coherence Tomography for Gross Examination and Sampling of Fixed Breast Specimens: A Pilot Study The Role of Widefield and Ultra Widefield Optical Coherence Tomography in the Diagnosis and Management of Vitreoretinal Diseases