1. Articles from Ramanjit Sihota

    1-6 of 6
    1. Clinical, ultrasonographic and optical coherence tomography correlation of optic nerve head cupping in glaucoma patients

      Clinical, ultrasonographic and optical coherence tomography correlation of optic nerve head cupping in glaucoma patients

      Purpose: To ascertain if ultrasound (USG) B-scan examination of the optic nerve head (ONH) can be a useful tool to diagnose and quantify glaucomatous cupping. Methods: A cross-sectional observational study of 48 eyes of 48 patients with clear ocular media and cup-disc ratio of (CDR) ≥0.6 were included. The disc was studied by + 90D examination, USG B-scan and ONH Optical coherence tomography (OCT) by three masked observers. Observer-1 assessed the clinical CDR, observer-2recordedopticcup diameter on USG B-scan and observer-3performed ONH OCT to note the software computed average CDR. Measurements of cupping obtained by these 3 methods were compared and ...

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    2. COMPARATIVE EVALUATION OF ANTERIOR SEGMENT OPTICAL COHERENCE TOMOGRAPHY, ULTRASOUND BIOMICROSCOPY, AND INTRAOCULAR PRESSURE CHANGES AFTER PANRETINAL PHOTOCOAGULATION BY PASCAL AND CONVENTIONAL LASER

      COMPARATIVE EVALUATION OF ANTERIOR SEGMENT OPTICAL COHERENCE TOMOGRAPHY, ULTRASOUND BIOMICROSCOPY, AND INTRAOCULAR PRESSURE CHANGES AFTER PANRETINAL PHOTOCOAGULATION BY PASCAL AND CONVENTIONAL LASER

      Purpose: To compare intraocular pressure, anterior segment optical coherence tomography, and ultrasound biomicroscopy parameters over 3 months after panretinal photocoagulation (PRP) for proliferative diabetic retinopathy after 1 of 2 sittings by conventional laser (half PRP) and a single sitting of Pattern Scan Laser (PASCAL) PRP. Methods: This was a prospective, randomized, interventional study. All tests were performed at baseline, and at 1, 6, and 24 hours, and 1, 4, 8, and 12 weeks after PRP. Results: The intraocular pressure at 1 hour and 6 hours after PRP was significantly raised in both groups. Mean intraocular pressure was 21.17 ± 4 ...

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    3. Clinical utility of anterior segment swept-source optical coherence tomography in glaucoma

      Clinical utility of anterior segment swept-source optical coherence tomography in glaucoma

      Optical coherence tomography (OCT), a noninvasive imaging modality that uses low-coherence light to obtain a high-resolution cross-section of biological structures, has evolved dramatically over the years. The Swept-source OCT (SS-OCT) makes use of a single detector with a rapidly tunable laser as a light source. The Casia SS-1000 OCT is a Fourier-domain, SS-OCT designed specifically for imaging the anterior segment. This system achieves high resolution imaging of 10΅m (Axial) and 30΅m (Transverse) and high speed scanning of 30,000 A-scans per second. With a substantial improvement in scan speed, the anterior chamber angles can be imaged 360 degrees ...

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    4. Anterior Segment Optical Coherence Tomography Characteristics in an Asian Population

      Anterior Segment Optical Coherence Tomography Characteristics in an Asian Population

      urpose: To quantify the angle characteristics in an Indian population, and determine the prevalence of eyes at risk of angle closure.Materials and Methods: This population-based cohort study was carried out to evaluate individuals, 40 to 59 years of age, clinically. The individuals underwent anterior segment optical coherence tomography of their right eyes in the horizontal meridian, using the enhanced protocol. Results: The mean scleral spur angle for the population was 24.2±10.2 degrees, and a manually measured angle recess was 23.2±10.2 degrees, with a κ value of agreement of 0.78, 85.7%. An ...

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    5. Temporal Retinal Thickness in Eyes With Glaucomatous Visual Field Defects Using Optical Coherence Tomography

      Temporal Retinal Thickness in Eyes With Glaucomatous Visual Field Defects Using Optical Coherence Tomography
      Purpose: To evaluate the temporal macular retinal thickness in normal, early, and advanced glaucomatous eyes using optical coherence tomography 3 (OCT-3) and correlate the superior-to-inferior retinal thickness (S/I RT) ratio with corresponding field defects in early and advanced glaucoma patients. Patients and Methods: Forty normal eyes, 40 eyes with early glaucomatous visual field defects, and 33 eyes with advanced visual field defects were included. All participants underwent complete ocular and visual field examinations and OCT-3 imaging on the same day. A 3x3 mm area temporal to the foveal reflex was scanned with the OCT-3 using 6 horizontal, equally spaced ...
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    1-6 of 6
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    1. (1 articles) Singapore Eye Research Institute
    2. (1 articles) L V Prasad Eye Institute
    3. (1 articles) Tomey Corporation
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    5. (1 articles) Jichi Medical University
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    Temporal Retinal Thickness in Eyes With Glaucomatous Visual Field Defects Using Optical Coherence Tomography Anterior Segment Optical Coherence Tomography Characteristics in an Asian Population Clinical utility of anterior segment swept-source optical coherence tomography in glaucoma COMPARATIVE EVALUATION OF ANTERIOR SEGMENT OPTICAL COHERENCE TOMOGRAPHY, ULTRASOUND BIOMICROSCOPY, AND INTRAOCULAR PRESSURE CHANGES AFTER PANRETINAL PHOTOCOAGULATION BY PASCAL AND CONVENTIONAL LASER Interocular asymmetry in choroidal thickness in healthy Indian population using swept-source optical coherence tomography Clinical, ultrasonographic and optical coherence tomography correlation of optic nerve head cupping in glaucoma patients Correlation between optical coherence tomography, multifocal electroretinogram findings and visual acuity in diabetic macular edema Ciliary body length revisited by anterior segment optical coherence tomography: implications for safe access to the pars plana for intravitreal injections Evaluation of retinal vascular structure after epiretinal membrane surgery by optical coherence tomography angiography Bivalirudin vs. Heparin on Radial Artery Thrombosis during Transradial Coronary Intervention: An Optical Coherence Tomography Study Superficial Calcification With Rotund Shape Is Associated With Carotid Plaque Rupture: An Optical Coherence Tomography Study Longitudinal retinal layer changes in preclinical Alzheimer’s disease