1. Articles from Reza Ghaffari

    1-3 of 3
    1. Ray Tracing versus Thin-Lens Formulas for IOL Power Calculation Using Swept-Source Optical Coherence Tomography Biometry

      Ray Tracing versus Thin-Lens Formulas for IOL Power Calculation Using Swept-Source Optical Coherence Tomography Biometry

      Purpose: To evaluate the ray tracing method's accuracy employing Okulix ray tracing software and thin-lens formulas to calculate intraocular lens (IOL) power using a swept-source optical coherence tomography (SS-OCT) biometer (OA2000). Methods: A total of 188 eyes from 180 patients were included in this study. An OA-2000 optical biometer was used to collect biometric data. The predicted postoperative refraction based on thin-lens formulas including SRK/T, Hoffer Q, Holladay 1, and Haigis formulas and the ray tracing method utilizing the OKULIX software was determined for each patient. To compare the accuracy of approaches, the prediction error and the absolute ...

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    2. Ocular Biometry in the Subtypes of Angle Closure: An Anterior Segment Optical Coherence Tomography Study

      Ocular Biometry in the Subtypes of Angle Closure: An Anterior Segment Optical Coherence Tomography Study

      Purpose To evaluate ocular biometric parameters in different subtypes of angle-closure disease in the Iranian population and compare them with normal eyes. Design Prospective, cross-sectional. Methods In this clinic-based study, 189 eyes of 154 patients consisting of 40 acute angle-closure glaucoma (AACG) eyes, 40 fellow eyes of AACG, 42 chronic angle-closure glaucoma (CACG) eyes, 40 primary angle-closure suspect (PACS) eyes, and 27 normal eyes underwent complete examination including gonioscopy, A-scan biometry, and anterior segment optical coherence tomography. Only 1 eye of CACG, PACS, and control subjects were selected. Main outcome measures included angle opening distance and trabeculo-iris space area at ...

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    3. Evaluation of Conjunctival Graft Thickness after Pterygium Surgery by Anterior Segment Optical Coherence Tomography

      Evaluation of Conjunctival Graft Thickness after Pterygium Surgery by Anterior Segment Optical Coherence Tomography
      Background: To evaluate changes in thickness of the conjunctival graft after pterygium surgery by anterior segment optical coherence tomography (AS-OCT). Materials and Methods: Eleven eyes of 11 patients with primary nasal pterygium underwent excision followed by free conjunctival autograft. Imaging with AS-OCT was performed at 1 week, 1 month and 3 months after surgery to measure thickness of the conjunctival graft at 1, 2 and 3 mm posterior to the scleral spur. As the control, thickness of the normal bulbar conjunctival epithelium in the temporal area was also measured at the same locations. Results: Average thickness of the graft decreased ...
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    1-3 of 3
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    1. (1 articles) Northwestern University
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    Evaluation of Conjunctival Graft Thickness after Pterygium Surgery by Anterior Segment Optical Coherence Tomography Ocular Biometry in the Subtypes of Angle Closure: An Anterior Segment Optical Coherence Tomography Study Ray Tracing versus Thin-Lens Formulas for IOL Power Calculation Using Swept-Source Optical Coherence Tomography Biometry Influence of scan direction on subfoveal choroidal vascularity index using optical coherence tomography Subthreshold Nanosecond Laser for Non-resolving Central Serous Chorioretinopathy: A Double-masked Sham-controlled Randomised Trial Optical Coherence Tomography Angiography (OCTA) to Assess Cardiac Output and Cerebral Perfusion at the Time of Children's Cardiac Surgery Recent advances in optical coherence tomography for anterior segment imaging in small animals and their clinical implications Intraoperative optical coherence tomography-guided donor corneal tissue assessment and preparation Peripapillary and fovea avascular zone optical coherence tomography angiography parameters in exfoliation glaucoma versus primary open-angle glaucoma versus healthy eyes Comparison of the proposed DCNN model with standard CNN architectures for retinal diseases classification Massachusetts General Hosptial Receives NIH Grant for Screening for Barrett's Esophagus Progressors with Multimodality Tethered Capsule Image-Guided Biopsy Duke University Receives NIH Grant for Robotic Point-of-Care OCT