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Agreement of intraocular pressure measurement by scleral Schiotz and Goldmann applanation tonometer.
Sci Rep
November 2024
Department of Community Medicine, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth (SBV), Deemed to be University, Puducherry, India.
Article Synopsis
- The study aimed to explore the agreement between intraocular pressure (IOP) measured with a scleral Schiotz tonometer and the more commonly used Goldmann applanation tonometer (GAT).
- It involved 155 patients, measuring IOP through both methods, and analyzed factors like age and central corneal thickness to see their impact on IOP readings.
- Results indicated that the scleral measurements aligned well with GAT values, suggesting that scleral tonometry could serve as a reliable alternative for measuring IOP in clinical settings.
Quantifying noise limitations of neural network segmentations in high-resolution transmission electron microscopy.
Ultramicroscopy
November 2023
Computational Atomic-scale Materials Design (CAMD), Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark. Electronic address:
Motivated by the need for low electron dose transmission electron microscopy imaging, we report the optimal frame dose (i.e.e/Å) range for object detection and segmentation tasks with neural networks.
View Article and Find Full Text PDFAnatomical and physiological considerations in scleral lens wear: Intraocular pressure.
Cont Lens Anterior Eye
February 2023
University of Houston College of Optometry, The Ocular Surface Institute, Houston, TX, USA. Electronic address:
Intraocular pressure (IOP) is maintained through complex and interrelated systems which control aqueous production and drainage, and it has been suggested that scleral lens (SL) wear may disrupt these vital homeostatic processes. This review provides an overview of anatomical and physiological processes that control IOP, identifies potential effects of SLs on these regulatory mechanisms, and examines studies that have attempted to quantify the effect of SLs on IOP. Lack of access to the cornea during SL wear makes accurate assessment of IOP challenging; therefore, a range of different assessment techniques and instruments have been employed to quantify IOP during and following SL wear.
View Article and Find Full Text PDFChanges in Scleral Tonometry and Anterior Chamber Angle after Short-term Scleral Lens Wear.
Optom Vis Sci
September 2020
Cornea and Contact Lens Department, De Lens Family Eye and Vision Care Center, Abuja, Nigeria.
Significance: Scleral lens wear can alter aqueous fluid and anterior chamber angle dynamics, leading to changes in intraocular pressure (IOP). However, there is limited information supporting this relationship between scleral lens wear, anterior chamber angle (ACA), and IOP changes in an black African population.
Purpose: The purpose of this study was to compare scleral IOP and ACA before, during, and after 4 hours of scleral lens wear in healthy neophyte scleral lens wearers from an black African population.
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