Related Experiment Video
Updated: Feb 11, 2026

Preparing Lamellae from Vitreous Biological Samples Using a Dual-Beam Scanning Electron Microscope for Cryo-Electron Tomography
Published on: August 5, 2021
Therapeutic ultrasound. Light and electron microscopic findings in an eye treated for glaucoma
Abstract:
Focused high-intensity (FHI) ultrasound has recently been used to treat advanced glaucoma. This report describes the pathologic findings in the eye of a 30-year-old woman treated with FHI ultrasound for glaucoma. Major findings consisted of highly localized destruction of the pigmented and nonpigmented ciliary epithelium, profound atrophy of the ciliary muscle, and loss of scleral collagen. While the mechanism by which FHI ultrasound reduces intraocular pressure is not completely understood, the histologic effects of ultrasonic radiation are localized to the site of treatment.
Related Concept Videos
Focusing of Light in the Eye
Electron Microscope Tomography and Single-particle Reconstruction
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Glaucoma: Overview
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Finding the Center of Gravity
Cardiovascular System Abnormal Findings I: Inspection and Palpation
Abnormal findings observed during an inspection

