Arteritic Orbital Ischemia Producing Afferent and Efferent Pupillary Defects

Mariam Hussain1, Ashwini Kini1, Bayan Al Othman1

  • 1Texas A&M College of Medicine (MH, AGL), Bryan, Texas; Department of Ophthalmology (AK, BAO, CPP, HL, AGL), Blanton Eye Institute, Houston Methodist Hospital, Houston, Texas; Department of Pathology and Genomic Medicine, Ocular Pathology (CPP), Houston Methodist Hospital, Houston, Texas; Community Retina Group (HL), Houston, Texas; The Houston Methodist Research Institute (AGL), Houston Methodist Hospital, Houston, Texas; Departments of Ophthalmology, Neurology, and Neurosurgery (AGL), Weill Cornell Medicine, New York, New York; Department of Ophthalmology (AGL), University of Texas Medical Branch, Galveston, Texas; University of Texas MD Anderson Cancer Center (AGL), Houston, Texas; Department of Ophthalmology (AGL), The University of Iowa Hospitals and Clinics, Iowa City, Iowa.

Related Concept Videos

Coronoid-Temporalis Pedicled Flap for Orbital Floor Defect Reconstruction06:32

Coronoid-Temporalis Pedicled Flap for Orbital Floor Defect Reconstruction

This protocol presents a novel coronoid-temporalis pedicled flap (CTPF) technique for reconstructing small-to-medium orbital floor defects. CTPF avoids microvascular risks while maintaining biomechanical stability. Clinical cases demonstrate effective structural restoration, reduced complications, and preserved facial symmetry, offering a viable alternative to traditional grafts or alloplastic materials.
607
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

sp3d and sp3d 2 Hybridization
48.1K
Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
65.9K
Atomic Orbitals02:44

Atomic Orbitals

An atomic orbital represents the three-dimensional regions in an atom where an electron has the highest probability to reside. The radial distribution function indicates the total probability of finding an electron within the thin shell at a distance r from the nucleus. The atomic orbitals have distinct shapes which are determined by l, the angular momentum quantum number. The orbitals are often drawn with a boundary surface, enclosing densest regions of the cloud.
43.2K
An Orbital Shaking Culture of Mammalian Cells in O-shaped Vessels to Produce Uniform Aggregates05:40

An Orbital Shaking Culture of Mammalian Cells in O-shaped Vessels to Produce Uniform Aggregates

Here we present a protocol for using O-shaped vessels, specialized for suspension cultures of cellular aggregates, with orbital shaking. The HEK293 cells grown in this bag form more homogeneous aggregates than those grown in conventional culture...
10.1K
Pupillary Response as Assessment of Effective Seizure Induction by Electroconvulsive Therapy04:51

Pupillary Response as Assessment of Effective Seizure Induction by Electroconvulsive Therapy

Pupillary responses (light reflex) were measured for assessment of adequate seizure induction by electroconvulsive therapy using an automated infrared pupillometer immediately after electrical stimulation. Constriction ratio was calculated and compared with seizure...
10.2K