Related Experiment Video
Updated: Jul 15, 2025
06:29
Comparing Objective Conjunctival Hyperemia Grading and the Ocular Surface Disease Index Score in Dry Eye Syndrome During COVID-19
Published on: May 25, 2022
2.4K
Ocular and Neuro-ophthalmic Manifestations Post COVID-19 Infection
Bipin Bista1, Reena Yadav2, Sharad Gupta2
1B.P. Koirala Lions Center for Ophthalmic Studies, IOM, TUTH, Nepal.
Journal of Nepal Health Research Council
|September 24, 2023
Summary
A COVID-19 patient developed a dendritic ulcer and lateral rectus palsy, causing double vision. Prompt antiviral and vision therapy led to improvement, highlighting the need for ophthalmic evaluation in COVID-19 cases.
Area of Science:
- Ophthalmology
- Neurology
- Infectious Diseases
Background:
- COVID-19 has been linked to various neurological complications.
- Ocular manifestations, though less common, require thorough investigation.
Observation:
- A 39-year-old male post-COVID-19 infection presented with a left eye dendritic corneal ulcer.
- He subsequently developed diplopia and restricted extraocular motility (levo-lateral gaze), indicative of lateral rectus palsy.
- Slit lamp examination confirmed the dendritic corneal lesion and superficial punctate keratitis.
Findings:
- The patient experienced gradual improvement with topical/systemic antiviral therapy and orthoptic exercises.
- This case suggests a potential neuro-ophthalmic link to COVID-19, specifically affecting cranial nerves controlling eye movement.
Implications:
- Symptomatic COVID-19 patients warrant comprehensive neurological and ophthalmic assessments.
- Early diagnosis and management of neuro-ophthalmic complications are crucial for patient recovery.
- Further research is needed to elucidate the clinicopathological mechanisms of COVID-19's impact on the neurological system.
More Related Videos
12:23Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients
Published on: April 14, 2014
14.1K
04:00Author Spotlight: Establishing a Practical and Cost-Effective Protocol for Corneal Sensitivity Testing in Clinical Settings
Published on: August 2, 2024
2.0K
Related Concept Videos
01:25Glaucoma: Overview
614
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
614
01:17Accessory Structures of the Eye
1.6K
Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
1.6K
01:28Angle Closure Glaucoma: Treatment
555
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
555
01:27Open Angle Glaucoma: Treatment
474
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
474
01:22Photoreceptors and Visual Pathways
6.1K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
6.1K
01:24Prosopagnosia
198
Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
198