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Related Concept Videos

Standard Precaution01:26

Standard Precaution

2.6K
Standard precautions are the minimum infection control safeguards used while caring for all patients, irrespective of their disease condition. They help prevent the spread of common infectious microorganisms to healthcare workers, patients, and visitors in all healthcare settings.
Hand hygiene is the most crucial means to prevent the transmission of disease. Employers are legally required to provide their workers with personal protective equipment (PPE) to minimize exposure or contact with...
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Transmission-based Precautions II: Airborne and Protective Environment01:25

Transmission-based Precautions II: Airborne and Protective Environment

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Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions.
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
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Accessory Structures of the Eye01:17

Accessory Structures of the Eye

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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...
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Transmission-based Precautions I: Contact, Enteric, and Droplets01:17

Transmission-based Precautions I: Contact, Enteric, and Droplets

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Transmission-based precautions are for patients known to be infected or suspected to be infected or colonized with organisms that pose a significant risk to others. Some transmission-based precautions include contact, enteric, and droplet.
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
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PPE Use in Healthcare Settings I: Donning01:22

PPE Use in Healthcare Settings I: Donning

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Donning PPE must be completed before contact with the patient. This process protects from infectious agents. The sequence and action included in each donning are critical, and the steps must be systematic to avoid exposure to pathogens. The institutional policy also needs to be followed while donning PPE. The pre-donning preparations are gathering equipment, inspecting the PPE equipment for tears, holes, or damage, removing jewelry, removing any garments below the elbows, and tying the hair...
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Personal Protective Equipment01:20

Personal Protective Equipment

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Personal protective equipment (PPE) is unique clothing or equipment worn by an employee to minimize or prevent exposure to infectious agents. PPE creates a barrier between the employee and the infectious materials. PPE must be readily available in the patient care area. PPE includes gloves, gowns and aprons, masks and respirators, goggles, face shields, shoes, and headcovers:
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Related Experiment Video

Updated: Dec 23, 2025

Nasal Brushing Sampling and Processing Using Digital High Speed Ciliary Videomicroscopy – Adaptation for the COVID-19 Pandemic
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Nasal Brushing Sampling and Processing Using Digital High Speed Ciliary Videomicroscopy – Adaptation for the COVID-19 Pandemic

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COVID-19: Limiting the Risks for Eye Care Professionals.

Soumen Sadhu1, Rupesh Agrawal2,3,4, Richa Pyare5

  • 1Department of Optometry, The Sankara Nethralaya Academy, Unit of Medical Research Foundation, Sankara Nethralaya , Chennai, India.

Ocular Immunology and Inflammation
|April 21, 2020
PubMed
Summary

The SARS-CoV-2 virus, causing COVID-19, may transmit through tears, posing risks to eye care professionals. This review examines evidence and protective strategies for ophthalmic facilities.

Keywords:
COVID-19Coronavirus disease 2019SARS-CoV-2infection controlsevere acute respiratory syndrome coronavirus 2

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Comparing Objective Conjunctival Hyperemia Grading and the Ocular Surface Disease Index Score in Dry Eye Syndrome During COVID-19
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Comparing Objective Conjunctival Hyperemia Grading and the Ocular Surface Disease Index Score in Dry Eye Syndrome During COVID-19

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Anterior Segment Organ Culture Platform for Tracking Open Globe Injuries and Therapeutic Performance
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Area of Science:

  • Ophthalmology
  • Infectious Diseases
  • Virology

Background:

  • COVID-19 pandemic caused by SARS-CoV-2.
  • Human-to-human transmission via respiratory droplets.
  • Potential for ocular surface transmission of SARS-CoV-2 is debated.

Purpose of the Study:

  • Review evidence on SARS-CoV-2 detection in human tears.
  • Discuss reported transmission routes.
  • Propose protective measures for ophthalmic settings.

Main Methods:

  • Narrative review of current scientific literature.
  • Analysis of anatomical and physiological factors.
  • Examination of reported healthcare worker transmissions.

Main Results:

  • Ocular surface exposure as a potential route for respiratory disease acquisition.
  • Ophthalmic professionals identified as high-risk group.
  • Evidence on SARS-CoV-2 presence in tears and transmission forms discussed.

Conclusions:

  • Ocular transmission of SARS-CoV-2 requires further investigation.
  • Implementation of protective strategies is crucial in ophthalmic care.
  • Protecting healthcare personnel and patients from nosocomial transmission is paramount.