• About
  • Subscribe
  • Advertise
  • Contact
Friday, June 13, 2025
Newsletter
SUBSCRIBE
  • Latest News
  • All Sections
    • Ophthalmic insights
      • Policy & regulation
      • Company updates & acquisitions
      • Research
      • Clinical trials
      • Workforce
      • Product approvals
      • Conferences
      • Opinion
      • Indigenous eye health
      • Retail
    • Eye disease
      • Dry eye
      • Myopia
      • Cataract
      • Glaucoma
      • Macular disease – AMD
      • Diabetic eye disease
      • Inherited retinal disease
      • Corneal disease
      • Presbyopia
      • Eye infections
    • Ophthalmic Careers
      • New appointments
      • Industry profiles
      • Graduates
    • Ophthalmic organisations
      • Regulators
      • Optometry networks
      • Private ophthalmology clinics
      • Associations
      • Patient support bodies
      • Eye research institutions
      • Optometry schools
      • Optical Dispensing trainers
      • Medical schools
      • RANZCO
  • Features
    • Report
    • Soapbox
  • Ophthalmic education
    • CPD – Optometry
    • Optical Dispensing
    • Orthoptics Australia
    • Practice management
  • Products
    • Ophthalmic Treatments
      • Ophthalmic lenses
      • Lens treatments
      • Myopia interventions
      • Light-based therapy
      • Minimally invasive glaucoma surgery (MIGS)
      • Gene therapy
      • Laser treatments
      • Supplements
      • Eyewear & frames
      • Behavioural optometry/vision training
      • Contact lenses
      • Anti-VEGF
      • Intraocular lenses (IOLs)
      • Pharmaceuticals & consumables
    • Ophthalmic equipment & diagnostics
      • Biometry – axial length
      • Perimetry & visual fields
      • OCT
      • Phoropter
      • Autorefractor
      • Tonometry
      • Topography
      • Multimodal imaging
      • Retinal imaging
      • Anterior segment imaging
      • Software & data management
      • Microscopes
      • Slit lamps
      • Lens edging
      • Stands, chairs and tables
      • Ultrasound
      • Dry eye diagnostics
      • Low vision aids
  • Research
  • Classifieds
No Results
View All Results
  • Latest News
  • All Sections
    • Ophthalmic insights
      • Policy & regulation
      • Company updates & acquisitions
      • Research
      • Clinical trials
      • Workforce
      • Product approvals
      • Conferences
      • Opinion
      • Indigenous eye health
      • Retail
    • Eye disease
      • Dry eye
      • Myopia
      • Cataract
      • Glaucoma
      • Macular disease – AMD
      • Diabetic eye disease
      • Inherited retinal disease
      • Corneal disease
      • Presbyopia
      • Eye infections
    • Ophthalmic Careers
      • New appointments
      • Industry profiles
      • Graduates
    • Ophthalmic organisations
      • Regulators
      • Optometry networks
      • Private ophthalmology clinics
      • Associations
      • Patient support bodies
      • Eye research institutions
      • Optometry schools
      • Optical Dispensing trainers
      • Medical schools
      • RANZCO
  • Features
    • Report
    • Soapbox
  • Ophthalmic education
    • CPD – Optometry
    • Optical Dispensing
    • Orthoptics Australia
    • Practice management
  • Products
    • Ophthalmic Treatments
      • Ophthalmic lenses
      • Lens treatments
      • Myopia interventions
      • Light-based therapy
      • Minimally invasive glaucoma surgery (MIGS)
      • Gene therapy
      • Laser treatments
      • Supplements
      • Eyewear & frames
      • Behavioural optometry/vision training
      • Contact lenses
      • Anti-VEGF
      • Intraocular lenses (IOLs)
      • Pharmaceuticals & consumables
    • Ophthalmic equipment & diagnostics
      • Biometry – axial length
      • Perimetry & visual fields
      • OCT
      • Phoropter
      • Autorefractor
      • Tonometry
      • Topography
      • Multimodal imaging
      • Retinal imaging
      • Anterior segment imaging
      • Software & data management
      • Microscopes
      • Slit lamps
      • Lens edging
      • Stands, chairs and tables
      • Ultrasound
      • Dry eye diagnostics
      • Low vision aids
  • Research
  • Classifieds
No Results
View All Results
Home Local

Study examines ocular transmission of COVID-19

by Myles Hume
March 30, 2020
in Local, News, Ophthalmology, Optometry, Research
Reading Time: 2 mins read
A A
Share on FacebookShare on Twitter

Researchers investigating links between COVID-19 and the eye have found there is a low risk of transmission via tears, after other studies established a link between the virus and conjunctivitis.

In a new study published last week in Ophthalmology, the journal of the American Academy of Ophthalmology (AAO), scientists from the National University Hospital (NUH) in Singapore said there was uncertainty surrounding ocular transmission of COVID-19.

Lead author Dr Ivan Seah, from NUH, worked with colleagues at the National Centre for Infectious Diseases and Dr Rupesh Agrawal, from Tan Tock Seng Hospital, to assess the viral shedding and infectivity of tears in coronavirus disease in 64 tear samples collected from 17 infected patients between day three to day 20 from initial symptoms.

Neither viral culture nor reverse transcription polymerase chain reaction detected the virus, suggesting a low risk of ocular transmission.

Seah also took samples from the back of the nose and throat of patients enrolled in the study. While their tears were clear of virus, their noses and throats were said to be teeming with COVID-19.

However, the research team noted one important caveat: none of the patients in the study had conjunctivitis.

Health officials believe conjunctivitis develops in 1-3% of people with coronavirus. The AAO has also highlighted two recent studies in Journal of Medical Virology and New England Journal of Medicine that suggest the virus can cause conjunctivitis, meaning transmission by aerosol contact with the conjunctiva could be possible.

Seah concluded that his team’s findings, coupled with the low incidence of conjunctivitis among infected patients, suggest that the risk of virus transmission through tears is low.

He hopes their work will guide more research into preventing virus transmission through more significant routes, such as droplets and faecal-oral spread.

Tags: AAOAmerican Academy of OphthalmologycoronavirusCOVID-19National Centre for Infectious DiseasesNational University Hospitalophthalmologyteartransmission

Related Posts

Advanced practice orthoptists Kylie Robinson (left) and Debra Gleeson have enjoyed the extra training and responsibility in the Eye and Ear pilot: Image: Eye and Ear.

Eye and Ear pilot gives orthoptists greater scope of practice

by Staff Writer
June 13, 2025

A new pilot program in the Royal Victorian Eye and Ear Hospital’s Acute Ophthalmology Services is boosting the clinic’s efficiency...

Victorian Virtual Specialist Consults

Optometrists can now access ophthalmology advice via Victorian Virtual Specialist Consults service

by Staff Writer
June 13, 2025

Optometrists can now access the Victorian Virtual Specialist Consults (VVSC) service for online access to an ophthalmologist for advice on...

The Dry Eye Society is holding training for its members in Brisbane in July.  Image: Pormezz/stock.adobe.com

Dry Eye Society announces wet lab training event

by Staff Writer
June 13, 2025

The Dry Eye Society has announced a members-only wet lab event, which will  deliver advanced, hands-on clinical training in dry eye management....

Join our newsletter

View our privacy policy, collection notice and terms and conditions to understand how we use your personal information.

Insight has been the leading industry publication in Australia for more than 40 years. This longevity is largely due to our ability to consistently deliver accurate and independent news relevant to all ophthalmic professionals and their supporting industry.

Subscribe to our newsletter

View our privacy policy, collection notice and terms and conditions to understand how we use your personal information.

About Insight

  • About
  • Advertise
  • Subscribe
  • Contact
  • Terms & Conditions
  • Privacy Collection Notice
  • Privacy Policy

Popular Topics

  • Business
  • Feature
  • Research
  • Technology
  • Therapies
  • Classifieds

© 2025 All Rights Reserved. All content published on this site is the property of Prime Creative Media. Unauthorised reproduction is prohibited

No Results
View All Results
NEWSLETTER
SUBSCRIBE
  • Latest News
  • All Sections
    • Ophthalmic insights
      • Policy & regulation
      • Company updates & acquisitions
      • Research
      • Clinical trials
      • Workforce
      • Product approvals
      • Conferences
      • Opinion
      • Indigenous eye health
      • Retail
    • Eye disease
      • Dry eye
      • Myopia
      • Cataract
      • Glaucoma
      • Macular disease – AMD
      • Diabetic eye disease
      • Inherited retinal disease
      • Corneal disease
      • Presbyopia
      • Eye infections
    • Ophthalmic Careers
      • New appointments
      • Industry profiles
      • Graduates
    • Ophthalmic organisations
      • Regulators
      • Optometry networks
      • Private ophthalmology clinics
      • Associations
      • Patient support bodies
      • Eye research institutions
      • Optometry schools
      • Optical Dispensing trainers
      • Medical schools
      • RANZCO
  • Features
    • Report
    • Soapbox
  • Ophthalmic education
    • CPD – Optometry
    • Optical Dispensing
    • Orthoptics Australia
    • Practice management
  • Products
    • Ophthalmic Treatments
      • Ophthalmic lenses
      • Lens treatments
      • Myopia interventions
      • Light-based therapy
      • Minimally invasive glaucoma surgery (MIGS)
      • Gene therapy
      • Laser treatments
      • Supplements
      • Eyewear & frames
      • Behavioural optometry/vision training
      • Contact lenses
      • Anti-VEGF
      • Intraocular lenses (IOLs)
      • Pharmaceuticals & consumables
    • Ophthalmic equipment & diagnostics
      • Biometry – axial length
      • Perimetry & visual fields
      • OCT
      • Phoropter
      • Autorefractor
      • Tonometry
      • Topography
      • Multimodal imaging
      • Retinal imaging
      • Anterior segment imaging
      • Software & data management
      • Microscopes
      • Slit lamps
      • Lens edging
      • Stands, chairs and tables
      • Ultrasound
      • Dry eye diagnostics
      • Low vision aids
  • Research
  • Classifieds
  • About Us
  • Advertise with Insight
  • Subscribe
  • Contact Insight

© 2025 All Rights Reserved. All content published on this site is the property of Prime Creative Media. Unauthorised reproduction is prohibited