Related Experiment Video
Updated: Jun 17, 2025

Nasal Brushing Sampling and Processing Using Digital High Speed Ciliary Videomicroscopy – Adaptation for the COVID-19 Pandemic
Published on: November 7, 2020
Impact of 5 waves of COVID-19 on pediatric ophthalmology
Sangeetha Santhakumaran1, Abed Baiad2, Dorsai Ranjbari2
1Department of Ophthalmology, Queen's University, Kingston, ON, Canada.
Objective:
To characterize the impact of multiple waves of COVID-19 on pediatric ophthalmology at a tertiary care hospital.
Methods:
Medical records were reviewed from pediatric patients seen for ophthalmic emergencies at the Montreal Children's Hospital (Montreal, Canada) from 5 COVID-19 periods: March 13 to May 31, 2020; September 20, 2020, to February 21, 2021; March 21 to May 31, 2021; August 17 to November 5, 2021; and December 19, 2021, to January 25, 2022, as well as 2 pre-COVID time periods: March 13 to May 31, in 2018 and 2019).
Results:
There was a significant reduction in ophthalmic consultations when comparing pre-COVID to all 5 COVID waves (p < 0.0001). There was an increase in the average number of daily urgent (p = 0.01) ophthalmic consultations from waves 1 to 4. Mean household income of patients was not significantly different pre-COVID compared to during the 5 COVID waves (p = 0.96). The most common referral reason was ocular trauma (38.0% of cases). There was a non-significant trend demonstrating more infectious disease presentations during waves 3 to 5 (p = 0.07). There was no difference in symptom duration prior to presentation (p = 0.54); however, there was a difference in the time between emergency room and ophthalmology assessment in waves 3 and 4 compared with wave 5 (p = 0.003).
Conclusion:
The number of pediatric ophthalmology consultations was less during the 5 COVID waves than pre-COVID. An increase in urgent pediatric ophthalmology consultations occurred as COVID-19 infection rates in Quebec decreased. Access to health care and time to care were preserved across waves compared with pre-pandemic.
More Related Videos
06:29Comparing Objective Conjunctival Hyperemia Grading and the Ocular Surface Disease Index Score in Dry Eye Syndrome During COVID-19
Published on: May 25, 2022
07:27Anterior Segment Organ Culture Platform for Tracking Open Globe Injuries and Therapeutic Performance
Published on: August 25, 2021
Related Concept Videos
Angle Closure Glaucoma: Treatment
Glaucoma: Overview
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Accessory Structures of the Eye
Photoreceptors and Visual Pathways