Introduction: The COVID-19 pandemic prompted ophthalmology conferences to transition to virtual platforms. The impact of these changes on attendance and research productivity remains underexplored. The objective of this study was to evaluate the effects of virtual platforms on attendance and research inclusion at ophthalmology conferences during the COVID-19 pandemic. Methods: This cross-sectional study analyzed data from 5 ophthalmology conference organizations conducted from 2019 to 2021. Conference meetings were categorized as in-person, virtual, or hybrid. Data included total attendance, trainee participation, and research submissions, obtained directly from each respective organization. Results: Conference meetings integrating a virtual component experienced a cumulative 7% increase in total attendance and a 28% rise in trainee participation. Research submissions rose by 31%, while research acceptances showed variability, with increases observed in some conferences during the virtual years. These trends highlight the potential for virtual platforms to enhance accessibility and engagement, particularly for trainees. Conclusion: Virtual platforms had an overall positive impact on ophthalmology conference attendance and research engagement during the COVID-19 pandemic. Continued integration of virtual components is recommended to enhance accessibility and inclusivity.

The COVID-19 pandemic uniquely disrupted all aspects of daily life, particularly within healthcare, necessitating novel adaptations such as virtual and telehealth platforms [1]. In this context, online platforms became increasingly important to maintain educational and professional continuity [2]. Ophthalmology conferences, integral to education and collaboration, were either canceled or transitioned to virtual formats during the pandemic. These conferences play a vital role in fostering collaboration, research dissemination, and professional development for trainees and practitioners alike [3]. Recent studies have also highlighted the use of teleophthalmology and ancillary diagnostic technologies such as optical coherence tomography during the pandemic to maintain care standards [4]. However, the impact of these transitions on conference attendance and educational value remains uncertain. This study aimed to characterize the changes in attendance and research productivity associated with the integration of virtual platforms into conference meetings before, during, and after the peak of the COVID-19 pandemic.

This cross-sectional study analyzed data from five US-based ophthalmology conference organizations, encompassing a total of 15 conference meetings held between 2019 and 2021. To maintain confidentiality, the conferences have been anonymized in this study and have each been assigned a letter (A–E). Conferences represented diverse subspecialties: glaucoma, cataract/anterior segment, oculofacial plastics, neuro-ophthalmology, and women’s ophthalmology.

Conferences were included if they provided data on attendance and research submissions for three consecutive years (2019–2021) and successfully transitioned to a virtual or hybrid format at some point during or after the peak of the COVID-19 pandemic. For this study, the peak of the COVID-19 pandemic is defined as the period of time around March of 2020, the period during which national lockdowns were implemented across the USA [5]. Conferences canceled during the study period or unable to provide complete data were excluded.

Data were obtained directly from conference organizers and included total attendance, trainee participation, and research submissions (submission and acceptance rates). The data were aggregated records provided by each organization. There was no independent assessor or randomization performed, and interrater reliability statistics were not applicable. To encompass broader forms of research dissemination, the term research submissions was used instead of abstracts. Institutional Review Board exemption was obtained for this study. The data used in this study were obtained directly from the individual conference organizations included in the analysis. Access to the data may be subject to restrictions by the respective organizations, and each respective conference organization must be contacted separately to obtain their data. Institutional Review Board exemption was obtained. For privacy purposes, the names of the conference organizations have been anonymized. These data are not publicly available online.

Fifteen conference meetings were analyzed: seven in-person, five virtual, and three hybrid events (Table 1). Overall, conferences integrating a virtual component experienced a 7% increase in total attendance. Trainee attendance rose by 28%. A graphical representation of total conference attendees throughout 2019 to 2021 is provided in Figure 1. Research submissions cumulatively increased by 31%, while research acceptances varied: an increase of 6.3% in 2020 followed by a decline in 2021.

Table 1.

Ophthalmology conference data from 2019–2021

ConferenceOutcomeYear
2019percent change2020percent change2021
A  In-person % In-person % Virtual 
Total attendees 1,192 1,205 15 1,383 
Total trainees 195 208 118 454 
Submitted abstracts 230 224 −22 174 
Accepted abstracts 169 176 −42 102 
B  In-person Percent change Virtual Percent change Hybrid 
Total attendees 3,821 −35 2,485 −13 2,143 
Total trainees 402 21 488 −22 381 
Submitted abstracts 1,686 1,770 −32 1,201 
Accepted abstracts 1,364 1,481 −23 1,144 
C  In-person Percent change Virtual Percent change Hybrid 
Total attendees 959 −14 829 −1 823 
Total trainees 150 −50 75 65 124 
Submitted abstracts 364 −21 287 290 
Accepted abstracts 217 −18 177 46 258 
D  In-person Percent change In-person Percent change Virtual 
Total attendees 663 −27 486 108 1,009 
Total trainees 161 −20 129 130 297 
Submitted abstracts 340 14 387 −32 265 
Accepted abstracts 290 14 332 −26 247 
E  In-person Percent change Virtual Percent change Hybrid 
Total attendees 497 51 751 13 846 
Total trainees 106 57 166 −16 140 
Submitted abstracts 158 23 195 39 272 
Accepted abstracts 144 156 60 250 
ConferenceOutcomeYear
2019percent change2020percent change2021
A  In-person % In-person % Virtual 
Total attendees 1,192 1,205 15 1,383 
Total trainees 195 208 118 454 
Submitted abstracts 230 224 −22 174 
Accepted abstracts 169 176 −42 102 
B  In-person Percent change Virtual Percent change Hybrid 
Total attendees 3,821 −35 2,485 −13 2,143 
Total trainees 402 21 488 −22 381 
Submitted abstracts 1,686 1,770 −32 1,201 
Accepted abstracts 1,364 1,481 −23 1,144 
C  In-person Percent change Virtual Percent change Hybrid 
Total attendees 959 −14 829 −1 823 
Total trainees 150 −50 75 65 124 
Submitted abstracts 364 −21 287 290 
Accepted abstracts 217 −18 177 46 258 
D  In-person Percent change In-person Percent change Virtual 
Total attendees 663 −27 486 108 1,009 
Total trainees 161 −20 129 130 297 
Submitted abstracts 340 14 387 −32 265 
Accepted abstracts 290 14 332 −26 247 
E  In-person Percent change Virtual Percent change Hybrid 
Total attendees 497 51 751 13 846 
Total trainees 106 57 166 −16 140 
Submitted abstracts 158 23 195 39 272 
Accepted abstracts 144 156 60 250 

Events listed in 2020 took place prior to government stay-at-home orders and lockdown restrictions around March 15, 2020.

Fig. 1.

Total conference attendance for conferences A-E from 2019 to 2021.

Fig. 1.

Total conference attendance for conferences A-E from 2019 to 2021.

Close modal

Specific trends among conferences were observed: Conference A experienced a 15% increase in total attendance and a 118% rise in trainee participation when transitioning to a fully virtual format in 2021, despite decreases in research submissions and acceptances. Conference B demonstrated a 35% decline in total attendance during its fully virtual year in 2020, yet showed a 21% increase in trainee participation. Conference C observed declines in attendance during its virtual year, followed by partial recovery with a hybrid format. Conference D recorded a dramatic 108% increase in total attendance and a 130% rise in trainee participation with a fully virtual format in 2021. Conference E demonstrated consistent growth, including a 60% increase in research acceptances and a notable rise in attendance when transitioning to a hybrid model in 2021.

This study highlights how virtual platforms influenced accessibility and participation at ophthalmology conferences during the COVID-19 pandemic. Total attendance increased by 7%, and trainee participation rose by 28%. Research submissions increased cumulatively by 31%. These findings suggest that virtual formats improved accessibility for trainees and may facilitate broader research dissemination. However, variability in research acceptance and attendance trends underscores that virtual models may not benefit all conferences equally. Our findings support the integration of virtual components into conference planning to promote accessibility, inclusivity, and continuous medical education, especially for trainees and international participants.

Limitations include limited parameters assessed, variability in baseline conference sizes, and lack of comparison to conferences in other medical fields. Future studies should explore specific barriers to attendance and the efficacy of hybrid versus in-person models. Future virtual conference models may benefit from similar principles: accessibility, quality, and inclusivity.

The inclusion of virtual components in ophthalmology conferences during the COVID-19 pandemic was associated with increased attendance and research submissions. While research acceptances showed variability, specific conferences demonstrated notable gains. Further research is needed to fully understand the factors driving these trends, especially the rise in trainee participation, and may include international conferences for study. Adopting hybrid models moving forward may maximize educational opportunities while preserving the unique benefits of in-person interactions, ultimately supporting ophthalmologists’ continuous education and professional development worldwide.

This study protocol was reviewed and approved by the Institutional Review Board at the City University School of Medicine, approval no Protocol #2021-0038. This study did not involve direct interaction with human participants, as the data analyzed were aggregated and anonymized conference attendance and research submission records provided by the respective conference organizations. Written informed consent was not required as determined by the Institutional Review Board at the City University School of Medicine, which granted an exemption for this study (Protocol #2021-0038). This research was conducted ethically in accordance with the principles outlined in the World Medical Association Declaration of Helsinki.

Aleksandra V. Rachitskaya, MD – consulting: Alcon, Genentech, Apellis, Iveric Bio, Zeiss; speaking: Apellis, Genentech, and Regeneron; research: AGTC, Apellis, Genentech, and NGM Bio. The other authors report there are no competing interests to declare.

This research was conducted without the support of any external funding. No sponsors were involved in the study design, execution, data analysis, manuscript conception, planning, writing, or the decision to publish the findings.

All authors listed meet all conditions to qualify for authorship as listed by the ICMJE. Gabriella Schmuter, MD, and Andrea A. Tooley, MD: conceptualization, data curation, formal analysis, investigation, methodology, validation, and writing. Natasha Nayak Kolomeyer, MD: data curation, formal analysis, investigation, methodology, validation, and writing. Lisa M. Nijm, MD, JD; Jeremiah Tao, MD; Prem S. Subramanian, MD, PhD; Zaina Al-Mohtaseb, MD; Terry Kim, MD; Aleksandra V. Rachitskaya, MD; and Janice C. Law, MD: data curation, investigation, validation, and writing – review and editing.

Additional Information

Previous presentations: An earlier version of this study was presented as a poster at the Association for Research in Vision and Ophthalmology Annual Meeting in May 2022 in Denver, CO. This project was presented at the Women in Ophthalmology Summer Symposium in August 2023 in Marco Island, FL.

The data used in this study were obtained directly from the individual conference organizations included in the analysis. Access to the data may be subject to restrictions by the respective organizations, and each respective conference organization must be contacted separately to obtain their data. For privacy purposes, the names of the conference organizations have been anonymized. These data are not publicly available online to maintain confidentiality and privacy of each organization. However, the data may be available upon reasonable request. Requests can be directed to the corresponding author at [email protected].

1.
Gurnani
B
,
Kaur
K
.
Impact of the COVID-19 pandemic on clinical ophthalmology
.
Indian J Med Res
.
2021
;
153
(
1 & 2
):
199
200
.
2.
Chong
JC
,
Tan
CHN
,
Chen
DZ
.
Teleophthalmology and its evolving role in a COVID-19 pandemic: a scoping review
.
Ann Acad Med Singap
.
2021
;
50
(
1
):
61
76
.
3.
Gupta
MP
,
Sridhar
J
,
Wykoff
CC
,
Yonekawa
Y
.
Ophthalmology conferences in the coronavirus disease 2019 era
.
Curr Opin Ophthalmol
.
2020
;
31
(
5
):
396
402
.
4.
Garg
I
,
Katz
R
,
Lu
Y
,
Miller
JB
.
Remote imaging capture with widefield swept-source OCT angiography during the COVID-19 pandemic
.
Clin Ophthalmol
.
2022
;
16
:
477
86
.
5.
Centers for Disease Control and Prevention
.
CDC museum COVID-19 timeline
. Published March 2022: https://www.cdc.gov/museum/timeline/covid19.html (accessed April 27, 2025).