Improving Undergraduate Ophthalmology Education in the Time of COVID-19 Pandemic by Video-Assisted Online Learning

Introduction: The COVID-19 pandemic had forced many institutions to diminished face-to-face teaching classes. We conduct an online teaching method through an e-learning platform during the pandemic to ensure that the students attain the basic competencies. This study aimed to give an insight into the efficacy of online learning in undergraduate ophthalmology education. Methods: This was an interventional study in a university teaching hospital, and 64 medical students participated in this study. The students were instructed to watch the clinical skill video and make a case report through the e-learning platform. The students completed the multiple-choice test and the student perception questionnaire during the online period. The students then continue to undergo two weeks of in-person clinical clerkship, and at the end of the rotation, the students had an objective structured clinical examination test using simulated patients. Results: The mean score of multiple choice and clinical examination test was 72,50+12,54 and 89,80+6,66, respectively. There also improvement in knowledge and skill about visual acuity and subject refractive examination at the end of the clinical clerkship period. About 85.93% of students were satisfied with online learning quality, but 95.31% of students stated that clinical skills were easier to understand if demonstrated directly by the instructor. Conclusions: This study results can encourage that video-assisted online learning models can be useful as an adjunct for improving undergraduate students’ basic ophthalmology skills before they entered clinical clerkship. Quality assurance of the video resource should be done to ensure that students can achieve basic ophthalmology competencies.


Introduction
The COVID-19 pandemic had given an immediate challenge to traditional undergraduate medical education methods, and in-person clinical clerkships, including ophthalmology rotation for medical students, had been suspended to prevent the threat of disease transmission. This rotation cancellation could lead to a lack of patient's exposure and, eventually, inadequate basic ophthalmology knowledge and clinical skills. The lack of ophthalmology case exposures in medical students will contribute to the misdiagnosis and mismanagement of ocular diseases and inappropriate referral to ophthalmologist [1,2]. This condition forced the need to develop virtual clinical learning. The online learning method is not a substitute for traditional face-to-face learning method and is not without its shortcoming, but it can help to ensure that the medical students would not lose their precious time and could continue with their academics in these uncertain times [3,4]. Our university had developed an online learning platform named iLearn before the outbreak of COVID-19, but its use was still limited. The COVID-19 pandemic then allows us to explore a new approach for teaching-learning techniques using this online learning platform. Adequate evidence-based research must be provided to encourage the faculty to implement this alternative learning method during this pandemic period [5,6]. Therefore, we conducted this study to evaluate the online learning method's effectiveness during the COVID-19 pandemic for undergraduate medical students in ophthalmology clinical clerkships. This study will give an insight into the efficacy of online learning in undergraduate ophthalmology education.

Methods
This study was conducted from June to November 2020 at the Department of Ophthalmology of Faculty of Medicine Andalas University, Indonesia. This study design was an interventional study. The online learning platform we used to conduct the online learning was the iLearn. This study enrolled 64 medical students who enter virtual clerkship in ophthalmology rotation during the COVID-19 pandemic for about four weeks. The students had never been undergone face-to-face clinical clerkship in the Department of Ophthalmology previously. Another inclusion criteria were clinical clerkship students who still registered as medical students and clinical clerkship students who had iLearn platform personal account. Exclusion criteria were clinical clerkship students who did not complete the multiple-choice test and the student perception questionnaire.
The students were instructed to enter the iLearn platform and

Results
The demographic data of the medical students are following.

Discussion
The decline in undergraduate ophthalmology education level for medical students, which was further severed by the COVID-19 pandemic, could lead to a lack of essential basic skills in ophthalmology examination among medical students. The applied physical distancing and lockdown strategy had interfered with the learning-teaching process in most countries in the world. The medical students have been targeted to achieved some competencies in ophthalmology, but the current situation made it difficult because there were diminished opportunities and times to encounter real patients in the hospital. Modification of the ophthalmology teaching method must take place to accommodate this task within a shorter period. The advancement of information technology had brought online learning as one of the best alternative teaching methods during this pandemic era to get sufficient competencies in ophthalmic skills and knowledge [7][8][9].
Before the pandemic period, undergraduate ophthalmology rotation took four weeks in our department. The learningteaching process involves face-to-face case discussion and direct observation of patient examination in the outpatient clinic. During the COVID-19 pandemic, the education process had shifted into half of online learning and half of in-person clerkship. This change is to reduce the number of students in our department where the student's group was split into halves so the physical distancing is still can be applied. This study result gives a promising result about the implementation of online learning in undergraduate ophthalmology education. Overall, both MCQ and OSCE tests show good mean scores of the students. A concern must be given to basic ophthalmology skill which is more complicated for medical students to master such as subjective refractive examination. In the online learning period, the students still difficult to comprehend Feedback holds an important role in improving the student's clinical skill as it guides them to do the procedure according to the standards. Therefore, face-to-face learning methods are still a more effective means of teaching for this particular ophthalmic skill [7,11].
Overall, the student's perception was good about online learning, where more than 85% of students were satisfied with the quality of online learning. About 85,94% of students also can comprehend the learning material in the video and achieved the learning objectives which were expected. More than 90% of the students agreed that the topic presented in online learning was an essential topic to learned and very useful in clinical practice as a primary care physician. However, many of the students (93,75%) stated that face-to-face learning methods were more effective than Provision of learning materials included clinical skill videos before undergraduate ophthalmology clinical clerkship had shown to significantly improved subjective and objective measures of knowledge and skill performance. This effect is likely due to the specified topics and the higher efficacy of selected materials provided by the instructor relative to student-selected materials so the students can focus and concentrate on achieving the learning objectives and clinical skills expected [15]. Computerassisted learning modules using virtual patients have been applied to enhance teaching and learning by allowing medical students to sharpen their clinical reasoning skills by formulating a diagnosis and treatment plan on virtual patients with simulated eye conditions in a safe learning environment before practicing on real patients. The application of virtual patients resulted in increased academic performance and sustained retention over traditional teaching alone [16]. However, such particular skills, such as refractive error correction and direct ophthalmoscopy, still need real patients to practice in order to understand the correct angle of approach and the necessary adjustments to be made during the examination. A hybrid learning model of virtual didactics, simulation, telemedicine, self-directed learning, and in-person clinical encounters will provide students with various experiences, including new opportunities in patient care and technical skill development [1,17]. This study shows that despite the excellent score of the overall multiple-choice test, the students learning is combined with traditional face-to-face learning. In the online learning period, the students enrolled in the iLearn platform and were assigned to watch the clinical skill videos, complete the multiple-choice test, and make a case report. In the clinical clerkship period, the students came to the teaching hospital wearing personal protective equipment, which is mandatory. The students can observe the real patient examination directly in the outpatient clinic. Afterward, the instructor gives an explanation and discussion about the patient examined before. The students were also performed basic ophthalmology examinations under the supervision of the instructor. As an adjunct to conventional learning method, however, online learning may be beneficial and may have a significant impact on future medical students, including new opportunities in patient care and technical skill development [1,[18][19][20][21].
This study's limitations include the relatively small sample size and the self-reported nature of the questionnaire in which participants may be subject to reporting bias affected by student confidence and the degree to which they did not want to disappoint teaching staff. This study also does not compare the blended learning method's outcome with the conventional full-time clinical clerkship. However, with reasonable satisfaction from most students in this study, we hope that online learning can supplement the in-person clinical clerkship method, especially in this pandemic period, to ensure that the students would not lose precious time and could continue with their academics.

Conclusion
This study results can encourage that a blended learning model, which combines video-assisted online learning with the inperson clinical clerkship, can be useful for acquiring clinical skills by health students. Learning process flexibility to time and place was the most advantage of online learning and lacking to perform clinical skills was the main shortcoming. Quality assurance of the video resource should be done to enable students to understand the context and engage with video resources so in time they encounter real patients, they are already prepared and gain sufficient competencies. The advanced development of information and communication technology will further be improved and established online learning as a more time-and resource-effective model for the interactive and integrated learning process.