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Social media offers a new way to provide education, reminders, and support for patients with a variety of health conditions. Most of these interventions use one-way, provider-patient communication. Incorporating social media tools to improve postoperative (postop) education and follow-up care has only been used in limited situations.
The aim of this study was to determine the feasibility and efficacy of two-way social media messaging to deliver reminders and educational information about postop care to cataract patients.
A total of 98 patients undergoing their first eye cataract surgery were divided into two groups: a no message group receiving usual pre- and postop care and a message group receiving usual care plus messages in a mobile social media format with standardized content and timing. Each patient in the message group received nine messages about hand and face hygiene, medication and postop visit adherence, and links to patient education videos about postop care. Patients could respond to messages as desired. Main outcome measures included medication adherence, postop visit adherence, clinical outcomes, and patients’ subjective assessments of two-way messaging. The number, types, content, and timing of responses by patients to messages were recorded.
Medication adherence was better in the message group at postop day 7, with high adherence in 47 patients (96%, 47/49) versus 36 patients (73%, 36/49) in the no message group (
Two-way social media messaging to deliver postop information to cataract patients is feasible and improves early medication compliance. Further design improvements can streamline work flow to optimize efficiency and patient satisfaction.
Social media platforms on mobile phones have changed the way the world communicates. Medicine as a profession is beginning to embrace these new communication modalities to improve health care delivery. This opportunity is valuable in both high income countries as a means for improving patient engagement and education and in low- and middle-income countries where the limitations of overburdened clinics and staff, transportation barriers, and health literacy issues are challenges to providing health care.
Many mobile health (mHealth) interventions have been studied, including apps to enhance patient education, promote behavior change, and improve medication and visit adherence. Others are directed to improving health care delivery systems through electronic decision support, data sensors, data collection, patient tracking, and electronic health records [
mHealth interventions to enhance patient adherence have been used in ophthalmology. Some specific examples include medication adherence in glaucoma [
The specific aim of this research project was to determine the feasibility and efficacy of two-way social media messaging in postop cataract surgery patients. We hypothesize that redesigning patient communication and education regarding cataract surgery postop care using a mobile messaging app is feasible and can positively impact the quality and patient experience of postop cataract surgical care.
Patients were recruited from the ophthalmology clinic at Srinagarind Hospital, the academic teaching hospital for the Faculty of Medicine at Khon Kaen University and the main tertiary referral center for northeast Thailand. Khon Kaen is the largest city in northeast Thailand with a growing urban population and economy. The surrounding provinces, from which most patients come, are rural, agricultural-based, and less developed. Smartphones are widely available in Khon Kaen and surrounding provinces, with mobile apps being a primary mode of communication. In Thailand, SMS text messaging (short message service, SMS) is relatively expensive and not commonly used; messaging apps such as LINE are the preferred mode of communication.
This is an interventional study with two groups. The control group received standard pre- and postcataract surgical care and education and included watching four educational videos on pre- and postop care in the clinic. The intervention group received standard pre- and postcataract surgical care and education, plus nine messages with standardized content and delivery schedule using the LINE messaging app (
Measurements of medication adherence, visit compliance, and clinical outcomes were obtained at the preop visit, postop day 7, and postop day 30 and compared between the two groups. The other study outcomes focused on the implementation and user experience of the LINE message group and included the number, type, content, and timing of the patient responses to messages. Clinical outcomes were measured, including visual acuity, intraocular pressure, and intraocular inflammation. Patients in the message group also completed a survey regarding subjective assessment of the message content and frequency (
The LINE social media messaging app was selected for this study because it is the most widely used mobile messaging app in the region, is free, has end-to-end encryption for one-to-one chats, automatic deletion from the server after set time, privacy settings to prevent sharing, allows for video links, and the LINE chat history could be downloaded for analysis after the study period.
Patients recommended to have cataract surgery at the outpatient ophthalmology department at Srinagarind Hospital, Khon Kaen University who met the eligibility criteria were recruited for the study. Recruitment of patients was done in a before and after fashion, recruiting 49 patients for the nonintervention group first, followed by 49 patients in the intervention. This form of patient recruitment was employed to minimize the patient groups from comingling and discussing study-related variables, clinical care, or messages. Patients were eligible for participation in the study if they (1) did not have previous cataract or other eye surgery, (2) had access (directly or through surrogate) to a smartphone and successfully demonstrated facility using the LINE app to send or receive messages and view videos, (3) agreed to follow security settings for LINE study communication, (4) agreed to maintain mobile phone or data service or Wi-Fi service, and (5) agreed to notify the study coordinator if their mobile phone number changed. Patients were excluded if they could not fulfill the above criteria, were younger than 18 years, or were from vulnerable populations including prisoners, those with mental illness, and pregnant women.
Patients in the intervention group could elect to have the messages sent to themselves or a designated surrogate who took responsibility to inform the patient of the messages. Surrogates were direct family members (usually son or daughter) living in the same house. The reasons for using a surrogate typically related to older patients’ lack of familiarity with smartphone usage or visual impairment from cataract preventing screen visualization.
The study variables collected in the nonmessage and message groups included smartphone user (patient or surrogate), medication adherence scores, visit adherence, and clinical outcomes. Additional information collected from the message group included the number of responses by each patient to each message, types of responses to messages, types of questions sent, timing of responses, and patient feedback survey scores.
Medication adherence was measured with an officially validated Thai translation of the 8-item Morisky Medication Adherence Scale (MMAS-8) [
Visit adherence was measured as the percent of patients attending their scheduled postop appointment. Patients who did not keep their scheduled appointment were considered noncompliant. These patients were contacted and asked to return for their follow-up exam and final data collection. Patients who could not be reached or did not return after being contacted were considered “no show.”
Clinical outcomes measured included best corrected (with refraction) visual acuity measured on a Snellen chart at 6 m, intraocular pressure measured with Goldmann tonometry, and intraocular inflammation graded by standardized uveitis nomenclature based on the number of cells per 1 mm2 high power field [
Responses were categorized into two types: (1) simple acknowledgments (eg, thank you) and questions. The type of media used for response was divided into three groups: sticker or emoji, photo, or text. Questions were subdivided into three types: administrative (eg, appointment or scheduling issue); postop care (eg, medication, dressing, and activity issues); and clinical symptoms requiring triage (eg, discomfort or a change in vision).
At the POD-30 visit, patients in the message group completed a 3-question feedback questionnaire evaluating their impressions regarding the frequency of messages, the content of messages, and recommendation for use of messages to other postop cataract patients.
The demographic characteristics of the patients were summarized as the mean and standard deviation (SD) for continuous variables and as frequency counts with percentages for categorical variables. MMAS-8 scores for low and medium adherence were combined to perform statistical analysis because of low frequency of responses in some categories. The percentage of MMAS-8 low or medium adherence scores was compared with high adherence scores using chi-square or Fishers exact test, depending on response frequency. The association of MMAS-8 score between message and no message groups were presented as odds ratio (OR) and 95% CI and was obtained using multiple logistic regression and generalize estimating equation (GEE). The adjusted OR were obtained in the same manner with the inclusion of gender, age, and LINE user type into the multivariate model. A
Approval was obtained from the Khon Kaen University Ethics Committee in Human Research. Informed consent was obtained from all study participants. The research adhered to the tenets of the Declaration of Helsinki. The research was compliant with the Health Insurance Portability and Accountability Act.
Demographic data and baseline characteristics of study population.
Study population characteristics | Message, n (%) | No message, n (%) | Overall, n (%) | ||
Number of patients | 49 (50) | 49 (50) | 98 (100) | ||
Female | 25 (51) | 20 (41) | 45 (46) | ||
Male | 24 (49) | 29 (59) | 53 (54) | ||
Less than 65 | 28 (57) | 20 (41) | 48 (49) | ||
65 and above | 21(43) | 29 (59) | 50 (51) | ||
Patient | 22 (45) | 12 (25) | 34 (35) | ||
Surrogate | 27 (55) | 37 (75) | 64 (65) |
Comparison of the 8-item Morisky Medication Adherence Scale (MMAS-8) score in message and no message groups by visit.
MMAS-8a score (N=98) | ||||||
Low, n (%) | Medium, n (%) | Low and medium, n (%) | High, n (%) | |||
Message | 18 (36) | 21 (42) | 39 (80) | 10 (20) | .8c | |
No message | 22 (44) | 18 (37) | 40 (82) | 9 (18) | ||
Message | 1 (2) | 1 (2) | 2 (4) | 47 (96) | .004e | |
No message | 0 (0) | 13 (26) | 13 (27) | 36 (73) | ||
Message | 0 (0) | 6 (12) | 6 (12) | 43 (88) | .74e | |
No message | 0 (0) | 4 (9) | 4 (9) | 41 (91) |
aMMAS-8: 8-item Morisky Medication Adherence Scale.
b
c
dPOD: postop day.
e
Comparison of the 8-item Morisky Medication Adherence Scale (MMAS-8) score by a LINE user.
MMAS-8a score (N=98) | ||||||
Low, n (%) | Medium, n (%) | Low and medium, n (%) | High, n (%) | |||
Patient | 17 (50) | 13 (38) | 30 (88) | 4 (12) | .19c | |
Surrogate | 23 (36) | 26 (41) | 49 (77) | 15 (23) | ||
Patient | 0 (0) | 4 (12) | 4 (12) | 30 (88) | .57c | |
Surrogate | 1 (2) | 10 (16) | 11 (17) | 53 (83) | ||
Patient | 0 (0) | 5 (15) | 5 (15) | 29 (85) | .34f | |
Surrogatee | 0 (0) | 5 (8) | 5 (8) | 55 (92) |
aMMAS-8: 8-item Morisky Medication Adherence Scale.
b
c
dPOD: postop day.
eFour patients in surrogate group did not keep POD-30 follow-up, so MMAS-8 score is not available.
f
Results of visit adherence scores in the message and no message groups at the preop, POD-7, and POD-30 appointments are summarized in
Each of the 49 patients in the message group received nine standardized messages, resulting in 441 total messages sent. Of the 49 patients, 41 (84%) responded to at least one message and 5 patients responded to every message. Each message elicited a response by approximately 50% of the recipients.
Out of 270 total responses, there were 188 (70%) simple acknowledgments such as “thank you” and 82 (30%) questions. Out of 82 question responses, 31 (38%) were about administrative issues (eg, appointments), 28 (34%) about postop care (eg, medications), and 23 (28%) about a clinical symptom (eg, foreign body sensation). All the questions’ responses about symptoms were triaged by nurses or ophthalmologists and only required patient reassurance or additional information about concerns (
Patients responded to messages using three different media types: stickers or emojis, photos, or typed messages. Out of 270 total responses, 25 (9%) included photographs, usually of a pleasant or happy nonclinical nature. There were 6 (2%, 6/270) patients who sent photos of medication bottles, bandages, or their eye to help explain their question. There were 102 (38%, 102/270) responses using “stickers,” which are colorful, cartoon-like replies similar to emoji’s but larger in size to communicate a variety of emotions and feelings such as thankfulness, appreciation, or happiness in the LINE app. A total of 143 responses (53%, 143/270) were a typed message.
Out of 49 patients who received messages, all of them completed the feedback survey; 46 (94%) judged the number of messages to be “just right,” and 3 (6%) wanted more messages. None wanted fewer messages. There were 48 (98%, 48/49) patients who found the message content helpful, with 16 (32%, 16/49) rating it “just right,” 20 (40%, 20/49) “helpful,” and 12 (24%, 12/49) “very helpful.” One of 49 patients (2%) thought the message content was slightly helpful.
There were 39 patients (79%, 39/49) who “recommended” and 7 patients (14%, 7/49) who “strongly recommended” the messages for future cataract surgery patients. There were 3 patients (6%, 3/49) who were “neutral” about recommending the messages to a cataract patient.
Visit adherence by message and no message groups at preop, POD-7, and POD-30 (Fishers exact test).
Visit adherence | Message, n (%) | No message, n (%) | ||
- | ||||
No | 0 (0) | 0 (0) | ||
Yes | 49 (100) | 49 (100) | ||
- | ||||
No | 0 (0) | 0 (0) | ||
Yes | 49 (100) | 49 (100) | ||
.03b | ||||
No | 0 (0) | 6c (12) | ||
Yes | 49 (100) | 43 (88) |
aPOD: postop day.
bFishers exact test.
cSix patients did not keep the scheduled POD-30 appointment; 2 patients later rescheduled.
Comparison of clinical outcomes between message and no message groups by preop, POD-7, and POD-30 visits.
Clinical | Message (n=49) Mean (SDa) | No message (n=49) |
Mean difference | 95% CI | ||
Preop | 0.90 (0.66) | 0.84 (0.55) | 0.06 | −0.18 to 0.30 | .63 | |
PODb-7 | 0.19 (0.25) | 0.36 (0.43) | 0.17 | 0.03-0.31 | .02 | |
POD-30 | 0.19 (0.25) | 0.36 (0.78) | 0.16 | −0.07 to 0.40 | .16 | |
Preop | 14.65 (3.77) | 14.27 (3.79) | 0.38 | −1.14 to 1.91 | .62 | |
POD-7 | 11.71 (2.61) | 12.31 (3.09) | 0.59 | −0.56 to 1.74 | .31 | |
POD-30 | 13.16 (3.42) | 12.22 (3.62) | 0.94 | −0.50 to 2.38 | .2 | |
Preop | 0 (0) | 0 (0) | 0 | 0 | ||
POD-7 | 0.33 (0.62) | 0.38 (0.53) | 0.05 | −0.19 to 0.28 | .68 | |
POD-30 | 0 (0) | 0 (0) | 0 | 0 |
aSD: standard deviation.
bPOD: postop day.
Our study showed that two-way social media messaging in postop cataract surgical patients was feasible and favorably received by patients. The medication and visit adherence of the postop patients were both generally high and left relatively little room for improvement in the intervention group, and both message and nonmessage groups showed improvement in medication adherence score from their baseline, suggesting that patients are more compliant because of the recent surgery. However, medication adherence measurements in the message group at POD-7 were significantly higher than the nonmessage group, suggesting that messages helped patients remember or understand the importance of taking their medications earlier in the postop process. This is potentially helpful in patients at risk of developing cystoid macular edema (CME). Visit adherence was higher, reaching 100% in the message groups at POD-30. The emphasis on visit adherence in the messages may have helped achieve this and is clinically important as complications such as CME can still develop at this time. Final clinical outcomes were not different between the message and nonmessage groups, but the visual acuity was higher at POD-7. As we did not detect a difference in inflammation levels between the message and no message groups, we suspect that this be because of an unknown confounder or chance.
Social media smartphone messaging apps allow for a variety of communication modalities, and our patients used many of them. Written text was used most frequently; stickers were nearly as popular. Stickers are a signature feature of the LINE messaging app and are widely used in Thailand. They are increasingly popular features on similar social media apps throughout the world. They offer an element of entertainment and sentiment to users. This is an important consideration as lack of patient engagement has been identified as a key barrier in patient adoption of mHealth technologies [
Our study has several important limitations. We could not confirm if the messages were received as intended though the rapid response suggested that the messages generally were received. Another weakness is that we did not measure phone calls or unscheduled visits to the clinic in the nonmessage group, which would provide valuable information in assessing the impact of our intervention and changes in workload for the clinic staff. Whereas the patient feedback was generally very positive, we did not design the study to determine the optimal frequency and timing of our messages. As our medication adherence measure was a self-reported survey, we acknowledge that it is subject to social desirability bias. This could result in a higher medication adherence score in patients who are concerned about disappointing their surgeon or other members of their care team. We looked for differences in the message and nonmessage groups for medication adherence and visual acuity with regard to age, gender, and LINE user type using a multivariate analysis (GEE) but found no significant differences regarding number, type, or content of messages. However, we were unable to perform this analysis for visit adherence because visit adherence was 100% in all the message groups.
Our study differs from most other medication and visit adherence studies for chronic disease management in that it looked at an mHealth intervention in cataract surgery postop care, which is a short-term, acute, episodic process. Our results support that reminders in this population can also be helpful in improving compliance. This aligns with findings in other ophthalmic reminder studies [
Two-way messaging has the potential to create voluminous, unwanted responses by patients resulting in increased workload for physicians and staff. Armstrong et al reported that patients using a postop home monitoring app for breast reconstruction surgery sent more emails to clinic staff in the first 30 days [
The research supporting the use of mobile phone apps throughout the perioperative period is increasing in the preoperative, perioperative, and postop periods [
To realize the benefits of using social media postop messaging at scale, we see a critical need to develop a robust program to automate messaging for patients at different stages of the postop process and the capacity to adapt these messages for changes in patient management. Other postop studies have incorporated alerts to help automate the monitoring process [
Another issue requiring further study is to determine the operational impact, including cost and time efficiency of two-way postop messaging. In clinics with a large volume of cataract surgery, this is important information that will ultimately determine uptake of this technology. Low resource settings may not have the option to devote staff to this system unless financial or operational benefits can be demonstrated.
Using two-way social media messaging for postop care is a promising innovation for not only cataract surgery but other surgical specialties. In addition to improving medication and visit adherence, our impression was that the patients liked the feeling of safety and connection to their care team provided by repeated messaging.
Description of pre- and postop cataract surgical care.
Educational video for patients undergoing cataract surgery: before surgery.
Educational video for patients undergoing cataract surgery: day of surgery.
Educational video for patients undergoing cataract surgery: after surgery.
Educational video for patients undergoing cataract surgery: information for family and caregivers.
Patient feedback questionnaire regarding LINE messages.
Association of visual acuity by message or no message groups adjusted for baseline score, gender, age, and LINE user type.
Message response types and media forms.
Message response types and media forms.
cystoid macular edema
generalized estimating equation
mobile health
8-item Morisky Medication Adherence Scale
odds ratio
postop day
standard deviation
The authors would like to acknowledge the valuable assistance received from Nattadaporn Promchan, Maleewan Anusuriya, and the Khon Kaen University’s eye care team in conducting this research.
They would also like to acknowledge that they have obtained written permission from copyright owners for any excerpts from copyrighted works that are included in the study and have credited the sources in the study or the supplemental materials. Use of the MMAS is protected by US copyright laws. Permission for use is required. A license agreement is available from Donald E. Morisky, ScD, ScM, MSPH, Professor, Department of Community Health Sciences, UCLA Fielding School of Public Health.
TS, KM, and MM developed the research study, collected and analyzed results, and coauthored the manuscript. IA organized the data collection, trained research staff, oversaw initial implementation, and reviewed the manuscript. KT and JT conducted the statistical analysis, produced tables, assisted with the interpretation of results, and reviewed the final manuscript.
None declared.