Literacy levels of ophthalmic patient education materials

Health literacy and ophthalmology: A scoping review

As of 2020, it is estimated that 43.3 million people are blind, and an additional 553 million have mild to severe vision impairment.50 At least 1 billion worldwide have a vision impairment that could have been prevented or has yet to be addressed.54 Poor health literacy may be a significant contributor to the prevalence of eye disease. With implications on disease burden, progression, and health outcomes, a greater understanding of the role health literacy plays in ophthalmology is needed. This is the first scoping review to assess the impact of health literacy on eye health outcomes and blindness, including ocular screening rates and/or follow-up rates, treatment adherence, and self-care practices. PubMed, Embase, and CINAHL databases were searched systematically through November 12, 2021, and we evaluated the association between health literacy and ophthalmic outcomes in 4 domains: clinical outcomes, treatment adherence rates, screening and/or follow-up rates, and self-care practices. There is evidence to suggest that health literacy is associated with ophthalmic outcomes in all these domains. To better understand how health literacy impacts eye health, further longitudinal studies examining the effect of health literacy (using standardized health literacy measures) on ophthalmic outcomes are needed. We believe a specific ophthalmic health literacy survey could help achieve this goal and help target interventions to ultimately improve outcomes among ophthalmology patients.

Assessment of the readability and quality of online patient education materials for the medical treatment of open-angle glaucoma

Objective

Patient adherence to glaucoma medications is poor, and is linked to low literacy levels. Patients commonly use the internet to access health information, and it is recommended that patient information is written at an 11-year-old reading level. The aim of this study is to assess the readability and quality of online patient education materials for the medical management of open angle glaucoma.

Methods and analysis

The top 10 relevant Google searches for nine glaucoma medications (timolol, brimonidine, apraclonidine, dorzolamide, latanoprost, bimatoprost, travoprost, tafluprost and brinzolamide) and three generic searches were analysed for readability and accountability. Readability was assessed using Flesch Reading Ease Score (FRES), Flesch-Kincaid Grade Level (FKGL), Gunning Fog Index (GFI) and Simple Measure of Gobbledygook Index (SMOG). Webpages were classified by source and assessed using Journal of the American Medical Association (JAMA) benchmarks of accountability.

Results

111 articles were included in the analysis. Mean readability scores were: FRES 55.5 (95% CI 53.4 to 57.5); FKGL 9.7 (95% CI 9.3 to 10.0); GFI 12 (95% CI 11.6 to 12.4) and SMOG 9.3 (95% CI 8.9 to 9.6). One-way analysis of variance demonstrated no significant difference in readability score between source type. 9% of the webpages satisfied all 4 JAMA benchmarks. Pearson’s correlation coefficient showed a correlation between the FRES and accountability score (r=0.19, p=0.045).

Conclusion

The majority of online patient education materials for the medical treatment of glaucoma are written at a level too difficult for the general population and fail to meet accountability standards.

Assessing the readability and patient comprehension of rheumatology medicine information sheets: a cross-sectional Health Literacy Study

OBJECTIVES

Patients are often provided with medicine information sheets (MIS). However, up to 60% of patients have low health literacy. The recommended readability level for health-related information is ≤grade 8. We sought to assess the readability of MIS given to patients by rheumatologists in Australia, the UK and Canada and to examine Australian patient comprehension of these documents.

DESIGN

Cross-sectional study.

SETTING

Community-based regional rheumatology practice.

PARTICIPANTS

Random sample of patients attending the rheumatology practice.

OUTCOME MEASURES

Readability of MIS was assessed using readability formulae (Flesch Reading Ease formula, Simple Measure of Gobbledygook scale, FORCAST (named after the authors FORd, CAylor, STicht) and the Gunning Fog scale). Literal comprehension was assessed by asking patients to read various Australian MIS and immediately answer five simple multiple choice questions about the MIS.

RESULTS

The mean (±SD) grade level for the MIS from Australia, the UK and Canada was 11.6±0.1, 11.8±0.1 and 9.7±0.1 respectively. The Flesch Reading Ease score for the Australian (50.8±0.6) and UK (48.5±1.5) MIS classified the documents as 'fairly difficult' to 'difficult'. The Canadian MIS (66.1±1.0) were classified as 'standard'. The five questions assessing comprehension were correctly answered by 9/21 patients for the adalimumab MIS, 7/11 for the methotrexate MIS, 6/28 for the non-steroidal anti-inflammatory MIS, 10/11 for the prednisone MIS and 13/24 for the abatacept MIS.

CONCLUSIONS

The readability of MIS used by rheumatologists in Australia, the UK and Canada exceeds grade 8 level. This may explain why patient literal comprehension of these documents may be poor. Simpler, shorter MIS with pictures and infographics may improve patient comprehension. This may lead to improved medication adherence and better health outcomes.

Readability of patient education materials in ophthalmology: a single-institution study and systematic review

Background

Patient education materials should be written at a level that is understandable for patients with low health literacy. The aims of this study are (1) to review the literature on readability of ophthalmic patient education materials and (2) to evaluate and revise our institution’s patient education materials about glaucoma using evidence-based guidelines on writing for patients with low health literacy.

Methods

A systematic search was conducted on the PubMed/MEDLINE database for studies that have evaluated readability level of ophthalmic patient education materials, and the reported readability scores were assessed. Additionally, we collected evidence-based guidelines for writing easy-to-read patient education materials, and these recommendations were applied to revise 12 patient education handouts on various glaucoma topics at our institution. Readability measures, including Flesch-Kincaid Grade Level (FKGL), and word count were calculated for the original and revised documents. The original and revised versions of the handouts were then scored in random order by two glaucoma specialists using the Suitability Assessment of Materials (SAM) instrument, a grading scale used to evaluate suitability of health information materials for patients. Paired t test was used to analyze changes in readability measures, word count, and SAM score between original and revised handouts. Finally, five glaucoma patients were interviewed to discuss the revised materials, and patient feedback was analyzed qualitatively.

Results

Our literature search included 13 studies that evaluated a total of 950 educational materials. Among the mean FKGL readability scores reported in these studies, the median was 11 (representing an eleventh-grade reading level). At our institution, handouts’ readability averaged a tenth-grade reading level (FKGL = 10.0 ± 1.6), but revising the handouts improved their readability to a sixth-grade reading level (FKGL = 6.4 ± 1.2) (p < 0.001). Additionally, the mean SAM score of our institution’s handouts improved from 60 ± 7 % (adequate) for the original versions to 88 ± 4 % (superior) for the revised handouts (p < 0.001).

Conclusions

Our systematic review of the literature reveals that ophthalmic patient education materials are consistently written at a level that is too high for many patients to understand. Our institution’s experience suggests that applying guidelines on writing easy-to-understand material can improve the readability and suitability of educational materials for patients with low health literacy.

Reprint of: Health literacy in Canada and the ophthalmology patient

Health literacy represents the cognitive and social skills that determine the motivation and ability of individuals to gain access to, understand, and use information in ways that promote and maintain good health.(1) According to the 2003 International Adult Literacy and Life Skills Survey (IALSS), over 12 million (60%) adult Canadians lack the capacity to obtain, understand, and act on health information and services, as well as make appropriate health decisions on their own.(2,3) Of these 12 million Canadians, the elderly are the most health illiterate age group in Canada. What this suggests for Canadian physicians is that to improve the CanMEDS roles of communicator and health advocate,(4) physicians need to recognize health literacy as a modifiable contributor of poor health outcomes and work to remove literacy-related barriers.(5) This is particularly important for ophthalmologists who manage chronic illnesses in elderly patients.(2,6,7) The objective of this review is 2-fold. The first objective is to describe health literacy in Canada and provide a summary on the current state of health literacy research, both generally in medicine and specifically to Ophthalmology. The second objective is to propose a 3-step approach of evidence based techniques for managing low health literate patients in clinic.

High-risk populations for vision loss and eye care underutilization: a review of the literature and ideas on moving forward

Much work has been done to highlight and understand the significant disparities in the use of eye care services, but they continue to exist. We review the existing literature on utilization in high-risk populations to provide a context for understanding what "high-risk" means, to understand the utilization patterns among high-risk populations, and to highlight barriers to appropriate eye care utilization. We also discuss potential approaches to reduce these disparities.

Health literacy and glaucoma

PURPOSE OF REVIEW

This review discusses the concept and measurement of health literacy, with a focus on the care of patients with glaucoma.

RECENT FINDINGS

Nearly one-fourth of adults in the USA lack the skills needed to fully comprehend and act on verbal or written information in the healthcare environment. This problem, referred to as poor health literacy, is associated with worse health-related outcomes in many chronic diseases, including glaucoma. Patients with glaucoma and poor literacy skills are less likely to refill their prescribed medications and miss more scheduled appointments than their more literate peers. Moreover, ophthalmic educational materials are often written at a level of readability that surpasses the skills of many patients with glaucoma.

SUMMARY

Patients with chronic eye diseases such as glaucoma and limited health literacy skills are vulnerable to poor visual outcomes. Attention to health literacy may improve the care and outcomes of these patients.

The influence of health literacy level on an educational intervention to improve glaucoma medication adherence

OBJECTIVE

To test an educational intervention targeted to health literacy level with the goal of improving glaucoma medication adherence.

METHODS

One hundred and twenty-seven veterans with glaucoma were randomized to glaucoma education or standard care. The intervention included a video scripted at a 4th, 7th, or 10th grade level, depending on the subject's literacy level. After six months, the number of days without glaucoma medicine (DWM) according to pharmacy records for the intervention and control groups was compared.

RESULTS

The number of DWM in the six months following enrollment was similar for control and intervention groups (intervention, n=67, DWM=63 ± 198; standard care, n=60, DWM=65 ± 198; p=0.708). For each subgroup of literacy (adequate, marginal, inadequate), subjects in the intervention group experienced less mean DWM than subjects in the control group and the effect size (ES) increased as literacy decreased: adequate literacy, ES 0.069; marginal, ES 0.183, inadequate, ES 0.363. Decreasing health literacy skills were associated with decreasing self-reported satisfaction with care (slope=0.017, SE=0.005, p=0.002).

CONCLUSIONS

Patients with decreased health literacy skills may benefit from educational efforts tailored to address their health literacy level and learning style.

PRACTICE IMPLICATIONS

Providers should consider health literacy skills when engaging in glaucoma education.

Development and pilot of a low-literacy diabetes education book using social marketing techniques

INTRODUCTION

The primary objective of this work was to develop a diabetes education book, to pilot its use, and to evaluate its impact on patient care. The secondary objective was to compare the value of providing only the book to patients versus providing the book along with a brief tutorial given by a nurse on how to use the book.

METHODS

A diabetes education book was developed through a social marketing approach. The impact of the book was then tested in a pilot, prospective, randomized controlled trial evaluating diabetes knowledge, emotional distress, self-care behavior, and clinical outcomes in a primary care patient population. The three-arm study randomized one group to usual care (n=33), one group to receive the book alone (n=33), and one group to receive the book with a brief nurse tutorial (n=34). Patients completed surveys at baseline, 4 weeks, 3 months, and 6 months to assess knowledge (Knowledge Questionnaire), self-care behaviors (Summary of Diabetes Self Care Activities [SDSCA] survey), and disease-related distress (Problem Areas in Diabetes [PAID] scale).

RESULTS

A patient advocacy committee identified a need for information on basic diabetes knowledge, diet, medications, complications, preparing for a visit, and plans for daily life. Using social marketing with a focus on low literacy, the Penn State Hershey Diabetes Playbook was created. The pilot study showed a trend towards improved knowledge, decreased distress, and improved self-care behaviors in patients who received the book. There was no difference in outcomes in patients who were provided the book alone versus those who received a brief nurse tutorial along with the book.

CONCLUSION

Social marketing techniques and low literacy awareness are useful in developing diabetes educational materials.

Health literacy and ophthalmic patient education

In 1997, Ebrahimzadeh, Davalos, and Lee wrote in this journal that only 32% of the ophthalmic patient educational materials reviewed were written at or below the recommended eighth-grade reading level. Since that time, the National Assessment of Adult Literacy found that more than one-third of adult Americans possess only basic or below basic health literacy skills, defined as the ability to understand written information in a healthcare setting. Subsequently, investigators have shown that poor health literacy skills are associated with poor prescription medication adherence, increased hospital admissions, and increased mortality. We review the readability of currently available ophthalmic educational materials, with particular attention to the health literacy status of the patient population for which the materials are intended. Examples of prose at various readability levels are provided. Optimizing patient education and improving clinical outcomes requires understanding the attributes that the patient brings to the patient-physician relationship, including health literacy.

Patient literacy levels within an inner-city optometry clinic

BACKGROUND

This study compares the literacy levels of patients seeking primary optometric care at the Illinois Eye Institute, located in a Chicago inner-city neighborhood, to the literacy demands of available near point cards and patient educational materials.

METHODS

The revised large print Slosson Oral Reading Test was administered to 100 primary care patients 10 to 15 minutes after the instillation of mydriatic eye drops. In addition, the Flesch-Kincaid Grade Level was calculated using the Spelling and Grammar component of the Microsoft Word software package 2003 (Microsoft, Redmond, Washington) for available near point testing cards and patient education materials used in this clinic from the American Optometric Association and the National Eye Institute.

RESULTS

A total of 37.4% of patients read 1 standard deviation or more below their age-expected levels. A total of 46.5% of patients read at or below an eighth-grade level. The literacy demands of the tested near point cards ranged from 2nd grade to 12th grade. The literacy demands of patient education materials ranged from 7th grade to 12th grade.

CONCLUSIONS

About one third to almost one half of the 100 patients in this sample from the Illinois Eye Institute optometry clinic read below their age-expected level. Therefore, near point testing materials and patient education materials may not be written at a suitable reading level to be effective in this population. Clinicians who provide eye care for patients in inner city settings should consider communicating important information using nonwritten methods to those patients with low literacy levels.

Health literacy and adherence to glaucoma therapy

PURPOSE

To describe the health literacy of subjects with open angle glaucoma and to investigate the hypothesis that low health literacy is associated with poor glaucoma medication adherence.

DESIGN

Cross-sectional patient survey and concomitant chart review.

METHODS

One hundred and ninety-seven subjects with open angle glaucoma participated in a survey which included basic demographic information such as age, gender, ethnicity, and level of education completed, and a test of heath literacy, the Rapid Assessment of Adult Literacy in Medicine. Information was collected regarding visual field tests and prescribed medication. The subjects' pharmacies were contacted to ascertain the number of refills requested over the previous six months.

RESULTS

Although 146 subjects (74%) reported completing high school, only 94 subjects (48.0%) read at or above a ninth grade level; 23 (11.7%) read at a level of third grade or below. The mean number of refills requested by a subject in the preceding six months was not predicted by race (P = .27,) gender (P = .31), age (P = .92), mean deviation of the visual field (P = .36), or level of education (P = .58). There was a positive relationship between health literacy and the number of refills obtained (P = .003).

CONCLUSIONS

Many patients with open angle glaucoma may have poor health literacy. The subjects in our study with low literacy were less adherent with their glaucoma medications than those with a higher level of literacy. Interventions specifically targeting patients with low literacy may improve medication adherence.

Readability of patient handout materials in a nationwide sample of alcohol and drug abuse treatment programs

The objective of this study was to assess the readability of a nationwide sample of alcohol and drug abuse treatment programs' materials. Of 646 programs that were randomly selected from the National Clearinghouse for Alcohol and Drug Information directory, 52 programs returned completed materials. The average readability grade level of materials was 11.84 (SD = 0.94). The program staff estimations were significantly lower than actual reading levels of materials, and no program characteristics correlated with readability levels. Thus, it was concluded that materials written at high readability levels may not be effective tools for all patients. Integrating knowledge regarding program materials' readability level and literacy levels of different populations could be successful aides to substance abuse treatment.

Medication adherence and persistence: a comprehensive review

Estimates of adherence to long-term medication regimens range from 17% to 80%, and nonadherence (or nonpersistence) can lead to increased morbidity, mortality, and healthcare costs. Multifaceted interventions that target specific barriers to adherence are most effective, because they address the problems and reinforce positive behaviors. Providers must assess their patients' understanding of the illness and its treatment, communicate the benefits of the treatment, assess their patients' readiness to carry out the treatment plan, and discuss any barriers or obstacles to adherence that patients may have. A positive, supporting, and trusting relationship between patient and provider improves adherence. Individual patient factors also affect adherence. For example, conditions that impair cognition have a negative impact on adherence. Other factors--such as the lack of a support network, limited English proficiency, inability to obtain and pay for medications, or severe adverse effects or the fear of such effects--are all barriers to adherence. There are multiple reasons for nonadherence or nonpersistence; the solution needs to be tailored to the individual patient's needs. To have an impact on adherence, healthcare providers must understand the barriers to adherence and the methods or tools needed to overcome them. This report describes the barriers to medication adherence and persistence and interventions that have been used to address them; it also identifies interventions and compliance aids that practitioners and organizations can implement.

Readability of ocular medication inserts

OBJECTIVE

To determine the readability of ocular medication inserts and whether they are an appropriate source of medication information for patients.

MATERIALS AND METHODS

The Flesch-Kincaid and SMOG readability formulas were used to calculate the readability of 10 common glaucoma medication inserts (Alphagan, Azopt, Betoptic, Betimolol, Cosopt, Optipranolol, Rescula, Trusopt, Timoptic, and Xalatan) and 6 widely used nonglaucoma medication inserts (Alrex, Lotemax, Ocuflox, Patanol, Pred Forte, and Zaditor).

RESULTS

The 10 glaucoma medication inserts surveyed required an average overall grade level of 12.9 +/- 0.6 by the Flesch-Kincaid Index and of 13.5 +/- 0.6 by the SMOG formula. The 6 nonglaucoma medication inserts had an overall grade level of 11.1 +/- 0.6 by the Flesch-Kincaid Index and of 11.7 +/- 0.9 by the SMOG formula. All medications reviewed were above the eighth-grade level recommended by the Flesch-Kincaid Index for public materials.

CONCLUSIONS

Ocular medication inserts are too complex to be an adequate source of medication information for the average American adult. This study highlights the need for improving communication and education regarding patients' medications.

Information within optometric practice: comprehension, preferences and implications

The partnership approach to health care, in which patients take an active role in decision making, can potentially improve patient satisfaction and adherence to clinician recommendations. However, the process can be impeded by insufficient or poor-quality information provision. This study explored participants' understanding of, and requirements for, optometric information. Information leaflets were obtained from 12 optometry practices and four internet-based resources. Sixty-four patients/ clients participated in focus groups that explored: (1) their understanding of diagrams of visual function, (2) perceptions of good information, (3) information requirements and (4) perceptions of the effects of improved information. A theory-led thematic analysis identified three major themes within each of the four categories. The use of jargon and the inappropriate layout of diagrams and text impeded comprehension of the leaflets. High-quality information was defined as being written concisely with simple explanations and clear diagrams. There was also a preference for information to be relevant and applicable to the patient's own eye care needs. In addition, participants expressed a desire for both written and verbal information regarding eye examination procedures and interpretation of prescriptions. Advice regarding eye care was also requested. To facilitate a partnership approach and improve patient satisfaction, patients should be provided with jargon-free concisely written and clearly presented information. In addition to general information, patients would also benefit from personalised information regarding test results and eyecare regimes.