We congratulate Wu et al. on their study, as monitoring of records is important for clinical and medicolegal reasons, especially during the challenging transition towards paperless working in NHS hospitals [1,2,3]. However, we have concerns with their study methodology and conclusions.

New glaucoma referrals were reviewed at three sites with two different EPR systems at different stages of rollout and clinical engagement. They compared these to ‘pooled’ paper records from only two sites with no mention of possible use of structured paper proformas or paramedical staff collating data. Conclusions are based on data sampled possibly randomly over 5 years (2010–2015), including a changeover phase in 2014, which itself could have contributed to poorer outcomes. Separating the values for the EPR systems also provides some clues on poor quality (Table 1). Both systems may have been used simultaneously at Moorfields during transition when it was left to clinician preference as it is difficult to explain how 1 in 10 new referrals did not have eye pressures recorded. Gonioscopy recording in EPR is significantly different to paper records and, as expected, had low entries but, interestingly, did not differ between both systems.

Table 1 Data review: separating the percentage entry for two EPR systems and paper across relevant fields (Wu et al.) [1]
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We also tracked data quality over 1 year in our eye casualty after EPR (Medisoft) introduction, and noted consistent issues with use of free text entries due to lack of familiarity, inadequate data fields and few specified forced choice defaults. Moreover, as staff changed during this period there was a gradual deterioration in record quality (Table 2). We recommend regular electronic record audits with continued targeted training following mandatory induction. Feedback via user groups can facilitate software changes in future EPR versions allowing better integration with workflow.

Table 2 Summary of our data in eye casualty record quality audit (UHCW)
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Although Wu et al. rightly raise awareness on this issue, it is important to not make biased and unsupported conclusions on electronic working, e.g., electronic data is more accessible, but data breaches may not be more common, but just more easily tracked. EPR has the power to truly transform healthcare, but we need to focus on the roll out to ensure better integration with workflow to fully realize their potential.