Related Experiment Video
Updated: May 6, 2026

Intense Pulsed Light for the Treatment of Dry Eye Owing to Meibomian Gland Dysfunction
Published on: April 1, 2019
Improving the diagnostic accuracy of referrals for papilloedema (DIPP) study: protocol for a mixed-methods study
Alyson Huntley1, Olivia Skrobot2, Matthew J Ridd2
1Centre of Academic Primary Care, University of Bristol, Bristol, UK alyson.huntley@bristol.ac.uk.
Insights
This study aims to improve the identification of papilloedema, a sign of serious illness, by developing new guidelines. This will help reduce unnecessary hospital referrals and ensure timely care for patients needing it.
Area of Science:
- Ophthalmology
- Neurology
- Health Services Research
Background:
- Papilloedema can indicate life-threatening conditions like brain tumors, necessitating urgent referral.
- Benign optic nerve variations (pseudopapilloedema) are often misidentified, leading to increased, unnecessary hospital referrals.
- Increased referrals strain hospital services and may delay care for patients with true papilloedema.
Purpose of the Study:
- To develop evidence-based guidelines and educational materials for healthcare professionals to accurately identify papilloedema.
- To improve diagnostic and referral pathways for suspected papilloedema in England.
- To reduce unnecessary hospital referrals and optimize healthcare resource allocation.
Main Methods:
- Collecting qualitative and quantitative data via Freedom of Information requests to Integrated Care Boards.
- Conducting surveys and interviews with community and hospital healthcare professionals.
- Utilizing a Delphi process to achieve consensus on best practices among experts, commissioners, and patients.
Main Results:
- Data collection on current referral practices for suspected papilloedema is underway.
- Evidence gathering will inform the development of consensus-based guidelines.
- Guidelines and educational materials will be created for national implementation.
Conclusions:
- Accurate identification of papilloedema is crucial for timely diagnosis of serious conditions.
- Improved guidelines and education can reduce misdiagnosis and inappropriate referrals.
- The DIPP study aims to enhance patient care and healthcare system efficiency.
Introduction:
Papilloedema can be the first sign of life-threatening disease, for example, brain tumours. Due to the potential seriousness of this clinical sign, the detection of papilloedema would normally prompt urgent hospital referral for further investigation. The problem is that many benign structural variations of optic nerve anatomy can be mistaken for papilloedema, so-called pseudopapilloedema. The consequence is that many people are referred to hospital because they are incorrectly identified to have papilloedema when they don't. As a result, hospital referrals of people with suspected papilloedema in England have increased sharply, leading to increased demand for overstretched hospital services and potentially longer waiting times for hospital appointments for those who do have papilloedema.The work programme is aimed at the development of guidelines and educational materials that will help support health professionals to correctly identify people with papilloedema. This article describes the protocol for gathering evidence of current referral practices and pathways for people suspected to have papilloedema in England and the development of guidelines based on this evidence and extensive engagement with community- and hospital-based healthcare professionals, patients, and the public.
Methods And Analysis:
Both qualitative and quantitative data will be collected from Freedom of Information requests to Integrated Care Boards across England about how they organise their community and hospital services for people with suspected papilloedema, with and without headache. Surveys and qualitative interviews of relevant community and hospital healthcare professionals based in England will collect data on how and when people with papilloedema and pseudopapilloedema with or without headache are currently identified and referred to hospital, if needed. This information will be used to inform a Delphi process with the aim of reaching consensus among health professional experts, commissioners and patients on what the most evidence-based and safe diagnostic and referral practices should be for people with suspected papilloedema. The tailored guidelines will be written for healthcare professionals and patients. We will create a range of educational materials and a website designed for health professionals and patients to support the national roll-out and implementation of DIPP study guidelines.
Ethics And Dissemination:
Ethical approval was granted by the University of Bristol Faculty of Health Sciences Ethics committee (FREC reference: 12457) and Health Research Authority (IRAS no.: 320395). Results of the study will be published on our DIPP study website and disseminated to our stakeholder groups through peer-reviewed journal publications and conference presentations.

