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Related Experiment Video

Updated: Mar 20, 2026

Standardized Measurement of Nasal Membrane Transepithelial Potential Difference NPD
09:47

Standardized Measurement of Nasal Membrane Transepithelial Potential Difference NPD

Published on: September 13, 2018

17.4K

Angle closure glaucoma in the Northern Ireland Diabetic Retinopathy Screening Programme.

M A Lagan1, M K O'Gallagher1, S E Johnston1

  • 1Department of Ophthalmology, Royal Victoria Hospital, Belfast, UK.

Eye (London, England)
|May 28, 2016
PubMed
Summary

Angle closure glaucoma is a rare risk following mydriasis during diabetic retinopathy screening. Clear patient instructions on emergency eye care access post-dilation are crucial to prevent vision loss.

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Area of Science:

  • Ophthalmology
  • Public Health

Background:

  • Diabetic retinopathy screening programs utilize pharmacological mydriasis to dilate pupils for retinal imaging.
  • Angle closure glaucoma is a potential, though uncommon, complication of mydriatic eye drops.

Observation:

  • A retrospective review identified three cases of angle closure glaucoma within 14 days of mydriasis for diabetic retinopathy screening in Northern Ireland.
  • The incidence of angle closure following mydriasis in this program was determined to be 1 in 31,755 patients, or 0.75 cases annually.

Findings:

  • Pharmacological mydriasis for diabetic retinopathy screening presents a rare risk of angle closure glaucoma.
  • The calculated incidence highlights the infrequent nature of this adverse event in a large-scale screening program.

Related Experiment Videos

Last Updated: Mar 20, 2026

Standardized Measurement of Nasal Membrane Transepithelial Potential Difference NPD
09:47

Standardized Measurement of Nasal Membrane Transepithelial Potential Difference NPD

Published on: September 13, 2018

17.4K

Implications:

  • Ophthalmologists and screening programs should be aware of this rare complication.
  • Providing explicit patient guidance on seeking emergency ophthalmic care after pupil dilation is essential for timely intervention and vision preservation.