- Design
- Retrospective cohort, mixed-effect Cox regression
- Population
- 92 women (184 eyes) who were glaucoma suspects before pregnancy
- Primary outcome
- Postpartum development of glaucoma
- Effect
- 57.6% converted; pre-eclampsia HR 4.30 (2.33 to 7.93); mean IOP HR 1.37 (1.26 to 1.49)
This Chinese retrospective cohort, published 23 September in the British Journal of Ophthalmology, followed 92 women (184 eyes) who were glaucoma suspects before pregnancy between 2012 and 2024.
Fifty-three (57.6%) developed glaucoma after delivery, at a mean of 2.4 years. Higher mean intraocular pressure during follow-up (HR 1.37, 95% CI 1.26 to 1.49) and pre-eclampsia (HR 4.30, 2.33 to 7.93) were independent risk factors, and the two interacted. Higher pre-pregnancy BMI appeared mildly protective (HR 0.91).
Pregnancy lowers intraocular pressure, and follow-up of glaucoma suspects often lapses around childbirth. This small study suggests the months and years after delivery are a period of real risk, especially after pre-eclampsia, which obstetricians record but ophthalmologists rarely ask about.
- Ask every female glaucoma suspect about pregnancy, delivery and pre-eclampsia.
- Schedule a postpartum review for glaucoma suspects, earlier if they had pre-eclampsia.
- Keep monitoring intraocular pressure closely for several years after delivery.
- Ask obstetric colleagues to flag known glaucoma suspects for eye follow-up after birth.
Why it matters
Links a common obstetric complication to a sight-threatening eye outcome that nobody is currently watching for.
Don't overread it
Small retrospective single-centre cohort; the high conversion rate may reflect a referred, higher-risk population.
The statistics, in plain English
A hazard ratio of 4.30 means women with pre-eclampsia developed glaucoma at about four times the rate of those without. With only 92 women, the exact size of the effect is uncertain.
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