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Transient changes of intraocular pressure and anterior segment configuration after diagnostic mydriasis with 1%

I-Lun Tsai1, Ching-Yao Tsai, Li-Lin Kuo

  • 1Department of Ophthalmology, ZhongXing Branch, Taipei City Hospital, Taipei, Taiwan.

Clinical & Experimental Optometry
|November 15, 2011
PubMed

Insights

Diagnostic mydriasis with tropicamide did not significantly alter intraocular pressure (IOP) in children. However, significant changes in anterior chamber configuration occurred, and IOP monitoring is advised due to wide individual variations.

Area of Science:

  • Ophthalmology
  • Pediatric Ophthalmology
  • Ocular Biometry

Background:

  • Diagnostic mydriasis using tropicamide is common in pediatric eye exams.
  • Understanding its effects on intraocular pressure (IOP) and anterior chamber configuration is crucial.

Purpose of the Study:

  • To investigate the association between transient changes in intraocular pressure (IOP) and anterior chamber configuration in children following diagnostic mydriasis with 1% tropicamide.

Main Methods:

  • A prospective case-control study enrolled 163 children (myopic and emmetropic).
  • Comprehensive ophthalmological examinations were performed, including IOP measurement and Pentacam imaging before and after mydriasis.

Main Results:

  • Mydriasis led to increased anterior chamber angle, depth, and volume in both myopic and emmetropic children.
  • Lens thickness decreased post-mydriasis, while IOP showed no significant overall change.
  • Anterior chamber parameters were not correlated with IOP changes.

Conclusions:

  • While overall IOP did not change significantly after mydriasis, substantial inter-individual variations were observed.
  • This variability highlights the importance of monitoring intraocular pressure when using mydriatics or cycloplegics in pediatric patients.
Abstract

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