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The Effect of Labor on Intraocular Pressure Fluctuation in Healthy Eyes

NCT06016712 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 9

Last updated 2025-03-19

No results posted yet for this study

Summary

Glaucoma is a multifactorial disease, an important risk factor of which is increased intraocular pressure. Fluctuations in intraocular pressure are often associated with vaginal birth, although intraocular pressure during active pushing during stage II has never been measured.. The study will be conducted on a group of patients with healthy eyes on patients who have completely fine vision or have a small refractive error and are accustomed to wearing contact lenses. The measurement of intraocular pressure itself will be carried out using SENSIMED Triggerfish contact lenses, which measure pressure every 5 minutes for 30s. This period roughly corresponds to the duration of 1-2 contractions. Inclusion in the study will be offered to patients in the 35th to 37th week of pregnancy. Prior to measurement patients will be sent to an eye clinic for a detailed examination of both eyes, which includes measuring intraocular pressure. Subsequently, pregnancy checks will take place according to the standard scheme and in the standard scope. At the onset of uterine contractions, an ophthalmologic consultant will be called, which will measure intraocular pressure between contractions using the Tonopen device and put on SENSIMED Trigerfish contact lenses in combination with a local anesthetic. The patient will have these lenses until the end of the third stage of labor, i.e. 2 hours after the birth, when the lenses are removed. In the second stage of labor, continuous monitoring by a cardiotocograph will take place. Subsequently, the obtained data from the cardiotocograph and contact lenses will be evaluated and compared by a team of ophthalmologists and gynecologists, where the investigators will be able to assess the individual fluctuations in intraocular pressure depending on the individual contractions. The aim of the study is to demonstrate or disprove the risks to the glaucoma patient due to increased intraocular pressure during active pushing in combination with uterine contraction.

Conditions

  • Intraocular Pressure
  • Delivery

Interventions

DEVICE

SENSIMED Triggerfish Eye Lenses

Contact lenses used for measuring intraocular pressure.

Sponsors & Collaborators

  • Faculty Hospital Kralovske Vinohrady

    lead OTHER_GOV

Principal Investigators

  • Pavel Studeny, prof, MD, Ph.D. · Fakultni Nemocnice Kralovske Vinohrady

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2023-08-08
Primary Completion
2025-12-31
Completion
2025-12-31

Countries

  • Czechia

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06016712 on ClinicalTrials.gov