Clinical Research Directory

The Effect of Labor on Intraocular Pressure Fluctuation in Healthy Eyes

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.

Impact of Delivery Method Elite Athletes.

Labor itself can occur spontaneously vaginally, with the help of extraction methods, or via cesarean section. It can also be planned or awaited for the spontaneous onset of uterine contractions. Each method has its advantages and disadvantages regarding potential damage to the pelvic floor and its stability in vaginal delivery or extraction methods, or concerning the stability of the abdominal wall with subsequent wound healing after a cesarean section. The aim of the study is to retrospectively and prospectively determine the impact of the method of delivery on the performance of female athletes through a questionnaire study. Investigators would like to answer the question of whether cesarean delivery means a later return to training for athletes, whether pregnancy is problematic for female athletes in relation to their BMI, and whether pregnancy often signifies the end of a sports career for female athletes. The questionnaire also includes questions regarding overall women's health-menstrual cycle, incontinence, and mental health of female athletes. Prospectively, the questionnaire will be sent to all female athletes who meet representation limits once a year and for two years after retiring from the national team.