How Does Spinal Anesthesia Effect Eye Pressure During Surgery

The Effect of Spinal Anesthesia on Intraoculary Pressure During Lower Extremity Surgery

Status

Not yet recruiting

Phases

Unknown

Study type

Observational

Source

ANZCTR

Registry ID

ACTRN12618000832279

Enrollment

Registered

2018-05-16

Start date

2018-07-02

Completion date

Unknown

Last updated

2018-06-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Intraocular pressure (IOP) depends on the balance between humoral fluid production and drainage, and different pressures can be measured between the right and left eyes with stimuli causing sympathoadrenal stimulation such as laryngoscopy and endotracheal intubation (about 5 min). It has been aimed to investigate how does spinal anesthesia change the intraoculary pressure.

Interventions

intraocular pressure will be measured with applanation tonometer. All cases will be evaluated before surgery(first intraoculary pressure measurement), then the second measurement will be done 5 minutes after spinal anesthesia was applied.

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Healthy volunteers

Inclusion criteria

voluntary patients ASA physical status I-II patients Aged 18-65 years Elective artroscopic knee surgery patients who are operated under spinal anesthesia

Exclusion criteria

Chronic diseases except regular hypertension Known allergies to any anesthetic drugs used in the study Eye disease or surgery in the medical history Any contrendications for spinal anesthesia

Outcome results