Intraocular Pressure Versus Optic Nerve Sheath Diameter

Correlation Between Intraocular Pressure and Optic Nerve Sheath Diameter

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02697825

Enrollment

100

Registered

2016-03-03

Start date

2015-09-30

Completion date

2016-04-30

Last updated

2016-03-03

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

Conditions

Intraocular Pressure, Optic Nerve Sheath Diameter

Brief summary

This study involves observing and comparing Intraocular Pressure and Optic Nerve Sheath Diameter in steep trendelenburg position. Both observations will be done in same patient over the surgical duration.

Detailed description

Steep trendelenburg position is required for various robotic surgical procedures like hysterectomy, radical prostatectomy etc. Both Intraocular Pressure and Optic Nerve Sheath Diameter are found to get increased while in this position. Intraocular Pressure will be measured by schiotz tonometer over an hourly interval whereas Optic nerve sheath diameter will be measured with use of ultrasound using a probe of 7.5 Mega hertz. Both values will be measured in both the eyes and will be compared statistically to find any correlation which may exist between the two.

Interventions

PROCEDURESchiotz tonometer for Intraocular Pressure

Both Values will be corelated

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

DIAGNOSTIC

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

40 Years to 65 Years

Healthy volunteers

Yes

Inclusion criteria

* robotic surgeries * surgical duration upto 4 hours * american society of anaesthesiologists 1 to 3

Exclusion criteria

* any history of opthalmic intervention * patient suffering from glaucoma * patients taking any diuretics for cardiac problems

Design outcomes

Primary

Measure	Time frame	Description
correlation between rise of intraocular pressure and optic nerve sheath diameter	9 months	Intraocular pressure will be measured using schiotz tonometer whereas optic nerve sheath diameter will be assessed using ultrasound in same patient at same intervals. This will give us both the values of intraocular pressure and optic nerve sheath diameter at same time which as per previous studies increases and are statistically significant. After compilation of results it will be analyzed that whether both values increases in a correlated manner or not which will give us our results that whether increase of one value can tell the increase of other value.

Countries

India

Contacts

Primary ContactNitesh Goel, MBBS,DA,DNB

drniteshgoel@gmail.com01147022222

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026