Effect of Intraocular Tamponade on Visual Perception

Effect of Intraocular Tamponade on Visual Function in the Human Eyes

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT05543018

Enrollment

Registered

2022-09-16

Start date

2022-09-12

Completion date

2023-10-28

Last updated

2022-09-16

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

Conditions

Retinal Detachment, Optic Neuropathy, Glaucoma

Keywords

Vitrectomy, Retinal detachment, Intraocular Tamponade, Silicon oil, Air tamponade

Brief summary

Intraocular tamponade used in vitrectomy operations may affects retinal function in various mechanisms.

Detailed description

Various intraocular tamponade are being used in vitrectomy operations as gases, fluids and silicon oil. The effects of these intraocular tamponade may affects the final visual outcome of the surgery.

Interventions

PROCEDUREVitrectomy operation

Vitrectomy operation to treat retinal detachment

DIAGNOSTIC_TESTElectroretinogram

Retinal function assessment using electroretinogram

Study design

Allocation

NON_RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to 70 Years

Healthy volunteers

Inclusion criteria

* primary retinal detachment patients. * patients eligible for 23 gauge pars-plana vitrectomy operation.

Exclusion criteria

* patients with axial length more than 30 millimeter that may have severe chorioretinal degenerations that may affects retinal function. * patients with macular diseases that may affects final visual outcome as macular holes and choroidal neovascular membranes.

Design outcomes

Primary

Measure	Time frame	Description
Visual acuity	Baseline and monthly after surgery till 6 months of follow up.	Changes in visual acuity measured in LogMAR units.
Retinal function amplitude	Baseline and monthly after surgery till 6 months of follow up.	Changes in electroretinogram amplitude parameters in microvolt/second measured by roland consult retinal function device.
Retinal function implicit time.	Baseline and monthly after surgery till 6 months of follow up.	Changes in electroretinogram implicit time in millisecond measured by roland consult retinal function device.

Secondary

Measure	Time frame	Description
Intraocular pressure	Baseline and monthly after surgery till 6 months of follow up.	Changes in intraocular pressure measured by goldman applanation tonometry in millimeter mercury.

Countries

Egypt

Contacts

Primary ContactAhmed A Tabl, MD

ahmad4lg@gmail.com01222328766

Outcome results

None listed

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