AS-OCT Evaluation of Iridocorneal Angle of Patients of Angle Closure Glaucoma After Phacoemulsification

Minia University

Status: Unknown

Conditions: Glaucoma, Angle-Closure

Treatments: Procedure: YAG laser PI; Device: AS-OCT

Study type: Observational

Funder types: Other

Identifiers

NCT05332665

AS-OCT in ACG

Details and patient eligibility

About

Evaluation of the effect of phacoemulsification and YAG Laser peripheral iridotomy on the anterior chamber angle anatomic parameters in PACG eyes, using anterior segment optical coherence tomography (SS ASOCT) device

Full description

The recent treatment of ACG is phacoemulsification in patients of acute attack with YAG laser iridotomy in the other eye.

The AS-OCT will be used for evaluation of the angle of the anterior chamber parameters in both eyes after phacoemulsification and YAG laser peripheral iridotomy.

Follow up of AS-OCT will be done 1,3,6 months after surgery and we will compare results in each eye and between both eyes.

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Enrollment: 15 estimated patients

Sex: All

Ages: 30 to 60 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• patients with acute attack of angle closure glaucoma in one eye.
• Patients fit for phacoemulsification

Exclusion criteria

• 1- Patients with history of any intraocular surgery. 2- Patients with history of refractive surgery. 3- Patients with diabetic retinal vasculopathy or retinal detachment. 4- Patients with chronic angle closure glaucoma, open angle glaucoma or 2ry glaucoma

Trial design

15 participants in 3 patient groups

Angle opening distance (AOD)

Description:

The AOD measured as perpendicular distance between anterior iris surface and point at trabecular meshwork at 500 μm anterior to the scleral spur

Treatment:

Device: AS-OCT

Procedure: YAG laser PI

Trabecular iris space area (TISA) 500

Description:

TISA 500 was measured as an area bounded anteriorly by the AOD 500, posteriorly by a line drawn from the scleral spur perpendicular to the plane of the inner scleral wall to the opposing iris, superiorly by the inner corneoscleral wall, and inferiorly by the iris surface

Treatment:

Device: AS-OCT

Procedure: YAG laser PI

Anterior chamber depth (ACD)

Description:

The ACD was measured as the perpendicular distance from the corneal endothelium at the corneal apex to the anterior lens surface

Treatment:

Device: AS-OCT

Procedure: YAG laser PI