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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
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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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Angle opening distance (AOD) | The AOD measured as perpendicular distance between anterior iris surface and point at trabecular meshwork at 500 μm anterior to the scleral spur |
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| Trabecular iris space area (TISA) 500 | 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 |
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| Anterior chamber depth (ACD) | The ACD was measured as the perpendicular distance from the corneal endothelium at the corneal apex to the anterior lens surface |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| AS-OCT | Device | Anterior segment optical coherence tomography (AS OCT) is an imaging device that can acquire an anterior segment image using a noncontact method with the patient in a sitting position. This device provides reproducible and quantitative measurements of the AC angle and other anterior segment parameters. |
| Measure | Description | Time Frame |
|---|---|---|
| IOP | mmhg | up to 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| Corneal endothelial count | CD per mm2 | up to 6 months |
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Inclusion Criteria:
Exclusion Criteria:
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Patients with acute attack of ACG with phacoemulsification in this eye with YAG laser PI in the other eye
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| mohamed Salah | Contact | 01003321802 | drmsalah1982@yahoo.com |
| Name | Affiliation | Role |
|---|---|---|
| mohamed Salah | Minia faculty of medicine | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| mohamed Mahmoud | Recruiting | Minya | Minya Governorate | 61111 | Egypt |
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| ID | Term |
|---|---|
| D015812 | Glaucoma, Angle-Closure |
| ID | Term |
|---|---|
| D005901 | Glaucoma |
| D009798 | Ocular Hypertension |
| D005128 | Eye Diseases |
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| YAG laser PI | Procedure | medical procedure which uses a laser device to create a hole in the iris, thereby allowing aqueous humor to traverse directly from the posterior to the anterior chamber and, consequently, relieve a pupillary block |
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