Gonioscopy: A Comprehensive Guide with Atlas

Gonioscopy is a specialized ophthalmic examination that allows visualization of the anterior chamber angle, a critical anatomical structure responsible for aqueous humor drainage. This examination plays a crucial role in diagnosing and managing various ocular diseases, including glaucoma, uveitis, and corneal abnormalities.

Gonioscopy: A Text and Atlas

by Tanuj Dada

4.6 out of 5

Language	:	English
File size	:	19115 KB
Screen Reader	:	Supported
Print length	:	228 pages
Paperback	:	92 pages
Item Weight	:	3.52 ounces
Dimensions	:	5.06 x 0.21 x 7.81 inches

FREE

Indications for Gonioscopy

Gonioscopy is indicated for the following conditions:

• Glaucoma: To assess the angle structures and diagnose open-angle glaucoma, angle-closure glaucoma, and other types of glaucoma.
• Uveitis: To evaluate anterior chamber inflammation and identify the presence of synechiae and other inflammatory changes in the angle.
• Corneal abnormalities: To assess the extent of corneal scarring and neovascularization, as well as to diagnose and manage corneal ulcers and dystrophies.
• Other conditions: To assess the anterior chamber angle in patients with trauma, lens subluxation or dislocation, and other ocular abnormalities.

Contraindications for Gonioscopy

Gonioscopy is generally contraindicated in the following situations:

• Active corneal infections or severe conjunctivitis
• Corneal epithelial defects or abrasions
• Severe blepharospasm or ptosis
• Uncooperative or agitated patients

Equipment for Gonioscopy

The essential equipment required for gonioscopy includes:

• Gonioscopy lens: A specialized lens used to magnify and provide a detailed view of the anterior chamber angle.
• Gonioscopy prism: A prism that allows visualization of the angle structures by directing light into the angle.
• Gonioscopy mirror: A mirror that provides a panoramic view of the anterior chamber angle.
• Slit lamp: A microscope used to illuminate and examine the anterior segment of the eye.

Step-by-Step Gonioscopy Technique

The step-by-step technique for performing gonioscopy is as follows:

1. Prepare the patient: Instill topical anesthetic drops to numb the cornea. Position the patient comfortably at the slit lamp.
2. Insert the gonioscopy lens: Gently insert the gonioscopy lens into the inferior cul-de-sac. Ensure that the lens is centered and stable.
3. Adjust the slit lamp: Adjust the slit lamp to provide optimal illumination and magnification of the anterior chamber angle.
4. Visualize the anterior chamber angle: Direct the light beam into the angle using the gonioscopy prism or mirror.
5. Examine the angle structures: Carefully examine the angle structures, including the iris, ciliary body, trabecular meshwork, and Schlemm's canal.
6. Document the findings: Sketch or photograph the angle findings for documentation and further analysis.

Gonioscopy Atlas

The following atlas provides a comprehensive collection of high-quality images of normal and abnormal gonioscopic findings:

### Normal Gonioscopy

### Open-Angle Glaucoma

### Angle-Closure Glaucoma

### Uveitis

### Corneal Scarring

###

Gonioscopy is a valuable diagnostic tool in ophthalmology, providing a detailed view of the anterior chamber angle. This examination is essential for detecting and assessing various ocular diseases, including glaucoma, uveitis, and corneal abnormalities. By following the proper technique and utilizing the provided atlas, clinicians can enhance their gonioscopy skills and provide accurate diagnoses and appropriate management for their patients.

Gonioscopy: A Text and Atlas

by Tanuj Dada

4.6 out of 5

Language	:	English
File size	:	19115 KB
Screen Reader	:	Supported
Print length	:	228 pages
Paperback	:	92 pages
Item Weight	:	3.52 ounces
Dimensions	:	5.06 x 0.21 x 7.81 inches

FREE