Podcast
Questions and Answers
The scleral spur is one of the darkest lines in the angle structures.
The scleral spur is one of the darkest lines in the angle structures.
False
The angle structures can be counted by starting from the iris insertion.
The angle structures can be counted by starting from the iris insertion.
True
Gonioscopy does not involve assessing the presence of PAS.
Gonioscopy does not involve assessing the presence of PAS.
False
Grading systems for the anterior chamber angle include Shaffer and Spaeth.
Grading systems for the anterior chamber angle include Shaffer and Spaeth.
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Indentation gonioscopy involves using a laser to assess the angle structures.
Indentation gonioscopy involves using a laser to assess the angle structures.
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The normal anatomy of the angle is not evaluated during gonioscopy.
The normal anatomy of the angle is not evaluated during gonioscopy.
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The kind of classification used for grading the angle includes Van Herrick Assignment.
The kind of classification used for grading the angle includes Van Herrick Assignment.
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Pigment presence is not considered when grading the anterior chamber angle.
Pigment presence is not considered when grading the anterior chamber angle.
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Angle structures are generally more visible in their native state.
Angle structures are generally more visible in their native state.
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Pathologies seen in the angle are not taken into consideration during grading.
Pathologies seen in the angle are not taken into consideration during grading.
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Study Notes
Gonioscopy and Pathologies in the Angle
- Gonioscopy is a technique used to view the anterior chamber angle of the eye, helping in the evaluation, management, and classification of normal and abnormal angle structures.
Optics of Gonioscopy
- The instrument used for gonioscopy is the goniolens, which is used in conjunction with the slit lamp to view angle structures.
Methods of Gonioscopy
- Direct gonioscopy: uses a goniolens to view the angle structures
- Indirect gonioscopy: uses a mirror or prism to view the angle structures
Interpretation of Gonioscopy
- Identify the proper angle structures in their natural position, including iris insertion and any abnormal angle pathology
- Classification of the angle: identify how open the angle is in its native state, amount of pigment, presence or absence of peripheral anterior synechiae (PAS), iris insertion and angulation, and any additional visible structures
Grading of the Anterior Chamber Angle
- Different grading systems are used to determine whether an angle is open or not, including:
- Shaffer grading system
- Scheie grading system
- Spaeth grading system
- Van Herick grading system
Pathologies in the Angle
- Gonioscopy helps manage angle pathologies, especially in the management of glaucoma and other angle structure anomalies
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Description
Test your knowledge on gonioscopy techniques, interpretation methods, and pathologies seen in the anterior chamber angle of the eye. This quiz is based on references from AAO Section 10 Glaucoma, Duanes Clinical Ophthalmology, and other authoritative sources.
