Description
The Volk G‑3 is a versatile three-mirror gonioscopy lens designed for detailed examination of the anterior chamber angle and retina. Its all-glass optical construction delivers clear visualization of the iridocorneal angle, retina from the equator to the ora serrata and the mid-peripheral or peripheral retina.
The three mirrors are positioned at 60°, 66° and 76°. Each mirror provides a dedicated anatomical view, while the central lens offers a clear view of the posterior pole.
The G‑3 is available in a flanged standard configuration for enhanced stability during procedures such as laser trabeculoplasty, a non-flanged standard configuration for routine gonioscopy and a compact, non-flanged mini version.
Key Features
- Goldmann-style three-mirror design
- All-glass optical construction
- Views the anterior chamber angle and multiple retinal regions
- Central lens for posterior-pole observation
- Mirror angles of 60°, 66° and 76°
- Flanged configuration suitable for laser trabeculoplasty
- Non-flanged configuration for routine gonioscopy
- Compact mini configuration available
- Single-lens protective case included
Mirror Views
| Mirror | Clinical view |
|---|---|
| 60° | Iridocorneal angle |
| 66° | Retina from the equator to the ora serrata |
| 76° | Mid-peripheral and peripheral retina |
| Central lens | Posterior pole |
Additional Information
| Specification | VG3—Flanged | VG3NF—Non-Flanged | VG3MININF—Mini |
|---|---|---|---|
| Number of mirrors | 3 | 3 | 3 |
| Mirror angles | 60° / 66° / 76° | 60° / 66° / 76° | 60° / 66° / 76° |
| Image magnification | 1.06× | 1.03× | 1.0× |
| Laser spot factor | 0.94× | 0.97× | 1.0× |
| Contact diameter | 15 mm | 11.4 mm | 9.6 mm |
| Flange | Yes | No | No |
| Size | Standard | Standard | Mini |
| Material | Optical glass | Optical glass | Optical glass |
| Single-lens case | Included | Included | Included |
Recommended Applications
- Gonioscopy
- Anterior chamber angle evaluation
- Glaucoma examination
- Peripheral retinal examination
- Examination from the equator to the ora serrata
- Posterior-pole observation
- Laser trabeculoplasty with the flanged model
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