Volk G4 – Goniolaser 28.5mm lens (NF) – VG4LNF
Full 360° views of the anterior chamber angle, for thorough examinations
Volk’s G4 goniolaser lens features four precisely angled 64° mirrors to deliver a full 360° view of the anterior chamber angle during gonioscopy, with only slight rotation. Each reflecting surface incorporates a high efficiency vacuum deposited mirror coating, to provide the ultimate in protection.
The standard fluid design (flanged glass contact element) provides a stable platform during laser treatment of anterior segment. The NF (no fluid) design features a small 8.4mm radius contact surfaces that’s ideal for both static and dynamic gonioscopy while eliminating the need for viscous interface solutions such as methylcellulose.
Keeler has four NF models available, including: small handheld (25.5mm diameter), large hand held (29mm diameter), and 2-in1 handle. All 3 NF models share the same high quality imaging element. Choose the model that you are most comfortable using.
Features:
- Full 4×64° field of view
- 1.0x laser spot
- 1.0x image mag
- 8.4mm contact diameter
- Double over-coated with silicone dioxide and catalyzed polyurethane polymer for protection
Description
Features:
- Full 4×64° field of view
- 1.0x laser spot
- 1.0x image mag
- 8.4mm contact diameter
Contents:
- G4 Gonio NF lens
- Protective case
For all documentation associated with this product including cleaning instructions, product support and instruction manuals, please visit our support page here


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