Description

The G-3 Mirror Gonio Fundus Lens by Volk is an essential tool for ophthalmic professionals, designed to provide comprehensive diagnostic capabilities. This Goldmann-style, all-glass lens features a three-mirror configuration, allowing for detailed examination of the anterior segment, peripheral retina, and equatorial regions of the eye. Its design is particularly suited for viewing the iridocorneal angle, trabecular meshwork, and both central and peripheral retina.

Key Features

• Three-Mirror Design:
• 60° Mirror: Ideal for viewing the iridocorneal angle.
• 66° Mirror: Provides imaging from the retina's equator to the ora serrata.
• 76° Mirror: Focuses on the mid-peripheral and peripheral retina.
• Central Lens: Offers a clear view of the posterior pole.

Configurations

The lens is available in multiple configurations to suit various clinical needs:

• Flanged (VG3): Recommended for laser trabeculoplasty and other laser procedures, though not compatible with SLT.
• No Flange (VG3NF): Suitable for routine gonioscopy and dynamic examinations.
• Mini, No Flange (VG3MININF): Designed for pediatric patients or those with smaller orbits.

Optical Specifications

• Image Magnification:
• Flange: 1.06x
• No Flange: 1.03x
• Mini, No Flange: 1.0x
• Laser Spot Magnification:
• Flange: 0.94x
• No Flange: 0.97x
• Mini, No Flange: 1.0x
• Contact Diameter:
• Flange: 15 mm
• No Flange: 11.4 mm
• Mini, No Flange: 9.6 mm

Advanced Features

• BBAR Coating: Some models include broadband anti-reflective laser coating.
• Coupling Agent: Uses methylcellulose or natural tears for effective contact.

Care and Maintenance

Proper care is crucial for maintaining the lens's high optical clarity. Cleaning should be performed with mild, pH-neutral detergents, and sterilization can be achieved using Ethylene Oxide, Steam, or V-Pro® systems. It is important to avoid using alcohol, peroxide, or acetone on the lens.

Storage and Disposal

Store the lens in a clean, dry case at room temperature. Disposal should comply with local regulations, ensuring it is not treated as unsorted municipal waste.

Additional Features

• Hand-Made Glass Optics: Ensures high clarity and conformity to corneal curvature.
• Engraving Options: Offers optional engraving on the lens and case.

This lens is a sophisticated instrument, enhancing the diagnostic capabilities of trained ophthalmic professionals, particularly those specializing in glaucoma management. Its precise construction and versatile design make it an invaluable addition to any clinical setting.