Description

The Volk G-1 One-Mirror Glass Trabeculum Lens is an essential tool for ophthalmic professionals, specifically designed for detailed gonioscopic examination and treatment of the anterior chamber angle and trabecular meshwork. This lens is particularly beneficial in procedures such as selective laser trabeculoplasty (SLT) and other anterior segment therapies.

Key Features

• Optical Clarity: Constructed entirely from optical-grade glass, this lens offers superior clarity and durability, ensuring precise visualization.
• Single Mirror Design: The lens features a single mirror, typically with a 62° angle, providing high magnification (1.50x for VG1 and 1.00x for VG1NF) for detailed viewing.
• Laser Spot Magnification: With a laser spot magnification factor of 0.67x, it enhances the precision of laser treatments.

Adaptability

• Contact Options: Available in flanged (VG1) and non-flanged (VG1NF) versions, it adapts to different patient anatomies. The flanged version uses a coupling fluid like methylcellulose, while the non-flanged version can use natural tears or methylcellulose.
• Anti-Reflective Coating: The VG1 model includes an anti-reflective BBAR laser coating to minimize reflections during procedures.

Design Specifications

• Contact Diameter: The lens has a contact diameter of 15 mm and a curved upper surface, optimizing the laser beam profile for SLT variants.
• Reflective Facet: A large internally reflective facet provides a clear view of the chamber angle, crucial for effective examination and treatment.

Usage and Maintenance

Designed for use with a biomicroscope by trained, licensed physicians, the lens requires careful handling and maintenance. Key guidelines include:

• Cleaning: Use mild, pH-neutral detergents and avoid harsh chemicals like alcohol or acetone.
• Rinsing: Rinse with sterile, distilled, or deionized water and dry with ultra-soft, low-lint cotton cloths.
• Disinfection: Approved solutions such as Cidex OPA or glutaraldehyde are recommended, following specific soak times and concentrations.
• Sterilization: If necessary, use steam sterilization or V-Pro/Amsco systems, avoiding methods like autoclaving or Sterrad that could damage the lens.

Storage

Store the lens in a clean, dry environment at room temperature, using appropriate cases or trays. Avoid storage in black leatherette or clamshell cases to prevent damage.

Disposal

Dispose of the lens according to local regulations, ensuring it is not discarded as unsorted municipal waste. This careful management helps maintain the lens's integrity and prolongs its useful life, making it a reliable asset in ophthalmic care.