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Ocular Gaasterland 1X Four Mirror Gonio

Ocular Gaasterland 1X Four Mirror Gonio. 1X magnification with advanced Laserlight® HD anti-reflective coating on the anterior surface offers a maximum image brightness and contrast. High Refractive Index (HRI) glass provides total internal reflection (TIR) even with fluid in contact with the mirrors. Larger field means no need to rotate lens to see entire anterior chamber angle. Outstanding for laser and diagnostic applications (15mm and 17mm flange adapters recommended for laser procedures). Compatible with visible and near infrared lasers. Choice of 15mm or 17mm flange adapters, small ring or ergonomic handle. Flange adapters not available for handled version. Purchased with 15mm or 17mm lens flange adapters eliminates the need to purchase additional lenses with dedicated flanges. Flange cover is easily removed from the lens for cleaning. Methylcellulose not required.


Ocular Gaasterland 1X Four Mirror Gonio (OG4MG-1X)

  • Gonio Mag.: 1.00x
  • Contact Diameter: 8.5mm
  • Lens Height: 22mm
  • Ring Diameter: 24.5mm
  • Static Gonio FOV: 90°+


The new Laserlight HD anti-reflective coating was specially designed to minimize reflection on high index lenses. The high definition images that can be achieved with this coating are ideal for digital imaging applications. Reflections are reduced 50-80% compared with traditional coatings. Laserlight HD significantly increases image brightness and maximizes laser efficiency. Laserlight HD has a more spectrally neutral reflection and yields a more natural image color palette. It surpasses MIL-C-48497 standard for coating durability and is highly scratch resistant.

Consider some of the benefits of anti-reflective coatings.

Minimum reflection and enhanced image quality are essential considerations for slit lamp examinations. Many eye doctors are converting to exclusive use of laser lenses for diagnostic use, because of significantly greater image clarity and resolution. For laser application, transmission of the treatment beam is maximized. This is important for optimizing the interaction of the laser energy with the target tissue. Reflectance of the aiming beam and slit lamp source is minimized. Although there is certainly a safety factor added by reducing these reflections, the primary benefit is an increase in image contrast and resolution of the treatment area.

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