Description

The 90D lens is an essential tool for ophthalmic professionals, designed to facilitate detailed examination of the retina through a slit lamp biomicroscope. Renowned for its precision, this non-contact lens offers a comprehensive view of the retina, including critical areas such as the optic disc and macula, even through small or undilated pupils.

Optical Excellence

• Double Aspheric Glass Optics: Minimizes peripheral distortion and enhances depth of field.
• Advanced Anti-Reflective Coatings: Reduces glare and improves image clarity.

Performance Specifications

• Image Magnification: Approximately 0.76x, providing moderate magnification for thorough retinal assessment.
• Laser Spot Magnification: Typically 1.32x.
• Field of View: Static view around 74° and dynamic view up to 89°, with some models offering wider angles.
• Working Distance: Approximately 7 mm from the patient’s eye.
• Image Orientation: Produces a real, inverted image of the retina.

Design Features

• Ring Diameter: Small, commonly 30 mm, allowing easy manipulation within the orbit.
• Grip: Serrated or textured for stable handling.
• Material: Constructed from precision instrument-grade glass with a metal or colored ring.
• Color Options: Available in various colors including Black, Blue, Gold, and more.
• Weight: Approximately 9g.

Cleaning and Maintenance

• Sterilization: Compatible with methods such as ETO, steam, Sterrad®, and V-Pro®.
• Cleaning: Use mild, pH-neutral detergent and a soft, lint-free cloth. Avoid alcohol wipes and ensure a final rinse with sterile water.

Versatile Use

Ideal for ophthalmologists, optometrists, and specialists in retina and glaucoma, the 90D lens is also a valuable teaching tool. Its robust design and reliable performance make it a gold standard in fundus biomicroscopy, trusted for both general and specialized retinal examinations.