Diagnostic Lenses — Slit Lamp Examination Accessories
A diagnostic lens is used during slit lamp examination to view structures of the eye that cannot be seen with the slit lamp alone. Supplied by BrightVision Tech, a specialized ophthalmic equipment supplier, we offer the 90D fundus lens for non-contact retinal examination.
Our Diagnostic Lens
Fundus Lens 90D (BVT-DL90D) — Double aspheric glass diagnostic lens for slit lamp fundus examination. Small diameter ring enables dynamic fundoscopy even through small pupils. 74°/89° field of view with 0.76× image magnification. 7 mm working distance. Best for routine fundus examination in eye clinics, hospital ophthalmology departments, and optometry practices.
Who Uses Diagnostic Lenses?
Eye clinics — routine fundus examination during slit lamp assessment
Hospital ophthalmology departments — diagnostic fundus screening
Optometry practices — general eye health evaluation
Equipment distributors — diagnostic accessory for slit lamp product lines
Why Choose a Non-Contact 90D Lens?
A non-contact diagnostic lens eliminates the need for gel coupling and sterilization between patients, making it ideal for high-throughput clinics. The double aspheric glass construction provides a flat, distortion-free image across the full 74° to 89° field of view, giving clinicians consistent diagnostic accuracy.
OEM & Custom Branding
OEM customization available — your logo, brand colors, and packaging. Learn about OEM options →
Frequently Asked Questions
What is the 90D lens used for?
The 90D lens is used for non-contact fundus examination during slit lamp assessment, allowing the examiner to view the retina and optic disc without direct contact with the eye.
Can it be used with small pupils?
Yes. The small diameter ring design makes this lens effective for dynamic fundoscopy even through small pupils.
What magnification does it provide?
The 90D lens provides 0.76× image magnification with a field of view of 74° to 89°.
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