<ul><li>sent in magnet case</li><li>Magnification 2.97X, Working distance 47 mm</li><li>View the retina including periphery using a head-mounted BIO</li><li>Higher magnification than 28D. Ideal for pediatric examination, when scleral indentation is required .</li></ul><br><br>20D ophthalmic BIO Lens. BEXCO 20D Double Aspheric Lens Magnification 2.97X, Working distance 47 mm. View the retina including periphery using a head-mounted BIO Higher magnification than 28D. Ideal for pediatric examination, when scleral indentation is required and for patients with nystagmus. Useful when slit lamp examination is not possible.

20D Double Aspheric Lens

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