WELCH ALLYN PRESTIGE COAXIAL-PLUS OPHTHALMOSCOPE - Prestige Opty PanOptic Ophthalmoscope Plus with Retina Transfer | Quantity - 1x EAComes available with 2 filter selections which provide optimum light levels for entering healthy eyes and those with cataracts. It has 68 focusing lenses that range from 30 to +38 diopters for better resolution. Its neutral filter provides the ideal amount of color accurate light for entering healthy eyes without unwanted reflex. The opacity setting provides the brightest light for easy entry. Prestige Opty PanOptic Ophthalmoscope Plus with Retina