Ophthalmoscope

Features: 
1) Advanced optical design, no reflection, wide and clear visual field
2) Super light, comfortable
3) +20D VOLK aspheric lenses
4) Adjustable locking button and illumination control button ensure
    comfortable observation angles
5) Filters and reflection mirror with building in dustproof device ensure good  
    observation
6) Filters: red free, cobalt blue, compensation
7) Light spot: big (F60mm), middle (F40mm), small (F20mm), suitable for 
    various pupils
8) Teaching tube, double-sided spectroscope ensures the synchronous 
    observation. Two types of smooth iris presser avoid damaging relevant
    issues