This kit replaces the retracting measuring cord for the RAM Prime, RAM Prime XL, and RAM ETDRS Comes with Allen tool and nut/bolt. Easy to install. Specify 8 inch.
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*1921 Fovea Adaptation
by Dr. Selig Hecht
*2021 Relative Fovea Adaptation
by Dr Albert Hofeldt
*Method Video below:
RAM Solo
RAM Prime XL
Spot & Flood Lights
Panoramic Pinhole
RAM Chip-Lens
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