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Prognichthys tringa

Known as: Panamic flyingfish 
National Institutes of Health

Papers overview

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2006
2006
New Progressive Addition Lens Design: Utilizing the Varilux Ipseo Lens for Non-Adapt PAL Wearers
A progressive addition lens (PAL) is a seamless multifocal lens with the distance power in the top half of the lens that… 
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