In their article, “CRYβA3/A1-Crystallin Knockout Develops Nuclear Cataract and Causes Impaired Lysosomal Cargo Clearance and Calpain Activation,” Hegde et al use the Phoenix MICRON® IV Slit Lamp to examine the effect of knocking out a lens structural protein. α, β and γ crystallins are lens structural proteins that are needed for transparency and refractive power