aphakia उदाहरण वाक्य

The photoreceptor cells of the retina are sensitive to near ultraviolet light and people lacking a lens ( a condition known as aphakia ) see near ultraviolet light ( down to 300 nm ) as whitish blue, or for some wavelengths, whitish violet, probably because all three types of cones are roughly equally sensitive to ultraviolet light, but blue cones a bit more.