The situation wherein the redshift is making the stars difficult to see is not, in any way, preventing the astronomers from getting a good view of distant stars.
When light or other electromagnetic radiation from an object is expands in wavelength, or moved to the red end of the spectrum, the redshift happens. An increase in wavelength and being equivalent to a lower frequency and a lesser photon energy, following the quantum theories of light and the wave is called the redder, whether or not the radiation is inside the spectrum.
The spectroscopic observations of astronomical objects can see redshifts and its value is regarded by the letter z.