Is Digitoxin more associated with a red/green or blue/yellow color defect?

Digitoxin is a cardiac glycoside that can cause various visual disturbances, including color vision deficiencies. The drug is particularly associated with a blue/yellow color defect. This phenomenon occurs due to the impact of digitoxin on the retinal cells responsible for color perception, especially affecting the short-wavelength-sensitive cones, which are more involved in the detection of blue and yellow colors.

In the context of ocular pharmacology, understanding the specific color defects associated with various drugs is vital for recognizing and managing potential side effects in patients. The blue/yellow defect can lead to challenges in color discrimination, particularly in tasks requiring differentiation between these hues. The understanding that digitoxin specifically affects blue/yellow vision helps clinicians anticipate and address potential issues related to color perception in their patients.