What is the ruling of using corrective contact lenses for both males and females? Taking into account that contact lenses can be colored, does wearing them deceive the viewer, fall under tampering with God’s creation, or exposing adornment to other than one's unmarriageable kin?
It is legally permissible to wear [colored] contact lenses as described above since it does not entail deceiving the onlooker as it is considered analogous to kohl which is a permissible external adornment.
Wearing colored contact lenses does not entail changing Allah’s creation because they are analogous to dying the hair; the only difference between them is that the eyes are part of the face which is permissible to reveal, while it is impermissible to uncover the hair except in front of one’s unmarriageable kin and husband. The similarity between wearing colored contact lenses and dying the hair pertains only to the coloring process which is not considered changing what Allah has created, although it is unlawful to uncover the hair before anyone other than one’s unmarriageable kin.
Based on the above, colored contact lenses are not among the unlawful adornments.
And Allah Most High knows best.