Chapter — Sabetti-Barrett, Compendium of Moral Theology
Chapter III. On the Form of Extreme Unction
I say. The form of Extreme Unction is contained in these words: "Through this holy unction and his most gracious mercy, may the Lord pardon you whatever you have committed through sight (while the eyes are anointed, and so concerning the others). Amen." It is established from the Council of Trent, sess. 14, ch. 1, on Extreme Unction, and from the Roman Ritual. - Note nevertheless that this form must be repeated integrally at the individual unctions; but when the organs are paired, it must be said only once.
Questions
Question 1. Whether for the validity of the sacrament the expression of each sense is required, through sight, through hearing, etc.?
Resp. Negatively, such expression, whether made generally or specifically, is not required: it is lacking in the Greek form, and in the form truly sufficient for the case of necessity approved according to the Holy Office. - Cf. Pesch, loc. cit.
Question 2. What is the sufficient form in the administration of the sacrament in a case of necessity?
Resp. "Through this holy unction may the Lord pardon you whatever you have committed. Amen." Thus the Holy Office, 25 April 1906. The words altogether essential are: "Through this unction may the Lord pardon you whatever you have committed."
Question 3. Whether for validity one form suffices for all the senses, if the individual senses are distinctly expressed and anointed?
Resp. Affirmatively, for integral matter and form are had. Indeed it must be answered affirmatively if the brief form is employed once while the individual senses are anointed.