Is it permissible to engage in conversations unrelated to the study material with blind students during study sessions?

If the blind individuals are young children who have not reached puberty, there is no harm in speaking with them. However, if they are adults, it is permissible to speak with them only to the extent of necessity, because the ruling on a woman speaking with a blind non-mahram man does not differ from her speaking with a sighted one. Conversation between a woman and a non-mahram man generally is not permissible except for a legally recognized need, provided there is no fear of suspicion, as it could lead to temptation. As for speaking without need, it may lead to what is a pretext for temptation, and the Shari'ah blocks means that lead to the forbidden. Therefore, if the blind individuals are adults and there is no need for conversation outside the subject of study, it should be avoided.