The concurrence of these 2 conditions, that is, an increase in daily IOP fluctuations and high-pressure insult with reduced optic nerve perfusion, might well explain the clearer damage of the visual field observed in our own subjects with type A behavior.
In conclusion, although with the necessary caution required by our limited number of subjects, our data permit us to suggest that:
1. Personality study could be an important element in the diagnosis and treatment of OAG as, at least in our own group, the prevalence of type A subjects proved to be extremely high (64%).
2. Subjects with type A behavior present a higher level of perimetric damage, which proves to be associated with maladjusted management methods of the stress situation and higher levels of anxiety compared with those observed in type B behavior subjects.
3. In the type A subjects, the TSNIT mean, although still within the normal range, was lower and, on the contrary, the NFI index was higher compared with those observed in the type B subjects.