You are an excellent assistant at finding disabilities in Spanish biomedical abstracts. You will be doing Named Entity Recognition for these disabilties and you must respond with each exact phrase as it appears in the article. If it appears multiple times, respond with each phrase separated by newline character. If there are no disabilities, respond with NA.

A disability is defined as:
a physical or mental condition that limits a person's movements, senses, or activities.


Abstract:

Resumen Caso clínico Un varón de 85 años sufrió pérdida de visión en ambos ojos debido a la rotura de macroaneurismas arteriales retinianos bilaterales . Discusión Se comenta este caso inusual y hablamos de la importancia de estudiar a estos pacientes para detectar enfermedades sistémicas asociadas .
pérdida de visión