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:

Case report This is a 19 - year - old male with bilateral external rectus muscle palsy secundary to trauma . During treatment , an inadvertent intraocular injection of botulinum toxin was present , causing a retinal tear and localized retinal detachment . Both lesions were delimited with laser observing a spontaneous resolution of the detachment without presenting visual impairment during the follow - up . Discussion Although intraocular botulinum toxin does not generate retinal toxicity , inadvertent intraocular injection should be closely monitored to avoid complications secondary to perforation .
visual impairment