A grandmother accused of shooting at her son-in-law and daughter allegedly told police she needed to get her 'eyes fixed' so she could finish the job.

The grandmother, 51, is accused of firing five shots at her daughter and the 37-year-old man at a Nerang home in Queensland's Gold Coast on Tuesday around 11.15am.

The grandmother was granted bail when she faced Southport Magistrates Court on Wednesday on a number of charges including three acts intending to cause grievous bodily harm and discharge a weapon in a public place.

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A grandmother (pictured), 51, is accused of firing five shots at her daughter and her 37-year-old son-in-law on Tuesday at about 11.15am

It's claimed allegations of abuse were behind the domestic disturbance, the court heard.

No-one was injured in the incident but two shots narrowly missed the son-in-law, the court heard.

She left the Riverview Road home by car after the incident, police allege, before she was detained a short time later in Mudgeeraba.

The 51-year-old then told police she wanted to see an optometrist to get her 'eyes fixed' and return to the home to do the job properly, the court heard.

She then told officers she'd been annoyed her shots had missed, Senior Constable Donna Minns told the court.

No-one was injured in the incident but two shots narrowly missed the son-in-law, the court heard (police pictured at the Nerang, Gold Coast home)

She left the Riverview Road home by car after the incident, police allege, before she was detained a short time later in Mudgeeraba (police pictured at the place of the incident)

The grandmother was granted bail on Wednesday

'She said she can't believe she missed her shots,' Const Minns said.

'She said she'll get her eyes fixed ... find the gun and go back to do the job properly.'

In opposing bail, Const Minns told the court the grandmother had only given a vague indication of where she had disposed of the firearm and police were concerned she would retrieve it upon release.

Police later found a gun, believed to be the weapon used in the shooting, under a bridge over the Nerang River on Wednesday afternoon.

Despite 'grave concerns' over the possibility of her attempting to return to the home, Magistrate Joan White granted the grandmother bail.

She must reside at her daughter's home in Alexandra Hills in Brisbane under her conditions of bail. She can only travel to the Gold Coast for court matters if her daughter or partner.

She must also undergo a mental health assessment.

The matter has been adjourned until April 19.

Police later found a gun, believed to be the weapon used in the shooting, under a bridge over the Nerang River on Wednesday afternoon