Louis Emerick has admitted to causing serious injury by careless driving.
Louis Emerick has shown remorse for the accident
The Crown Prosecution Service (CPS) said the former 'Brookside' star - who played Mick Johnson on the soap - hit two 12-year-old girls with his Honda car in Wallasey in October 2022.
The CPS added that the 64-year-old actor "was not speeding but admitted that he couldn't see clearly because of the sun so he should have slowed down".
His sentencing is set for June 20.
The CPS said Emerick - who appeared in court under his full name Louis Emerick Grant - admitted two counts of causing serious injury by careless driving at Wirral Magistrates' Court.
The actor's representative said he was driving towards Wallasey Village when the two girls crossed Poulton Road at around 17:15 GMT.
They added his car cut the corner of the right hand bend, going into the "centre hatched markings" and striking the girls.
While he was "not seen to slow down or break", they noted that his speed was not "excessive".
Meanwhile, a breathalyser test didn't show any evidence Emerick - who has also appeared in the likes of 'Doctors', 'Coronation Street', 'Silent Witness', 'Casualty' and 'Last of the Summer Wine' over the years - had taken drink or drugs.
He was wearing prescription glasses which react to sunlight, and while he looked to his near side,he didn't see them because of the sun in his eyes.
Following the hearing, district Crown prosecutor Linda Melia said: "[He] was not speeding, but admitted that he couldn't see clearly because of the sun, so he should have slowed down."
He has also contacted both girls' familiesi to apologise, and shown remorse "through the investigation".
She added: "He has been fully co-operative and remorseful throughout the investigation and has apologised on numerous occasions."
And while there was no intent to "injure" the girls, Melia described the incident as a "lesson" in taking car behind the wheel.
She said: "It's clear [he] did not mean to injure these girls, but the events of that day are a lesson that, when we are at the wheel of a car, care and attention are needed at all times."