How long did the Apostle Paul suffer ophthalmia?

The Apostle Paul is believed to have suffered from ophthalmia, often associated with a condition affecting his eyes, but the exact duration of his suffering is not specified in the biblical texts. Some scholars suggest that his eye affliction may have been related to his conversion experience on the road to Damascus and could have persisted throughout his ministry. However, the New Testament does not provide specific details on how long he endured this condition.