All citizens over 18 years of age who have been residents of the Commonwealth one year, and of the county, city, or town in which they reside six months next preceding their being summoned to serve as such, and competent in other respects, except as hereinafter provided, shall be liable to serve as jurors. No person shall be deemed incompetent to serve on any jury because of blindness or partial blindness. Military personnel of the United States Army, Air Force, Marine Corps, Coast Guard, Space Force, or Navy shall not be considered residents of this Commonwealth by reason of their being stationed herein.