In 1993 photographer John Dugdale photographed his Hudson River Valley farmhouse for the New York Times magazine. At that time, he was best know for his atmospheric portraits and still-lifes using the cyantype process, an early form of photography. The photographs were published just before an AIDS related stroke took almost all his sight and left him hospitalized for months. Since that time, he has continued to work with the help of an assistant, sketching and titling each image before it’s made. Recently, he has shot a campaign for the Broadway revival of “The Miracle Worker”. Here he explains the process he now uses as a blind photographer.