1. Vicarious menstruation;Dunn;Am J Obstet Gynecol,1972
2. Roy FH . Ocular differential diagnosis. 4th edn. Philadelphia: Lea and Febiger, 1989: 120–1.
3. Horn S . Acta Ophthalmol (Kbh) 1977;55:132.
4. Duke-Elder S . System of ophthalmology. 5th edn. London: Henry Kimpton; 1965. Hynek. Konnersreuth, London, 1932.
5. Bloody tears from an orbital varix;Bonavolontà;Ophthalmologica,1981