1. Evisceration of the globe and artificial vitreous;Mules;The Ophthalmic Review,1885
2. Note on early case of Mules' operation;Grimsdale;Br J Ophthalmol,1919
3. The quasi-integrated buried muscle cone implant with good motility and advantages for prosthetic fitting;Allen;Trans Am Acad Ophthalmol Otolaryngol,1960
4. A buried orbital implant of plastic sponge;Pearlman;Am J Ophthalmol,1953