1. Classification of the glaucoma. Textbook of glaucoma;Shields,1992
2. Intraocular pressure: Measurement, regulation and flow relationships;Stamper,1993
3. Intraocular pressure and glaucoma;Sommer;Am J Ophthalmol,1989
4. Garrat S. Primary Open Angle Glaucoma. Preferred Practice Pattern. American Academy of Ophthalmology, San Francisco, 1996
5. The effectiveness of intraocular pressure reduction in the treatment of normal-tension glaucoma;Am J Ophthalmol,1998