Different IOP, different diseases?

Michele Iester, Elisa D’Alessandro

Abstract


Glaucoma is a chronic, progressive disease characterized by typical optic nerve head changes and visual field defects. These alterations are caused by an intraocular pressure (IOP) being too high for the wellbeing of the specific optic disc. Typical clinical findings in glaucoma patients include thinning of the optic disc rim (Fig. 1), loss of retinal nerve fibers in the inferior sector with subsequent visual field defects in the superior sector.


Keywords


Glaucoma, Intraocular pressure, Normal tension glaucoma

Full Text:

PDF

References


European Glaucoma Society. Terminology and Guidelines for Glaucoma. Savona: Dogma, 2003:chapter 2.

Iester M, Mete M, Figus M, Frezzotti P. Incorporating corneal pachymetry into the management of glaucoma. J Cataract Refract Surg 2009;35:1623-8.

Tuulonen A, Airaksinen PJ. Optic disc size in exfoliative, primary open angle, and low tension glaucoma. Arch Ophthalmol 1992;110:211-213.

Caprioli J, Spaeth GL. Comparison of the optic nerve head in high- and low-tension glaucoma. Arch Ophthalmol 1985;103:1145-1149.

Greve EL, Geijssen HC. The relation between excavation and visual field in glaucoma patients with high and with low intraocular pressure. Doc Ophthalmol Proc Ser 1983;35:35-42.

Anderton S, Hitchings RA. A comparative study of visual fields of patients with low tension glaucoma and those with chronic simple glaucoma. Doc Ophthalmol Proc Ser 1983;35:97-99.

Chauhan BC, Drance SM, Douglas GR, Johnson CA. Visual field damage in normal tension and high tension glaucoma. Am J Ophthalmol 1989;108:636-642.

Drance SM. The visual fields of low tension glaucoma and shock-induced optic neuropathy. Arch Ophthalmol 1977;95:1359-1361.

Fazio P, Krupin T, Feitl ME, Werner EB, Carrè DA. Optic disc topography in patients with low-tension and primary open angle glaucoma. Arch Ophthalmol 1990;108:705-708.

Yamagami J, Araie M, Shirato S. A comparative study of optic nerve head in low- and high-tension glaucomas. Graefe’s Arch Clin Exp Ophthalmol 1992;230:446-450.

Samuelson TW, Spaeth GL. Focal and diffuse visual field defects: their realtionship to intraocular pressure. Ophthalmic Surg 1993;24:519-525.

Motolko M, Drance SM, Douglas DR. The visual field defects of low-tension glaucoma. In Greve EL, Heijl A (eds):Fifth International Visual Field Symposium. The Hague, Dr W Junk NV Publishers, 1983:107-111.

Lewis RA, Hayreh SS, Phelps CD. Optic disc and visual field correlations in primary open-angle and low-tension glaucoma. Am J Ophthalmol 1983;96:148-152.

Motolko M, Drance SM, Douglas GR. Visual field defects in low tension glaucoma. Comparison of defects in low tension glaucoma and chronic open angle glaucoma. Arch Ophthalmol 1982;100:1074-1077.

King D, Drance SM, Douglas GR, Schulzer M, Wijsman K. Comparison of visual field defects in normal-tension glaucoma and high-tension glaucoma. Am J Ophthalmol 1986;101:204-207.

Miller KM, Quigley HA. Comparison of optic disc features in low-tension and typical open-angle glaucoma. Ophthalmic Surg 1987;18:882-889.

Iester M, Mikelberg FS. Optic nerve head morphologic characteristics in high-tension and normal-tension glaucoma. Arch Ophthalmol 1999;117:1010-1013.

Iester M, Swindale NV, Mikelberg FS. Sector-based analysis of optic nerve head shape parameters and visual field indices in healthy and glaucomatous eyes. J Glaucoma 1997;6:371-376.

Iester M, De Feo F, Douglas GR. Visual field loss morphology in high- and normal-tension glaucoma. J Ophthalmol. 2012;2012:327326. Epub 2012 Feb 8

Nicolela MT, Drance SM. Various glaucomatous optic nerve appearances: clinical correlations. Ophthalmology 1996;103:640-649.

Schulzer M, Drance SM, Carter CJ, Brooks DE, Douglas GR, Lau W. Biostatistical evidence for two distinct chronic open angle glaucoma populations. Br J Ophthalmol 1990;74:196-200.

Ahmed IIK, Feldman F, Kucharrczyk W, Trope GE. Neuroradiologic screening in normal-pressure glaucoma: study results and literature review. J Glaucoma 2002;11:279-286.

Greenfield DS, Siatkowski RM, Glaser JS, Schatz NJ, Parrish RK2nd. The cupped disc. Who needs imaging? Ophthalmology 1998;105:1866-1874


Refbacks

  • There are currently no refbacks.


Copyright (c) 2016 Journal for Modeling in Ophthalmology