Comparative optic disc analysis in normal pressure glaucoma, primary open-angle glaucoma, and ocular hypertension

G. Tezel, M. A. Kass, A. E. Kolker, M. B. Wax

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

Purpose: The authors wished to determine whether characteristics of optic disc and parapapillary atrophy differ between eyes with ocular hypertension, primary open-angle glaucoma (POAG) and those with normal- pressure glaucoma, including a subset of patients with normal-pressure glaucoma with evidence of serum abnormalities of humoral autoimmunity. Methods: Three hundred ninety-two eyes of 196 patients with ocular hypertension, 394 eyes of 197 patients with POAG, and 135 eyes of 68 patients with normal-pressure glaucoma were analyzed. Nerve fiber layer hemorrhage in the optic disc region, retinal arteriolar narrowing, and morphometric parameters of optic disc and parapapillary atrophy were investigated in these groups. Parapapillary atrophy was differentiated in two different zones (α and β). Results: Nerve fiber layer hemorrhage and arteriolar narrowing were found more frequently in patients with normal-pressure glaucoma than in patients with POAG (P = 0.014, P = 0.004) and ocular hypertension (P < 0.0001, P < 0.0001). Zone β was detected more often in patients with normal- pressure glaucoma than in those with ocular hypertension (P < 0.001) and POAG (P = 0.013). Although patients with normal-pressure glaucoma had more advanced neural rim loss and larger parapapillary atrophy, there were similar correlations between neural rim area and the area and extension of parapapillary atrophy in patients with normal-pressure glaucoma and POAG. Parapapillary atrophy parameters also were similar in different stages of neural rim damage in patients with normal-pressure glaucoma and POAG (P > 0.05). Optic disc characteristics were not different (P > 0.05) between the subgroups of patients with normal-pressure glaucoma. Conclusion: The authors' findings support the idea that besides the enlargement of the area and extension of parapapillary atrophy that accompanies neural damage in glaucoma, the severity of the parapapillary atrophy also increases as assessed by the increase in zone β in more damaged eyes. Furthermore, the final clinical appearance of optic nerve damage is similar among patients with POAG, normal-pressure glaucoma, and the subgroups of normal-pressure glaucoma, regardless of their possibly different mechanisms of neuropathy.

Original languageEnglish (US)
Pages (from-to)2105-2113
Number of pages9
JournalOphthalmology
Volume103
Issue number12
StatePublished - 1996

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Ocular Hypertension
Optic Disk
Glaucoma
Pressure
Atrophy
Nerve Fibers
Hemorrhage
Primary Open Angle Glaucoma
Optic Nerve
Autoimmunity
Serum

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Tezel, G., Kass, M. A., Kolker, A. E., & Wax, M. B. (1996). Comparative optic disc analysis in normal pressure glaucoma, primary open-angle glaucoma, and ocular hypertension. Ophthalmology, 103(12), 2105-2113.

Comparative optic disc analysis in normal pressure glaucoma, primary open-angle glaucoma, and ocular hypertension. / Tezel, G.; Kass, M. A.; Kolker, A. E.; Wax, M. B.

In: Ophthalmology, Vol. 103, No. 12, 1996, p. 2105-2113.

Research output: Contribution to journalArticle

Tezel, G, Kass, MA, Kolker, AE & Wax, MB 1996, 'Comparative optic disc analysis in normal pressure glaucoma, primary open-angle glaucoma, and ocular hypertension', Ophthalmology, vol. 103, no. 12, pp. 2105-2113.
Tezel, G. ; Kass, M. A. ; Kolker, A. E. ; Wax, M. B. / Comparative optic disc analysis in normal pressure glaucoma, primary open-angle glaucoma, and ocular hypertension. In: Ophthalmology. 1996 ; Vol. 103, No. 12. pp. 2105-2113.
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