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GINMU >
03 紀要 >
031 Journal of Nara Medical Association >
Vol.50 No.4 >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/10564/529
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| Title: | DOES THE CORNEAL CONFIGURATION OF THE EYES WITH NORMAL TENSION GLAUCOMA LEAD TO UNDERESTIMATION OF INTRAOCULAR PRESSURE ? |
| Authors: | Matsumoto, Takuya
Makino, Hiroyuki
Uozato, Hiroshi
Saishin, Mototsugu |
| Keywords: | corneal configuration
corneal thickness
disc hemorrhage
intraocular pressure
normal tension glaucoma |
| Issue Date: | 31-Aug-1999 |
| Publisher: | 奈良医学会 |
| Citation: | Journal of Nara Medical Association Vol.50 No.4 p.294-302 |
| Abstract: | [Purpose] The intraocular pressure (IOP) is the only parameter that
distinguishes normal tension glaucoma (NTG) from primary open angle glaucoma
(POAG). NTG may be misdiagnosed as a result of underestimation of IOP due to corneal
configuration. Whether the corneal configuration of the eye with NTG can cause underes-
timation of IOP was investigated.
[Methods] The corneal thickness and curvature were measured in 57 eyes of 38 NTG
patients, and the IOP measurements were corrected for corneal configuration using Ehlers'
formula. The incidence of disc hemorrhage (DH) was compared between eyes with a high
corrected IOP and those with a normal corrected IOP.
[Results] Measurements of the corneal thickness and curvature in NTG eyes were similar
to those in normal eyes. The corrected IOP was above the normal range (≧20 mmHg) for
12 eyes and remained normal (＜20 mmHg) for 45 eyes. DH did not develop in any of the
eyes with a high corrected IOP, but did develop in 15 eyes with a normal corrected IOP (p
＜0.05).
[Conclusions] Some cases of NTG can be misdiagnosed as a result of underestimation of
IOP. The incidence of DH in eyes with an underestimation IOP suggests that the correct
diagnosis may be POAG in some eyes. |
| URI: | http://hdl.handle.net/10564/529 |
| ISSN: | 13450069 |
| Appears in Collections: | Vol.50 No.4
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Files in This Item:
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| 294-302p.DOES THE CORNEAL CONFIGURATION OF THE EYES WITH NORMAL TENSION GLAUCOMA.pdf | | 955Kb | Adobe PDF | View/Open |
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