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NR. 1/2009
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Jak rozpoznawać
jaskrę w oku krótkowzrocznym?
How to Diagnose Glaucoma in Myopic Eye?
Hanna Zając-Pytrus, Ewa Migdał,
Marta Misiuk-Hojło
Katedra i Klinika Okulistyki Akademii Medycznej we Wrocławiu
Kierownik: prof. ndzw. dr hab. n. med. Marta Misiuk-Hojło |
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| Summary: |
The high myopia is one of
the main risk factors for chronic open angle glaucoma.
The predisposing changes to glaucoma damage in high
myopic eyes are associated with excessive eyeball
stretching. These changes also cause problems in
glaucoma diagnostics techniques. Evaluation of the
perineural atrophy size is not useful in glaucoma
diagnosis or in its monitoring. Neuro-retinal rim
fragments the most susceptible to glaucomatous damage in
highly myopic eyes are localized in its infero-temporal
sectors. Some high myopic discs might not exhibit
localized but diffused glaucoma damage. Some high myopic
discs can be small, with pathologic morphology, which
makes early glaucoma detection completely impossible. In
the visual field of myopic eyes there can be defects
caused by myopic chorioretinal atrophic foci. The
borders of such defects are sharp and they usually cross
the horizontal meridian. The glaucoma field defects are
not so clearly defined and do not cross the horizontal
meridian. It is important that people with refraction
error over 8 D should be examined for glaucoma damage
and they should be treated for glaucoma until the
possibility of glaucoma damage has been excluded. The
safe maximum IOP level in high myopic eyes should be
considered 18 mmHg and in cases of higher IOP levels
anti-glaucoma therapy should be introduced. |
| Key words: |
glaucoma, high myopia,
intraocular pressure, optic disc damage. |
| Słowa kluczowe: |
jaskra, wysoka
krótkowzroczność, ciśnienie wewnątrzgałkowe, uszkodzenie
tarczy n. II. |
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