NHMRC Glaucoma Guidelines - ANZGIG
NHMRC Glaucoma Guidelines - ANZGIG
NHMRC Glaucoma Guidelines - ANZGIG
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<strong>NHMRC</strong> GUIDELINES FOR THE SCREENING, PROGNOSIS, DIAGNOSIS, MANAGEMENT AND PREVENTION OF GLAUCOMA<br />
Chapter 1 – Recommendations and Evidence statements<br />
Recommendation<br />
• Survey for glaucoma<br />
particularly in<br />
patients greater<br />
than 50 years of<br />
age, with any myopia,<br />
with abnormal blood<br />
pressure, with a history<br />
of migraine, with diabetes,<br />
with peripheral vasospasm,<br />
with eye injury and/or<br />
with ongoing steroid use.<br />
• Monitor for glaucoma<br />
particularly in<br />
patients greater<br />
than 70 years<br />
of age, with<br />
IOP >21 mmHg,<br />
large and/or asymmetric<br />
cup-to-disc ratio<br />
(compared with disc<br />
size), disc haemorrhage,<br />
and thin central<br />
corneal thickness.<br />
Evidence Statements<br />
Risk factors identified from patient history –<br />
Intraocular pressure<br />
Evidence strongly supports the assessment of intraocular<br />
pressure in all individuals with suspected glaucoma, as it<br />
is a significant risk factor for the development of all forms<br />
of glaucoma.<br />
Evidence strongly supports using 21mmHg as the upper<br />
limit for usual intraocular pressure.<br />
Risk Factors identified from patient history –<br />
Alterations in cup:disc ratio and asymmetry<br />
Evidence supports the assessment of cup:disc ratio, and<br />
cup:disc ratio asymmetry, when assessing the risk of<br />
glaucomatous damage occurring.<br />
Risk Factors identified from patient history –<br />
Optic disc haemorrhage<br />
Evidence supports past signs, or current presence, of<br />
optic disc haemorrhages as significant risk factors for the<br />
development and progression of glaucoma.<br />
Evidence supports more aggressive treatment of patients<br />
with ocular hypertension, or glaucoma, who present with<br />
optic disc rim haemorrhages, or evidence of past optic disc<br />
rim haemorrhages.<br />
Risk Factors identified from patient history –<br />
Central corneal thickness<br />
Evidence supports the assessment of central corneal<br />
thickness in patients with ocular hypertension, or suspected<br />
cases of glaucoma.<br />
Risk factors for specific glaucoma types and stages –<br />
Angle closure<br />
Expert/consensus opinion suggests that hypermetropia,<br />
family history of angle closure, advancing age, female<br />
gender, Asian descent and shallow anterior chamber<br />
are risk factors for the development of angle closure,<br />
and angle closure glaucoma.<br />
Risk factors for specific glaucoma types and stages –<br />
Progression of established glaucoma<br />
Evidence indicates that factors associated with greater risk<br />
of glaucoma progression include elevated/fluctuating<br />
intraocular pressure, optic disc haemorrhage, increased<br />
severity of glaucomatous disc damage and very low blood<br />
pressure. These patients require greater reduction in<br />
intraocular pressure.<br />
Evidence<br />
Statement<br />
Grade<br />
A<br />
A<br />
C<br />
B<br />
B<br />
B<br />
B<br />
14 National Health and Medical Research Council