Interpretation of the degree of glaucomatous damage based on supra-threshold testresults, by relating it to the Mean Deviation of HFA24-2 SITA Standard perimetry.
ID
Source
Brief title
Condition
- Glaucoma and ocular hypertension
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
Print-outs of the visual fields (VF):
* Supra-threshold VF: number of missed points.
* HFA24-2 SITA Standard VF: "Mean Deviation" parameter.
Secondary outcome
not applicable
Background summary
Supra-threshold perimetry is common in population-based studies for glaucoma.
There is no literature available to adequately estimate the degree of
glaucomatous damage based on supra-threshold testresults.
Study objective
Interpretation of the degree of glaucomatous damage based on supra-threshold
testresults, by relating it to the Mean Deviation of HFA24-2 SITA Standard
perimetry.
Study design
Cross-sectional comparison of supra-threshold visual field testing to standard
full-threshold visual field testing for measuring the degree of glaucomatous
damage.
All patients visiting our outpatient department for standard HFA perimetry,
will also undergo two supra-threshold (= ST) visual fields of one randomly
selected eye.
Supra-threshold test: a custom 52-pts grid in HFA24-2 pattern.
Full-threshold test: HFA24-2 SITA Standard.
Additional data will be acquired from the patients records:
age
gender
visual acuity
eye (right / left)
refractive error
optic nerve head aspect
Study burden and risks
Minimal burden (2x5 minutes) during an already scheduled visit to our
outpatient clinic.
No risks.
Applies to glaucoma patients and glaucoma suspects who are already being
monitored with threshold perimetry, therefore, there is no risk involved of
unexpected findings (e.g. detecting disease in a previously healthy
individual).
Hanzeplein 1
9700 RB
Nederland
Hanzeplein 1
9700 RB
Nederland
Listed location countries
Age
Inclusion criteria
Glaucoma patients or glaucoma suspects that visit our outpatient department for perimetry.
Exclusion criteria
Best corrected Visual Acuity < 0.5 caused by non-glaucomatous pathology
Visual Field Loss caused by non-glaucomatous pathology
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL17606.042.07 |