| 1. |
- Airaksinen, P J, et al.
(author)
-
Visual field and retinal nerve fibre layer in early glaucoma after optic disc haemorrhage
- 1983
-
In: Acta Ophthalmologica. - : Wiley. - 0001-639X .- 1755-375X. ; 61:2, s. 94-186
-
Journal article (peer-reviewed)abstract
- Computerized visual field testing with the Competer automatic perimeter including automatic profile perimetry revealed early glaucomatous field loss in 9 of 10 eyes with photographically demonstrable retinal nerve fibre layer (RNFL) defects after optic disc haemorrhages despite the fact than conventional routine perimetry had failed to do so. In 7 of these cases the Competer central pattern test was abnormal; in 2 cases field defects could be shown only when automatic high-resolution static profile perimetry was performed and directed according to the information present in wide-angle RNFL photographs. A field defect was also found in one of five eyes with no photographic RNFL changes. Visual field defects seem to occur in a higher proportion of cases with RNFL defects than was previously thought, but they can be very subtle and hard to find. There are, however, cases where in spite of the presence of an indisputable RNFL defect no visual field defects can be shown even with painstaking technique and conversely field defects may be present without RNFL defects. Automatic perimetry and RNFL photography complement each other in early detection and quantitation of glaucomatous damage.
|
|
| 2. |
- Dyster-Aas, K, et al.
(author)
-
Computerized visual field screening in the management of patients with ocular hypertension
- 1980
-
In: Acta Ophthalmologica. - : Wiley. - 0001-639X .- 1755-375X. ; 58:6, s. 918-928
-
Journal article (peer-reviewed)abstract
- Visual field testing which the Computer fully automatic computerized perimeter (Heijl & Krakau 1975) employing a supra-liminal screening test procedure was used in a material of 1013 eyes with ocular hypertension in which earlier routine perimetry (kinetic and static) on the Goldmann perimeter had yielded a normal result. The automatic screening was repeated if positive, and manual control perimetry was used in order to confirm or reject identified field defects. This procedure revealed field defects that could be confirmed at both automatic and manual perimetry in 3.6% of the eyes. In the control group the incidence of field defects found at manual perimetry during the same time interval was calculated at 0.4%. Thus automatic screening revealed several times more field defects than manual routine perimetry. Eyes in which repeated automatic screening had indicated defects which manual control perimetry failed to confirm, showed a high percentage of field loss at later follow-up. The results are discussed, and the conclusion is drawn that automatic screening is clearly superior to manual routine perimetry used at present. The most practical solution in many eye departments would be to use a computerized perimeter for the visual field screening of glaucoma suspects.
|
|
| 3. |
- Heijl, A, et al.
(author)
-
Computerized profile perimetry in glaucoma
- 1980
-
In: Archives of Ophthalmology. - 0003-9950. ; 98:12, s. 201-2199
-
Journal article (peer-reviewed)abstract
- The new profile testing mode of the COMPETER automatic perimeter was clinically tested and compared with careful manual profile perimetry on the Tübinger perimeter. Each of 110 patients with glaucomatous field defects, patients with suspected glaucoma, and normal subjects had one meridian tested. All of the 55 patients who showed an abnormal result on the manual profile also had abnormal findings on the automatic test. Two (4%) of the profiles labeled as normal on initial manual perimetry were identified by the automatic perimeter to be abnormal, and these defects were confirmed on repeated manual profile perimetry. The automatic perimetry gave five (9%) false-positive results in the 53 normal manual profiles, thus giving a specificity of 91%. In two of these cases, the automatic profile indicated defects in areas where the manual profile appeared normal, but there was abnormality in the manual kinetic perimetry in the affected area. The automatic profiles of the COMPETER automatic perimeter are accurate, sensitive, time-saving, and clinically useful.
|
|
| 4. |
- Heijl, A
(author)
-
Laserkirurgi vid glaukom
- 1984
-
In: Läkartidningen. - 0023-7205. ; 81:37, s. 9-3217
-
Journal article (peer-reviewed)
|
|
| 5. |
- Heijl, A, et al.
(author)
-
The short-term effect of laser trabeculoplasty on the glaucomatous visual field. A prospective study using computerized perimetry
- 1984
-
In: Acta Ophthalmologica. - 0001-639X. ; 62:5, s. 14-705
-
Journal article (peer-reviewed)abstract
- Several earlier studies have shown improvement of glaucomatous visual fields after pressure reduction achieved by acetazolamide or filtering surgery, while other studies have given conflicting results. In the present study laser trabeculoplasty was used to reduce the IOP in 42 eyes with glaucomatous visual field defects. Although good pressure reduction was achieved, no general regression of field defects was observed. The changes of the visual field were not correlated to the degree of pressure reduction. The results do not support the hypothesis that glaucomatous field defects are reversible when the IOP is reduced.
|
|
