ISSN: 1300-0365
Dil: Türkçe
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Diagnostic Significance And Reproducibility Of Short-wave Perimetry In Primary Open Angle Glaucoma
Nuray AKYOL*, Yusuf KİBAR**
* Doç.Dr., Fırat Üniversitesi Tıp Fakültesi Göz Hastalıkları AD** Araş.Gör.Dr., Fırat Üniversitesi Tıp Fakültesi Göz Hastalıkları AD, ELAZIĞ
Objective: To determine the reproducibility of short-wave perimetry in glaucoma patients and controls, also compare these groups by means of the global indexes.
Material and Methods: 32 eyes of 16 patients with primary open angle glaucoma (group 1), 32 eyes of 17 patients with low-tension glaucoma (group 2) and 32 eyes of 16 control (group 3) constituted the study groups. Inclusion criteria for the study were visual acuity more than 0.7 for glaucoma patients and more than 0.8 for the controls, clear media and no other ocular pathology. Glaucoma cases have had enough experience with the conventional automated perimetry; two trials in same day were executed for controls to eliminate the learning effect. All of the cases than undergone one conventional and two short-wave perimetry with Octopus 101 perimeter in one-week time. Mean defect (MD), mean sensitivity (MS) and loss variance (LV) were calculated for each test. All results were analysed with paired-t test for dependent variables in spss v. 10.0. Results were evaluated as significant when p<0.05.
Results: The groups were similar for age, visual acuity and refractive errors. Test durations were 6.98±1.23 and 10.18±3.18 in group 1; 6.45±0.91 and 8.82±2.32 in group 2; 5.98±0.62 and 9.42±2.22 in group 3 for standard and short-wave perimetry respectively. The differences between two test durations were statistically significant in all three groups. Conventional and first short-wave perimetric tests were found statistically similar for group 1 by means of MD, but they were different in group 2. Conventional and second short-wave perimetric tests were similar for MD and LV and were significantly different for MS in these groups. The conventional and first short-wave perimetry were significantly different for all global indices in group 3, but only the difference in MS were significant when the conventional and second short-wave perimetry were compared. First and second tests with short-wave perimetry were different for MS in group 1, for MD and MS in group 2, and for all parameters in group 3.
Conclusion: Short-wave perimetry has no contribution in the perimetric examination of the patients with glaucoma, while it has important value in patients with glaucoma suspect. Its reproducibility is low for all groups. The changes seen in glaucoma patients are not useful for distinguish the patients from normal as they were also seen in controls. This method needs to be used only for glaucoma suspects because of its time-consuming properties for patient and practitioner.Keywords: Short-wave perimetry, Blue-on-yellow perimetry, Glaucoma
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