[Central retinal sensitivity assessment with microperimetry in patients with primary open angle glaucoma]. / Ocena czulosci siatkówki centrainej metoda mikroperymetrii u chorych na jaskre pierwotna otwartego kata.

INTRODUCTION: Visual field defects in glaucomatous patients found in perimetry are analysed using increasingly more sophisticated methods. One of these methods is microperimetry, which enables detecting the progression of changes in particular central retinal quadrants in eyes with primary open angle glaucoma, especially at early stages of the disease. MATERIAL AND METHODS: 99 eyes of 57 patients--men and women aged 40 to 65 years--were enrolled in the study. Retinal sensitivity in the central perimacular, 12-degree area divided into four quadrants (temporal, nasal, superior and inferior) plus the fovea was assessed with microperimetry. The mean visual field defects in particular areas were compared and analysed using the ANOVA rank Kruskal-Wallis test. RESULTS: The biggest defect in the visual field was found in both superior quadrants. Only slightly milder defects were demonstrated within the fovea. The defects were the least pronounced within the inferior temporal and nasal quadrants. CONCLUSIONS: Microperimetry enables detection and appreciation of changes in sensitivity of individual central retinal quadrants, which is of significance in the diagnosis of early glaucoma.

[Assessment of blood flow in retinal pigment degeneration]. / Ocena przeplywu naczyniowego krwi w zwyrodnieniu barwnikowym siatkówki.

Degeneratio pigmentosa retinae (RP) is one of the most common inherited retinal disease. The authors analyzed the blood flow in the central retinal artery using the DRG Retina Doppler. The blood flow velocity depending on the perimetry was also measured. The outcome of our study was compared to the results obtained from the control group of healthy patients. The comparison showed statistically significant decrease in blood flow velocity in RP patients: Vmax, Vmin, Vaverage. The parameters: resistance index (RI), pulsation rate (PI) did not differ from normal values. Although we observed that the blood flow in RP was decreased even in the case of normal perimetry. The worse the perimetry was, the more reduced was the blood flow. Measurements of blood flow may be of use in monitoring the progression of the disease as well as the effects of therapy.