SHORT-WAVELENGTH AUTOMATED PERIMETRY IN DIABETIC PATIENTS WITHOUT RETINOPATHY
Authors:
S. Peprníková 1; K. Skorkovská 1,2,3; P. Květon 4
Authors place of work:
Oddělení nemocí očních a optometrie, Fakultní nemocnice, u sv. Anny, Brno
1; Katedra optometrie a ortoptiky, Lékařská fakulta, Masarykova, univerzita, Brno
2; Oční klinika NeoVize, Brno
3; Katedra psychologie, Pedagogická fakulta, Masarykova, univerzita, Brno
4
Published in the journal:
Čes. a slov. Oftal., 77, 2021, No. 5, p. 248-252
Category:
Original Article
doi:
https://doi.org/10.31348/2021/27
Summary
Aim: To compare the results of short-wavelength automated perimetry (SWAP) in diabetic patients without retinopathy and healthy subjects and show if it is possible to detect an abnormal function of the retina in diabetic patients before vascular changes on the retina develop. Further, the effect of diabetes duration and long-term glycaemic control on the visual field was examined.
Methods: The study group included 22 patients with diabetes type 1 or 2, without any signs of retinopathy. The control group consisted of 21 healthy subjects. Short-wavelength automated perimetry was performed on the Humphrey Field Analyzer (HFA 860, Carl Zeiss Meditec), SITA SWAP, 24-2 test. In diabetic patients, the duration of diabetes and the level of glycohemoglobin (HbA1c) was registered. The visual field indices MD (mean deviation) and PSD (pattern standard deviation) were compared between both groups by the Mann-Whitney test. The correlation between the visual field indices, HbA1c and duration of diabetes was assessed by the Spearman correlation coefficient.
Results: The mean value of MD in the study and control group was -3.64±3.66 dB and -1.48±2.12 dB respectively, the values in the study group were significantly lower (p < 0.05). Mean PSD in the study group was 2.92±1.04 dB and 2.23±0.33 dB in the control group, again the difference was statistically significant (p < 0.05). Patients in the study group suffered from diabetes for 17±9.4 years in average. The mean value of HbA1c in the study group was 60.64±16.63 mmol/mol. A significant correlation was found only for PSD and HbA1c (p > 0.05). The duration of diabetes had no effect on either of the visual field indices.
Conclusion: Short-wavelength sensitivity of retina seems to be affected in diabetic patients without clinically significant retinopathy suggesting a neuroretinal impairment at early stages of the retinopathy. We found no association between the visual field and the control or duration of diabetes.
Keywords:
diabetes – Diabetic retinopathy – blue-on-yellow perimetry – SWAP – glycohemoglobin
Zdroje
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Štítky
OphthalmologyČlánok vyšiel v časopise
Czech and Slovak Ophthalmology
2021 Číslo 5
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- SHORT-WAVELENGTH AUTOMATED PERIMETRY IN DIABETIC PATIENTS WITHOUT RETINOPATHY
- Prof. MUDr. Anton Gerinec, CSc. – ENCYKLOPÉDIA OFTALMOLÓGIE