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Color vision assessment following cataract surgery using anomaloscope

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Zabel J., Michalak K. P., Olszewski J., Koszałkowski M., Przekoracka-Krawczyk A.
OphthaTherapy
|
2021
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vol. 8
|
issue 4
265-273
EN
Aim: To evaluate the impact of cataract on color vision detection using an anomaloscope. Methods: 12 patients aged 64–82 years with history of cataract surgery in one eye and mature cataracts in the other eye were examined for color vision using the Rayleigh and the Moreland anomaloscope tests. Results: Different patterns of blue and green color vision deterioration have been observed in the eye with cataract as compared to the IOL eye. A decrease in M1 to approximately 1 (the minimum of the Moreland test scale) was observed in 5 out of 12 participants, whereas an increase in M2 to 99 (the maximum of the Moreland test scale) was observed in 6 out of 12 subjects. R1 found in the Rayleigh test was significantly lower in the cataract eyes as compared to the IOL eyes (38.9 ± 2.3 vs. 43.4 ± 1.6; p < 0.001). Conclusions: It has been shown that cataract causes a decrease in color sensitivity, especially affecting green and blue colors. Following IOL implantation, the previously deteriorated vision of green and blue was clearly improved. The most valuable parameters of the anomaloscope test, which enable to determine cataract severity, were M1, M2 and R1.
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