I Just Noticed That I See The Color Of The

I just noticed that I see the color of the grass differently depending on which eye is open. Left eye natural green right eye is more brownish. I first noticed when I looked through a picket fence and it looked like the lawn on the other side was striped brown and green. 58 yr male 6 ft 195 lbs no diabetes blood pressure not high but maybe marginal (130 / 80) non (former) smoker 3 years quit. Thanks
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