Weight gain/loss and eyesight
Hello, I have been working in eyecare for over six years, and I can tell you that many things affect our vision, including weight loss and gain.
The pressure with in the eye itself can increase with streneous activity, such as lifting heavy objects. When one is more out of shape, more energy is needed to do such things, and the body is in a more constant state of exertion, bringing the pressure up.
High pressures can also be an indicator of types of glaucomas.
Also, as we lose weight and regain our health, various other aspects of our eye health will change. Diabetics have to keep thier blood sugars regulated, or risk diabetic retinopathy, where extra blood vessels grow in the eye, some bursting and causing bits of blood to float around the visual field of the eye.
There are a lot of reasons why losing weight, or more accurately, regaining your health can change your vision. It changes other aspects of you, such as bringing cholesterol and hypertension levels down, increasing stamina and edurance and over all well being. Eyesight is just another benefactor in this.
Hope this helped.
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