To chasid of hashem, the information you received from the labor coach is correct, although more research is indicated.
To squeak, your information is also correct as far as ocular hypertension goes. However, bulging eyes is usually indicative of a thyroid problem. This does not mean the person ingests too much caffeine, although for those who have a thyroid issue, caffeine is not recommended as it may exarcebate certain aspects of the disease.