Eyebright commonly is used in European folk medicine for blepharitis and conjunctivitis, as well as for a poultice for styes and the general management of eye fatigue. It also is used internally for coughs and hoarseness, as well as a homeopathic remedy for conjunctivitis.
The OvaCue Fertility Monitor is designed to provide you with precisely this type of information. Demonstrated to be 98% accurate at predicting ovulation in government-funded studies, the OvaCue relies upon saliva and cervical mucus sampling to identify your peak fertile days each month, as well as your ovulation date.
If you don't, don't worry. The main thing to look for is some kind of change in cervical mucus mid-cycle. And if your cervical mucus pattern doesn't end up helping you predict when you ovulate, consider other methods for predicting ovulation.