Chap: 17: Of Epiphora.
THe word Epiphora signifieth any Defluxion into any part. But through custom it is used espe∣cially for the defluxion of a thin Rhewm from the Eyes; hence it is called involuntary wee∣ping, which flows dayly from the corners of the Eyes.
For the producing of which Humor flowing preternaturally there is an evil disposition in the part from whence it cometh, and in the part receiving it: the part that sends this humor is the Brain, which when it is too hot, or too cold gathereth a watery Humor, and so sends it to the inferior parts, which are fit to receive it: The part receiving is the Glandle or Kernel by the great corner of the Eye, and the Caruncle upon the corner; the thinness, or thickness, or other weakness of which parts causeth that they easily entertain the humors that flow thither. Therefore an Epiphora happeneth often in an Egylops, a Lachrymal Fistula, a Rhyas, and Encanthis, because the superfluous humors use to be easily received into the parts affected.
This humor is carried from the Brain into the corners of the Eyes, somtimes by the internal Veins, somtimes by the external, as we shal shew you hereafter by their proper signs.
But the Humor which maketh an Epiphora, is somtimes cold, and brings no other inconvenience, but only defluxion, somtimes it is salt and sharp, and causeth pain, heat, and redness, and exulcera∣tion of the Eyebrows.
There need no signs to be given of Tears, they are visible. It wil appear by what hath been said whe∣ther they are cold or hot, and sharp. But we must distinguish whether they come by the internal or external Vessels. When by the internal, there is pain in the inside of the head, and somtimes violent neesing. But if they come by the external without the Skul. The Vessels of the Forehead and Tem∣ples are stretched, and the head seems to be bound about and astringent means, outwardly applyed do help.
As to the Prognostick; New Epiphora's coming from outward causes are easily cured, especially in youth: but old, and in old men very hardly. They which proceed from other diseases, as Aegy∣lops, Fistula Lachrymalis and the like, have their Cure with the diseases whence they came.
The Cure of this Disease consists in taking away the defluxion, and strengthening the part recei∣ving.
You must take away the defluxion with Evacuation of the humor offending, revulsion, derivation, and strengthening the part from whence it cometh.
The Peccant humor which is a Water superfluous in the Brain, must be evacuated with bleeding and purging.
Blood-letting is not good in a cold distemper of the Brain, except there be manifest signs of ple∣thory or fulness; but in a hot distemper, when the humors are very sharp, it is very good, and you may use it twice or thrice if need be.
You may purge by Potions, Apozemes, Pills, and the like, which you may proportion to the condition of the Patient.
Make a revulsion of the humors flowing by Cupping-glasses often applied to the shoulders, by Ve∣sicatories to rai••e blisters behind in the Neck, or with Cauteries to the hinder part of the Head, and Issues in the Arms.
In a stubborn Epiphora, a Vesicatory applyed to the fore-part of the Head doth wonders; as Forestus sheweth, Obs. 11. lib. 11. concerning an Old Woman who had sore Eyes, weeping and mat∣tery,