For pterygium, hypopyon, and dimness of vision. (From Oribasius.) Of the magnet-stone, of scraped verdigris (xyston), of reddle, of ammoniac perfume, of each dr. iv; of saffron, dr. ij; of Attic honey half a spoonful. It also answers for leucoma.
For carbuncle and carcinoma. Carcinoma is an affection of the cornea, attended with pain, distension, redness of the tunics, and pungent agony, extending to the temples, more particularly if shaken. They loathe their food, and have the pain increased by acrid things. The affection is incurable, but may be alleviated by a milk-diet, farinaceous and otherwise wholesome food, devoid of all acrimony; and the injection of soothing collyria, such as the Spodiac, Severianum, and the like. We must previously attend that the general system be in a proper temperament. Carbuncle also is a malignant ulcer of the sloughy kind, forming sometimes in the ball of the eye, sometimes in the eyelid, as in the other parts of the body. In cases of carbuncle of the ball of the eye, we must first evacuate with a clyster, and then purge moderately with boiled milk, afterwards foment with a sponge, and apply a cataplasm of the flour of tares, or of wheat boiled in honied water, or sometimes we may add pounded iris, and wash the eye with milk. If the ulcer spread, we may apply a cataplasm of lentils with honey or boiled quinces: if it continue spreading, we may use the boiled leaves of the olive, the rind of the pomegranate boiled in wine and pounded with honey. When the ulceration stops, and the eschar falls off by the application of the medicine about to be described, and the ulcers have become clean, we may apply a cataplasm of the roasted yelks of eggs, triturated with saffron and honey, until the ulcer is healed. The medicine is this: Of spodium, dr. iv; of myrrh not much toasted, dr. iij, and oboli iij; triturate in Aminæan wine until it become dry, mix old Cretan sweet wine, and having triturated, lay up the liquid in an earthen vessel, and anoint with it. For carbuncles of the eyelids, having cut an acid pomegranate, boil it whole in vinegar, and, when softened, pound and put it into a linen cloth, and use. Change twice or thrice during the day, and once during the night.
On mydriasis. When the pupil does not appear changed in colour, but much wider than natural, and when it sometimes wholly impairs the vision, and sometimes nearly so, and when every object appears smaller, the affection is called mydriasis. The cause of it is some redundant humour. We must cure it by bleeding from the arm, or purging; but, if not, by dividing the veins in the angles of the eye, and then applying a cupping instrument to the back part of the head, and bathing the face and eyes with sea-water, or, if it be not at hand, with brine or oxycrate. We must also use the remedies which are applicable to phyletænæ or blisters.
On phthisis and atrophy. Phthisis is an affection of the pupil, which is contracted, and appears duller and more rugose than usual, but objects seem larger than natural. The cause of it is condensation, mostly occasioned by dryness. Phthisis differs from atrophy in this, that phthisis renders the pupil contracted, whereas in atrophy the whole eye is smaller and more depressed. We may cure them by exercise, and rubbing carefully the head, the face, and the eyes; by bathing the face with water, and anointing the head with some healing ointment; and smearing the eyes with an attenuant and acrid composition, such as the following: Of ammoniac, dr. j; of crocomagma, dr. iv; of saffron, dr. ij; of verdigris, dr. j. Triturate in water, form and use.
For nyctalopia. In the disease called nyctalopia, the patient sees during the day, but at sunset his vision becomes dimmer, and when night comes on he does not see at all. We must effect the cure by bleeding from the arm and the angle of the eye, then purging or evacuating by a clyster, and afterwards ordering masticatories or sternutatories. Before food, we give hyssop to drink, or rue; but, if the disease do not yield, we must again administer the purgative medicine formed from scammony, and castor, anoint with clarified honey, and make the patient shut his eyelids, so as to retain the liquid application. Or of burnt alum, p. ij; of fossile salt, p. j; triturate with honey and anoint.—Another: Having roasted the liver of a goat, collect the ichor during the roasting and anoint, but give the liver itself to eat; or boil, and direct the vapours to be received with open eyes.
For glaucoma and suffusion. (From Ruffus.) The ancients considered glaucoma and suffusion as the same disease; but by their successors glaucoma has been accounted an affection of the crystalline humour, which is changed by a watery substance to a cerulean colour; but suffusion is reckoned a defluxion of humours concreted between the cornea and the crystalline lens. Glaucoma is in every case incurable. Suffusion may indeed be cured, but not always. We may try to cure suffusion before the disease is completely formed, by taking blood from the arm, by purging and acrid clysters, such as those made from the decoction of centaury, or of the bitter cucumber, and by keeping the bowels for some time in a loose state. Cupping instruments with scarifications may be applied to the hind-head; the patient must drink water during the whole regimen, take attenuant food, and, in process of time, masticatories may be used for a few days with advantage. When the vision is depraved, as, for example, gnats appearing before the eyes, which case proceeds from a cacochymy or from bilious vapours ascending to the head, we may give for a time the bitter medicine from aloes, or purge with it. To the eyes we must make applications at first simple, such as honey and oil, with the juice of fennel, and afterwards compound, such as this: Of sagapene, dr. ij; of Cyrenaic juice, of white hellebore, of each, dr. vj; triturate with eight heminæ of honey. We, says Oribasius, use the following medicine: Of the juice of wild carrots, of germander, of cresses, of each, equal parts; triturate. The following collyria are beneficial, namely, that from the juice of the fennel, that called proteus, the thalasseros and that from opobalsam. The collyria prepared from them are useful, and the decoction of fennel in the commencement answers well as a fomentation, and that from juices, opobalsam, honey, old oil, and the like.
On amaurosis and dimness of sight. Amaurosis is, for the most part, a complete impediment of the sight without any apparent affection about the eye; and dimness of sight is an imperfection of vision arising without any sensible cause. The same mode of cure as that described for suffusion applies generally in this case; but, in particular, blood may be abstracted from the corners of the eye, leeches applied to the temples, and friction of the extremities. In process of time we must have recourse to sternutatories, emetics with an empty stomach, and the application of ointments, at first with equal parts of honey and oil, and afterwards with the under-mentioned composition: Of saffron, two oboli; of the gall of the hyæna, dr. j; of common pepper, eighty-five grains; of fennel juice, dr. xvj; of ammoniac perfume, dr. j. Triturate the dry substances with the juice, add four spoonfuls of honey, prepare and lay up in a copper vessel for use. Before using, let him foment the eyes by immersing them in hot sea-water.
On strabismus, or squinting. Congenital squinting is cured by the application of a mask, so that the children are compelled to look straight forwards; for strabismus is a spasmodic affection of the muscles which move the ball of the eye. And the lamp should be placed fairly opposite, and not so as to shine obliquely. When the eye is turned to the nose, purple flocks of wool should be fastened to the outer angle of the eye, so that by looking steadily at them, the persons affected may correct the state of the eyes.
On ecpiesmus. The eyes are sometimes forced out, so as to remain prominent. When this happens from strangulation, we must let blood from the arm; but if otherwise, we must purge with black hellebore or scammony. When the eyes become prominent from the pain of labour, the complaint is often removed by the cleansing after parturition; hence we ought to promote it; and, in men, after phlebotomy, if it do not abate, we may affix a cupping instrument to the back part of the head, and apply wool smeared with honey, or flocks of it with water, and bind a compress gently above it. Cold salt water poured upon the face is likewise suitable to them, and also the juice of endive and knot-grass, rubbed in with the juice of poppy, and whatever else can repress and contract.
On synchysis, or confusion. Confusion of the sight occasioned by a blow may be cured by bleeding from the arm, and by filling the whole eye with the blood of a newly-slaughtered animal, of a turtle in particular, but, if not, of a pigeon, and then applying soft wool which has been immersed in an egg beaten up with wine and rose-oil, and binding it on the place. The same thing is to be done next day; and on the third, it is to be fomented, washed with milk, and suitable cataplasms applied; after which it is to be anointed with the remedies for old affections, such as Chiac.