The protostactos mentioned by our author was a composition consisting of potass and lime. (See [Book Seventh, in voce, κονία].)
On trachoma. This affection does not appear to be noticed in our late treatises on diseases of the eye, and yet in our own practice we have met with some cases of it. Rowley mentions it as an asperity of the internal superficies of the eyelid. Celsus describes it by the name of aspritudo. In severe cases, he says, some scarify the inside of the eyelid with a fig leaf, a rough probe, or a scalpel. But in ordinary cases, he rather approves of using exercises, frequent baths, fomentations with hot water, attenuant food, and escharotics, such as copperas, misy, antimony, and the like. Galen and Aëtius give prescriptions for various collyria. They consist principally of detergent and caustic substances, such as sal ammoniac, squama æris, calamine, and the like. It seems to be the disease which Haly Abbas treats of by the name of lapidositas. (Pr. v, 51.)
On chalazion. We will treat more fully of the nature of this tumour in our notes on [Section XVI of the Sixth Book]. It appears to be the species of encysted tumour said by Scarpa to be well described by M. Aurelius Severinus. (On Diseases of the Eye, 3.) Rowley describes it as a moveable tumour in the margin of the eyelids. Aëtius recommends us to open the tumour with a scalpel, and apply to it escharotics, such as burnt copper, chalcitis, and red arsenic. By Haly Abbas it is called grando, and the remedy mentioned by our author is recommended by him. Alsaharavius describes it as a gross humour congealed in one of the eyelids. He describes by the name of alsaanac a fatty tumour of the eyelids which we have sometimes met with and extracted. On the chalazion, see Celsus (vii, 7), and Isidorus (Orig. iv, 8.)
On hordeolum. Most of the ancient authors treat of this trifling complaint in much the same terms as our author. Scarpa evidently is mistaken in making the hordeolum and chalazion to be the same complaint. Haly Abbas describes it as being an oblong abscess resembling a grain of barley on the extremity of the eyelid. He recommends general depletion, and nearly the same remedies as our author; also a cataplasm of galbanum. Alsaharavius treats of it in a similar manner. Rhases particularly recommends melted wax as an application to it. He also speaks favorably of the diachylon plaster.
On lice in the eyebrows. Stavesacre is a very ancient remedy for pediculi on all parts of the body. Celsus lays down very minute directions for the constitutional treatment, and recommends a local application containing sandarach, or the red sulphuret of arsenic. Avicenna makes mention of sulphurous baths. Haly Abbas recommends general purging, various stimulant applications, and abstinence from figs. Our author states, in [Section LXXXI of the First Book], that figs engender lice. Alsaharavius directs the eyebrows to be rubbed with sal ammoniac, alum, salts, &c. Jesu Haly recommends purging with hiera, the frequent use of the bath, and applications containing stavesacre, sulphur, alum, nitre, sal ammoniac, vinegar of squills, and the like. Rhases recommends a powder containing quicksilver.
On madarosis, or milphosis, and ptilosis. Aëtius, Actuarius, and Nonnus treat of these diseases in similar terms. The calliblephara are fully described by Galen (sec. loc. iv.) Haly Abbas seems to allude to these complaints in the following sentence: “Palpebrarum autem casus ex humiditate fit acutâ aut alopetia, et quidam fit cum palpebrarum grossite et duritie, ruboreque, et dolore.” His remedies are like our author’s. The same may be said of Alsaharavius.
On trichiasis. Our author’s treatment is mostly imitated from Galen. We shall treat more fully of the disease in the [Sixth Book]. Scarpa places no confidence in the operation of plucking out the hair, and yet it is favorably spoken of by most of the Greek and Arabian authorities, as, for example, Aëtius, Avicenna, Alsaharavius, and Haly Abbas; and also by Rowley, and other modern oculists. Haly, like our author, directs us to touch the part from which the hair has been plucked with the blood of a frog, or of a dog’s tick, or with the milk of a fig, or the gall of a hedgehog. Alsaharavius makes mention of the same remedies, and also of the mode of treating it by agglutinants. According to Actuarius, the disease consists in certain of the ciliary hairs being turned inwards and hurting the eyeball. (ii, 7.)
On encanthis and rhyas. Scarpa removes the encanthis by a surgical operation; but, from our own experience of the effect of septic medicines, such as arsenic, in similar complaints, we cannot doubt the propriety of the ancient practice in certain cases. Galen’s applications contain copperas, misy, sal ammoniac, and the like. Those of Aëtius are nearly the same. He remarks that seamen are particularly liable to the complaint. Haly Abbas recommends general evacuation and escharotic applications.
On ulcers. In the description of the ulcers of the eye our author follows Aëtius. He, however, evidently was much indebted to Galen (sec. loc. iv.) The Arabians copy from Galen, describing like him seven varieties of ulcer, which they treat upon general principles. See, in particular, Haly Abbas (Pract. v, 41.) Opium is one of his medicinal articles. Ceruse, starch, gum arabic, albumen, &c. also occur. See also Jesu Haly (ii, 50,) and Rhases (Cont. ii.) Celsus recommends various compound applications for ulcers of the eye, which he treats of very minutely.
The collyria mentioned in this section will be found described in the [Seventh Book] of this work.