Of Medicine, in Eight Books

by Aulus Cornelius Celsus

But as the foregoing disorders do not differ much either in their nature, or method of cure, so these in the eyes, which require manual operations, are both different in their kinds, and require different methods of cure.

Of vesicles in the upper eye-lids.

In the upper eye-lids then it is common for fat and heavy vesicles to rise, which scarcely allow the eye to be raised, and occasion gentle, but constant fluxes of gum in the eyes. And they commonly happen to children. In this case, it is necessary to compress the eye with two fingers, and thus stretching the skin, to cut with the knife in a transverse line, with a very light hand, in such a manner as not to wound the vesicle, and so that it may pass out when a way is made for it; then to catch hold of it with the fingers, and pull it out: for it easily separates. After this the part ought to be anointed over with any of these collyriums, that are used in lippitudes; by which means it is covered with a cicatrix in a very few days. It is more troublesome, when the vesicle is cut: for it discharges its humour, and cannot be laid hold of after, because of its smallness. If that accident should happen, one of the medicines that promotes a digestion, may be laid on.

Of a crithe.

In the eye-lid, likewise, above the lashes, there grows a small tubercle, which from its resemblance to a barley-corn, is, by the Greeks, called crithe[ GU ]. It is contained in a coat, and seldom maturates. Upon this should be applied hot bread, or wax heated now and then, provided the degree of heat be no more, than the part can easily bear: for by this method it is often discussed, sometimes maturated. If pus appear, it ought to be divided by a knife, and the contained humour squeezed out: and to be afterwards treated with the same warmth, and anointed, till it recover a sound state.

Of chalazia.

Other tubercles not unlike this, grow in the eye-lids; but however not of the same form, and also moveable, when they are impelled this way or that by the finger: which because of their resemblance to hail-stones, the Greeks call chalazia[ GV ]. These ought to be cut on the external side, if they be immediately under the skin; on the internal, if they lie below the cartilage; after that, they must be separated by the handle of the knife from the sound parts. And if the wound be on the internal side, it must be anointed at first with mild, and afterwards more acrid medicines; if, on the external, an agglutinating plaister must be applied over it.

Of the unguis.

The unguis, called by the Greeks, pterygium[ GW ], is a small nervous membrane, which arising from the angle of the eye, sometimes reaches to the pupil, and obstructs the sight. It oftener begins from the angle, near the nose, sometimes too from that towards the temples. It is no difficult matter to discuss this, when recent, by the medicines, which lessen cicatrices in the eyes. If it be of long standing, and has acquired some thickness, it ought to be cut out. After an abstinence of one day, the patient must be placed in a seat, either with his face opposite to the physician, or with his back to him, in such a manner, that he may recline his head upon his breast. Some, if the disease be in the left eye, chuse to have him set with his face to the physician; if in the right, in the reclined posture. One eye-lid ought to be opened by an assistant, and the other by the physician. If the physician face him, he must take hold of the lower one; if he be reclined, the upper one. Then the physician is to fix under the extremity of the unguis, a small sharp hook, with its point turned a little inward; and to let go the eye-lid, which is then to be held by an assistant, and taking hold of the hook, he is to lift up the unguis, and pass a needle through, drawing a thread after it; then to lay aside the needle, and take hold of the ends of the thread, and by them raising up the unguis, if it adheres any where to the eye, to separate it by the handle of the knife, till he come to the angle; then alternately sometimes to slacken, sometimes to draw it, that so both its origin and the extremity of the angle may be found. For there is a double danger attends it; either lest some part of the unguis be left, which being ulcerated is hardly ever cured, or lest the caruncle be cut away from the angle; for if the unguis be drawn away with too much force, that also follows, and comes away. If it is torn off, an orifice is opened, through which afterwards a humour always descends, which the Greeks call rhyas[ GX ]. The true termination then of the angle must be found out. When that plainly appears, the knife is to be used, the unguis not being too straight drawn; and then this small membrane is to be cut out in such a manner, that no part of the angle be wounded. Afterwards lint covered with honey must be laid on, and over that a linen cloth, and either spunge, or sordid wool. The following days the eye must be opened daily, lest the eye-lids be agglutinated together by a cicatrix (for that is also a third danger) and lint be put on in the same way: lastly, it must be anointed with a collyrium, that cicatrizes ulcers.