There is a bulging of the eyelids, which are glued together. When these are separated, a thick, yellowish matter flows out, the eyes are ulcerated and perforated, the inner surfaces of the eyelids are inflamed, and soon after the contents of the eye protrude as a fleshy mass.
Treatment.—If the eyes are destroyed, the animal should be put into the lethal chamber at once. On the other hand, if there is no ulceration of the eyeball, the eyelids should be separated and the eyes and under-surface of the eyelids constantly irrigated for a quarter of an hour at a time with a warm solution of chinosol. The eyelids must not be allowed to become sealed up, else matter will collect and press on the delicate eyeballs and destroy them. It may be advisable to paint the inside of the eyelids with a 10 per cent. solution of nitrate of silver.
The cornea, or clear, glassy transparent membrane of the front of the eyeball, is frequently involved in the disease just described, or it may become inflamed or ulcerated independent of it.
Inflammation of the cornea, termed Corneitis, keratitis, or external ophthalmia, may result from conjunctivitis, injuries, distemper, diphtheria, or disease of the brain or nerves, sunstroke, etc.
It is very prevalent during the cold winds of spring, and in the majority of instances seems to be contagious. It appears in the form of patchy congestion or inflammation, or at a later stage as ulceration.
One or both eyes may be affected. There is a dread of light, a continual flow of tears, and frequent winking of the eyelids, or almost complete closure of them. The cornea, usually glassy and transparent, becomes clouded by a smoky or milky white film, which has a rounded or irregular form.
Blood-vessels, which in the normal state are absent, appear on the cornea, spreading from a part or all round the circumference towards the centre of the eye. If the inflammation is intense and prolonged, the eyeball perforated, and the contents bulge outwards and become rough, dirty, and leathery in appearance, this condition is generally seen either as the result of an injury, or from improper treatment, or neglect of a simple affection of the eye. In distemper the inflammation usually expends itself on some particular spot or spots in one or both eyes. These spots may appear as mere milky white patches, or they may present an appearance which might lead an ordinary observer to the conclusion that a small piece had been dug out of the eye. They may occur either in the centre of the cornea, or a little above it, or sometimes a little towards the outer angle of the eye.
At the outset the cornea at the particular spot or spots in which the inflammation is localised becomes softened, then bulges, and finally gives way, so that a depression or ulcer is left on the eye. Some time after this ulcer becomes filled up with granulations of a dirty red colour, which afterwards become absorbed, when the cure is complete. Frequently two ulcers appear side by side.
Sometimes, when these ulcerations are improperly treated or neglected, or associated with great debility or anæmia, the white speck remains as a permanent blemish, or in the more serious cases the ulcer perforates the eye, and the contents of which bulge and cause what is termed a staphyloma, from its resemblance to a grape, or the whole eye may become involved in the inflammation and be totally destroyed. In these cases of the destroyed or “lost” eyes, the whole eyeball has a greenish-white appearance, and seems to bulge out from the socket in consequence of the general swelling of the organ. It may give way or become ulcerated, giving rise to a continual discharge, and if not removed causes great pain and exhaustion.
Treatment.—The cat should be kept in the dark, and soothing antiseptics applied to the eye.
The solution recommended for conjunctivitis is also very serviceable here. If the eye affection is due to distemper or any other general disease, it is, of course, necessary to treat this disease, in addition to the local applications to the eye. When ulceration takes place, the following drops are recommended:—
| Eserine salicylate | ½ grain. |
| Distilled water | 2 drachms. |
To be instilled between the eyelids, by means of an eye-dropper, two or three times a day. If, however, there is much vascularity, the following drops are advisable:—
| Atrophine sulphate | ½ grain. |
| Cocaine hydrochloride | 6 grains. |
| Distilled water | 2 drachms. |
After all the acute symptoms have passed away, the indolent granulations may require treatment. A suitable application for this purpose is:—
| Chinosol | 3½ grains. |
| Rose-water | 8 ounces. |
To bathe the eye, by means of allowing the lotion to drop by squeezing a piece of lint saturated with it between the eyelids several times a day.
When the eye is irretrievably lost, and suppuration commences in the interior of the eye, it is necessary to remove the whole eyeball. However, this should not be performed in the case of distemper until after the original disease abates, else removal of one eye will probably end in destruction of the other.
General Remarks on the Eye.—In all affections of the eyes, a careful examination of them should be made by an experienced qualified veterinary surgeon. As, however, in some out-of-the-way places professional aid is difficult, if not impossible, to obtain, a few brief hints as to general treatment should be useful. Many amateurs, in their anxiety to effect a speedy and complete cure, attempt too much, use powerful and irritating drugs (often also in improper proportions), and frequently, with the best intentions in the world, succeed in permanently injuring or even destroying the sight. It is therefore better, in the absence of professional aid, and especially in the earlier stages of inflammation of the eyes, to trust to mild and palliative treatment, and to “give nature a chance.”
In all cases of recent inflammation, soothing applications should be used, such as warm infusion of poppy-heads or camomile flowers, warm milk, cocaine drops, etc. If the inflammation is associated with increased tension of the eyeball, due to an excessive quantity of fluid within it, or is accompanied by deep ulceration, the increased tension should be reduced by means of the eserine drops.
Lotions containing either lead or silver nitrate should not be used in inflammation of the cornea associated with ulceration, as the former is apt to leave a white spot or patch, and the latter a brown or blackish stain.
Last, but by no means least, animals affected with disturbance of the eyes should be kept in the dark, or at any rate away from the fire or from any glaring light, and should be shielded from draughts. The general health should also be looked to, and nourishing food given.
The cat is very fortunately free from many of the skin complaints that affect the dog. Nevertheless, domestication and improper surroundings—the curses of health—demand a few victims now and again, and hence the much-maligned cat is not exempt from this bane.
The diseases are either contagious and conveyable from one cat to another, or simple and not spread by contact.
The contagious skin diseases are due either to an animal parasite (as in mange) or to a vegetable parasite (as in ringworm).
Sarcoptic Mange is a contagious skin disease of the cat due to an animal parasite or mange-mite, termed Sarcoptes minor, var. cati.
It generally attacks ill-fed, neglected, and badly housed cats which are allowed to stray, and is seen chiefly in the autumn. It frequently occurs as an epizöotic, and where no attention is bestowed on the victims it is very fatal.
The adult or mature mite has an almost circular body. When viewed under the microscope, its limbs seem to be under its body. It has eight pairs of legs in the adult and six in the larval stage. In the female the hind legs are provided at the extremities with bristles only; but in the male the central pair of hind legs are provided with suckers, although the outer pair have bristles. It does not excavate a subcutaneous gallery, or burrow, like the mange-mites of other animals, but makes a simple nest, that appears as a minute eminence. The larvæ, nymphæ, and males wander in the midst of the crusts.
It is capable of being transmitted to man, and to the dog, rat, horse, and ox.
Whatever part of the body it first touches, it always goes to the head to do its injurious work. At first small reddish pimples, no larger than a pin’s head or a turnip-seed, appear; these exude a yellowish fluid which dries and forms crusts. The animal scratches, the hair falls off, numerous other scales appear, and become thicker and thicker, until the whole head and ears become encased in a cast of dirty yellowish crusts. The crusts may be absent in young kittens or cats, but slightly adherent scales are seen instead.
After a time the disease spreads to the neck and shoulders, elbows and thighs, or even to the whole body. In kittens or young cats the complaint is more likely to spread to various parts of the body, but in older animals it is generally confined to the head, or head and neck, but may, as in young cats, spread to the other parts or to the whole body, the skin of which, after some time, becomes wrinkled, and gives off a musty odour.
The nostrils and eyes may be blocked up by the thickened crusts, so that the animal can see, or breathe through the nostrils, only with difficulty. The cat hides or strays away, it mopes and seems sad; it becomes emaciated, and indifferent to its surroundings, and finally succumbs to exhaustion or some concurrent disease. It may be associated with ringworm or parasitic ear canker; it is nearly always accompanied by the elliptical tapeworm.
It quickly kills within five or six weeks if no treatment or attention is bestowed on the cat, especially if young; but where it is partially treated, it may linger for months, even years. Cold weather retards its progress, but its energy is renewed in the following spring. It spreads slowly on well-cared-for cats.
Treatment.—The mangy cat should be kept isolated from the healthy animals, and kept away from children. Its basket, bedding, or cage should be boiled, burnt, or thoroughly disinfected. The cat must be carefully dressed with sulphurated lime lotion, which should be applied by means of a piece of lint every day, taking care that the animal is kept warm and well fed.
Follicular Mange is due to a caterpillar-shaped mite—the Demodex or Acarus folliculorum, var. cati—which inhabits the sebaceous follicles of the skin. It is sometimes found in the ears, nose, and head of the cat, but rarely causes severe itchiness. It produces pimples and scabs, which are only of short duration, and seldom occasions trouble. It is frequently associated with sarcoptic mange. The parasite is a quarter smaller than that of the dog.
Treatment.—A lotion composed of sulphurated potash (1 drachm), glycerine (½ oz. to 6 parts of rose-water), applied by means of lint to the affected part once a day, generally suffices to cause its disappearance.
Grey Ringworm, or Tinea tonsurans, is not a common affection of the cat. It is due to a vegetable parasite or mould, termed the Trichophyton felineum, which attacks the hairs, these becoming much altered and broken, and their ends split up and frayed like a brush. There will be noticed circular or oval bald patches, covered with an abundance of scales, which are of a slaty or greyish appearance, and vary according to the colour of the animal. These are seen on the head and limbs and round the eyelids and mouth, but also on other parts of the body. They may run into one another, and form large patches. There may be itchiness and scratching; and in this latter case the crusts may be covered with blood and resemble eczema.
Treatment.—As this disease is conveyable to other cats, to the horse, ox, dog, and children, the affected animal should be isolated and the patches dressed with tincture of perchloride of iron once every third day. (Whole families, and even a whole school, have been known to become affected with ringworm from a cat.)
Yellow Ringworm, or Tinea favosa, or favus, also termed “honeycomb ringworm,” is a commoner disease in the cat than grey ringworm. It is due to a vegetable parasite named Achorion Quinckeanum, which causes at first yellow-coloured crusts that are arranged as cup-shaped masses, which disturb the hairs so that they are shed. These cup-shaped masses resemble a honeycomb in appearance, hence its name. The sulphur-yellow colour after a time changes to a dirty yellow or grey. The patches may be circular or zigzag, and raised above the skin, but the centre is depressed so as to give them a cup-shaped appearance. They vary in size from a pin’s head to a shilling, or larger. They may run into one another, so that the circular form is no longer present. The hairs are stiff and lustreless, and can be easily pulled out. They seem to grow in the centre of the “cups.” After a time the parasite loosens the hair in the follicle, so that it is shed.
It prefers to affect the root of the claws, or the belly, sides of the chest, elbows, head, base of ears, nose, and then spreads all over the body. When it attacks the head, it ensheaths the face and scalp as if clay had been moulded to the parts, so that the eyes become hidden from view.
The cat hides itself, or strays away; it moans or mews, crouches on all fours, and seems utterly miserable. The skin gives off an abominable odour, which resembles mouldy decaying wood in a damp, dark building, or a mousy smell. When the disease is in an advanced stage, the animal dies from exhaustion or some concurrent disease.
It affects old cats as well as young ones, and it is said they contract it from mice and rats, which become affected behind the ears. A week or a fortnight elapses before any symptom appears after infection. Young animals are easily infected, but older ones may resist it. It is transmissible to children and adults, from cat to cat, from man to cat, and from rats and mice to man and cat. It may be associated with mange and parasitic ear canker.
Treatment.—The cat affected with yellow ringworm should be kept away from children and other cats: the affected patches may be painted with the following:—
| Salicylic acid | 1 drachm. |
| Ether | 2 drachms. |
| Spirit of wine | ½ ounce. |
| Glycerine | 4 drachms. |
| Camphor-water | to 3 ounces. |
The term Eczema is given to all those skin eruptions that are characterised by pimples and vesicles followed by scabs and scales, and accompanied with great itchiness.
It is said to be non-contagious, and as far as the cat is concerned this seems to me to be true. On the other hand, in the dog some of the varieties of eczema appear to be spread by contact. It very often runs a chronic course, and frequently recurs.
It generally affects the back, loins, root of tail, and back of the thighs, although any part of the body may be attacked. There is great itchiness, the animal bites or licks itself, the skin becomes red, pimples the size of a head of a millet seed, or even a small pea, appear; these, after a time, burst, and a fluid issues from them and dries, forming scabs. Sometimes the itchiness is so intense as to cause the animal to bite or lick itself until the skin becomes raw and bleeding. In rare instances it produces a kind of mania for licking, which is followed by epileptiform seizures. The hair falls off, leaving bare patches, or it becomes matted together by the gluey discharge and ultimately sheds itself.
In suckling cats, after sudden deprivation of their offspring, an eczematous eruption may appear on the belly, back, and loins, but it is not, as a rule, severe.
The she-cat, especially of the light-coloured variety, when not allowed to breed, is often troubled with a scattered vesicular eruption, which is too difficult to eradicate, and is very liable to recur.
In the castrated male cat it is very common to find a papular and vesicular eruption, which breaks out every spring and autumn.
The causes of eczema in the cat are an unnatural, sedentary life and an abundance of rich food without any compensatory or sufficient exercise in the fresh air. Hot weather, especially when accompanied by wet, predisposes to it, but the affection is seen also in the cold months of the year.
Treatment.—The animal suffering from eczema should be allowed as much exercise of its functions in the open air as possible. Grass or freshly boiled green vegetables, or asparagus, should be put within its reach. Raw meat, uncooked fish with the bones in, or birds with the feathers on, or bullock’s liver are suitable as ordinary food. Rice-pudding, oatmeal, and milk should not be given.
The treatment of the skin is chiefly local. The itchiness must be allayed. This can be obtained by applying precipitated sulphur (2 drachms), zinc oxide (2 drachms), mixed in olive oil (2 ounces) twice a day to the affected parts. If the eruptions are spread over a wide area, the hair should be cut off close to the skin before applying the dressing. For internal treatment a powder composed of calomel (⅛ to ¼ grain) and bicarbonate of sodium (2½ to 5 grains) should be given twice a day. If the disease runs a chronic course, arsenic bromide or iodide (¹⁄₁₀₀ grain in a pilule) should be given three times a day.
The Cat Flea (Pulex serraticeps, var. cati).—The cat flea is identical with, but rather smaller than, that of the dog. It differs from the flea of mankind (Pulex irritans) by having black, blunt spines, seven to nine in number, arranged as the teeth of a comb, at the posterior border of the prothorax and at the inferior border of the head. It is a troublesome pest by irritating and disturbing rest. It prefers to attack the cat when she is suckling.
The flea plays an important part in the evolution of the elliptical tapeworm (Tæma elliptica) by harbouring the intermediary cysticercus, the ingestion of which gives rise to the development of this tapeworm in the intestine.
Treatment.—The cat should have powdered pyrethrum well rubbed into its skin, and then combed out, care to be taken that the combings are burnt. The crevices or corners of the cat’s house should be sprinkled with oil of turpentine, or Sanitas powder.
Fortunately for the cat, it is affected with only one variety of louse, the Cat Louse (Trichodectes subrostratus), which differs from the flea in being wingless and not jumping from but only quitting the cat by accident. It has three-articled antennæ; the head has five sides to it; the body is oval, and in the female notched behind. Its colour is yellowish-brown.
It is not a blood-sucker, but attacks the hair and eats the epidermis, preferably that of the head, neck, back, and limbs, where it causes intense itching. It develops rapidly upon poorly fed, weak, or debilitated animals. There is, besides itchiness, loss of hair, scurfiness, and nits (eggs) in more or less large numbers, which by their presence indicate that the skin has not received sufficient attention. The nits, or eggs, are attached to the hair.
Treatment.—The hair may be sprayed with equal parts of vinegar and concentrated infusion of quassia. Moreover, should the animal lick itself after this dressing is applied, it will act as a tonic. Raw meat, or fish, cod-liver oil, etc., should be given.
A knowledge of how painlessly to destroy a cat’s life is very important to the owner of a cat who is not in reach of a veterinary surgeon—the proper person to undertake this duty under ordinary circumstances.
The most humane method is to place the animal in a small air-tight box, into which has been placed previously two to four drachms of chloroform on a sponge or piece of lint or cotton-wool, which produces at first anæsthesia or painless sleep, and afterwards death from failure of the respiration and heart. It does not cause a suffocative feeling or sensation like coal gas, or spasm, as does prussic acid. Care must be taken not to take the cat out of the box too soon, or else life, not quite extinct, may return.