Recurrent Ophthalmia in Solipeds. Moonblindness . 415 



to the seventh day it precipitates and leaves the iris and pupil 

 open to inspection. The pupil if not already open, may be par- 

 tially dilated with atropia and then discloses the interior of the 

 eye of a dark green, or sometimes with much exudate on the 

 choroid, of a more yellowish green. This greenish discoloration 

 appears to depend on opacity of the vitreous, on an exudate 

 between the choroid and retina or on some opacity of the cornea 

 and aqueous. At the same time under a good light some opacity 

 of the lens or its capsule may be detected, or, with direct illum- 

 ination, of the vitreous as well. 



The tension and hardness of the bulb is materially increased in 

 some cases but not at all perceptibly in others. 



From the seventh to the tenth day the acute inflammation sub- 

 sides, the lids and pupils dilate, and the deposit in the anterior 

 chamber is rapidly reabsorbed. It may first assume a dull 

 brownish green or brownish tint. Meanwhile the opacity of the 

 cornea commences to clear up, and any redness or congestion of 

 its margin to diminish or disappear. 



With this disappearance of opacities in the cornea, lens and 

 tumors, all the symptoms of congestion subside and by the tenth 

 or fifteenth day from the commencement of the attack the eye 

 may have become approximated to its normal condition. 



The characteristic of the disease, however, is its tendency to 

 return again and again until the eye is destroyed. From five to 

 seven attacks usually result in blindness, and then the second eye 

 is likely to have a similar experience until both are useless. In 

 some instances the eye which is first attacked may recover and 

 remain well, while the second to suffer is rapidly ruined by a suc- 

 ■cession of severe attacks. The intervals between the attacks may 

 be thirty, forty or sixty days and upward according to the state 

 of the health, the condition, the food, the regimen, the exposure, 

 and perhaps of other accessory causes. 



Reynal claims that some eyes which have retained their normal 

 function after one of two attacks will gradually lose the power 

 of vision without any new appearance of inflammation. In other 

 cases an eye which has been clear and transparent becomes sud- 

 denly filled up with an inflammatory exudation in the anterior 

 chamber which obscures the iris and lens and in a few days 

 vision is permanently lost, yet without conjunctivitis or apparent 

 suffering. 



