The American encyclopedia and dictionary of ophthalmology Edited by Casey A Wood, assisted by a large staff of collaborators . agnosis of complete aniridia had been made. Total aniridia may occur in one eye simultaneously with a large iriscoloboma of the other eye. The very large, apparently black, pupil on close inspection gives agrayish reflex. The edge of the lens can be clearly distinguished. Asa rule the ciliary processes are not visible, due either to poor develop-ment or to the fact that they are pulled backwards. The ciliary musclemay show perfect development, and accommodation as a co


The American encyclopedia and dictionary of ophthalmology Edited by Casey A Wood, assisted by a large staff of collaborators . agnosis of complete aniridia had been made. Total aniridia may occur in one eye simultaneously with a large iriscoloboma of the other eye. The very large, apparently black, pupil on close inspection gives agrayish reflex. The edge of the lens can be clearly distinguished. Asa rule the ciliary processes are not visible, due either to poor develop-ment or to the fact that they are pulled backwards. The ciliary musclemay show perfect development, and accommodation as a consequencebe up to the normal. The anterior chamber may be normal, or abnor-mally deep. Less frequently it is shallower than normal. Acuity of 484 ANIRIDIA vision is generally much reduced. There is, as is obvious, a strongaversion to bright light. Complications are frequent accompaniments;among them may be mentioned anterior and posterior polar cataract,total cataract, dislocation of the lens, atrophic choroidal spots, vit-reous opacities, and detached retina, the latter three conditions ofless frequency than the Aniridia Section through Cornea and remains of Iris. The cornea may show anomalies of shape and transparency. It isimpossible to say whether any cloudiness of the cornea is congenitalor acquired. Often nystagmus and, less frequently, strabismus occuras a complication. Dislocation of the lens, which is usually upwards,may be present at birth or occur subsequently. The fibres of the sus-pensory ligament are usually intact, but may be missing wholly or inpart. They may be overlooked as it is difficult to distinguish them un-less thickened.


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectophthalmology, bookye