ACCOMMODATION. 113 



Aphakia," The present case, however, differs from those re- 

 ported by Forster, in the fact that the range of accommoda- 

 tion was i^g, larger than the maximum of any of his cases, 

 and, from the very important fact that, whenever, in any of 

 his cases, vision, both for the far and near, was taken, differ- 

 ent glasses were used. In this case, the same glasses were 

 used, worn in the same position, for all distances, from in- 

 finity up to five inches from the eye. So, too, in Woinow's 1 

 series of cases, the range of accommodation was taken only 

 for the near, and amounted, on the average, to -g^. 



" The only case which I know of that bears a close resem- 

 blance to the one above stated was reported by Arlt. 2 In 

 this case, a young man, with convex ^r, could read both at 

 six and at twenty-four inches, and could recognize the hands 

 of a steeple-clock, at a distance of more than five hundred 

 paces, with the same glass; but, as neither the size of the 

 print nor that of 'the clock is given, no accurate conclusions 

 can be drawn from the case. 



" The case observed by me would then appear to be the 

 first as it is certainly the most remarkable subjected to the 

 recognized standard test of vision. Here the amount of ac- 

 commodation was equal to that of a normal eye in a young 

 person ; and it would seem impossible that the ability to read 

 the finest print at five inches, even taking into consideration 

 the magnifying power of the glass, could be due to the over- 

 coming of the circles of dispersion, as is claimed by the great 

 majority of physiologists. 



" Fdrster's views and the correctness of his tests have 

 been objected to latterly by the following writers, cited by 

 Woinow ; viz., Donders, Mannhardt, Coert, and Abadie. 8 



" "Woinow, on the other hand, while he thinks that, in the 1 

 normal eye, accommodation is performed solely by the lens, 



1 WOINOW, Das Accommodations - Vermogen bei AphaTcie. Archiv fur Oph- 

 thalmologie, Berlin, 1873, Bd. xix., S. 107, et seq. 



2 ARLT, Die KranTcheiten des Auges, Prag, 1858, Bd. ii., S. 348. 



3 WOINOW, op. cit. Archiv fur Augenheilkunde, Berlin, 1873, Bd. xix., S. 108. 



