1922. No. 4. MIOSIS CONGENITA SEU MICROCORIA FAMILIARIS. 5 



them to be between 1.5 and 2 mm. when one day in 1897 he came in 

 his 60th year for a prescription for his daughter; I proposed an examina- 

 tion of his eyes but he refused; some years later he died). — Ingeborg 

 complains of serious shortsightedness and of daily laadaclws, a pression 

 in and ahorc the eyes with pains in the hack of her head, all of which 

 she has had as long as she can remember. Her pupils are extremely 

 small, the right one ^'3 mm , and the left one ^/2 mm. in diameter (Fig. i); 

 they show a slight excentricity upwards (Fig. i and Fig 3). 



The pupils do not react to light or for convergence. The colour of 

 the iris is mainly diffuse chestnut brown, in some places however greenish 



«^WN*l-^.w*^ 



¥'\<y. I. 



The pupils of Ingeborg B. on September 5th 1897. — This illustration as well as Fig. 2 

 and Fig. 3 are reproductions of pencil sketches by Asta Nørregaard, the artist; these sketches 

 are on a somewhat reduced scale, the horizontal diameter of the two corneae being in 

 reality 11.5 mm. instead of 10 mm. as drawn. But the artist painted the originals of 

 I'l. I, Fig. 4 and Fig. 5 in natural size. 



grey; the radial fibres are close and stretched, and never undulating; cir- 

 cular folds do not exist. The pupils, after instillation of i per cent atropine 

 thrice a day, were dilated to 2.5 mm. (Fig. 2); this diameter was kept for 

 many years by instillation of scopolamine 0.2 per cent every morning; 

 even during this slight mydriasis, no circular contraction grooves were seen 

 in the periphery of the iris. 



The myopia was now ascertained to be — 2.75 in the right eye and 

 40° cyl. — 1-5 — sph. — 1.25 in the left eye with V =--- '^4 in both, while 

 before the atropinisation sph. — 10. o to 12.0 D were required to obtain 

 nearly the same vision [V =^^lr). The normal fundus could then be seen 

 both in erect and inverted image, wich was impossible through the pinhole 

 pupils. The visual fields were good for white and colours (Ole B. Bull's 

 colours — invariable in the peripher}'), for colours however somewhat more 

 narrow before the dilatation of the pupils than after the dilatation. The 

 tension was normal and is — after the lapse of 24 years — still so. 

 Addition of cocaine did not further dilate the pupils, but the palpebral 



