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



It is the spasm of accomodation and the headaches which have ne- 

 cessiated the scopolamine apphcation daily for all these years; it has more- 

 over highly improved her eyesight in twilight: on account of the moderate 

 myopia, reading and close work, in spite of the paralysis of accomodation, 

 have been easy for the patient. If she had been emmetropic or hyper- 

 metropic without spasm of accommodation, a small iridectomy upwards 

 would have been the best thing — in order to spare the accommodation. 



b) Axel B., the brother, nine years older, I have seen once only, on 

 October agtl^ ^9^9' when he was more than 52 years old ; his sister Inge- 

 borg had asked him to come. He said that in his youth, when he was 





Fu^. 3. 



The pupils of Ingeborg B. on March 4th 1921, at i 'p. m. after a 0.2 per cent scopolamine 



instillation in each eye at 8 a. in. on the same day and after the application of an atropine 



crystal on the left eye at 10 a. m. 



driving on the high road by twiligt, he had difficulties in steering the horse, 

 and they often ended in the ditch. Now that he lives in town he is mostly 

 indoors, and does not like to go out except in full daylight. He is emme- 

 tropic of both eyes with \' = ^4 and reads without glasses Jäger No. i 

 in 25 cm. (pinhole pupils: minimal circles of diffusion). The iris in both 

 eyes is an even cinnamon brown, with the radial fibres closely stretched 

 and not undulating; no circular groves in th peripher}'. The right pupil 

 is nearly round with ^/4 mm. in diameter; the left pupil forms a horizontal 

 oval ^/'2 X •'/4 mm. in diameter. By two instillations of homatropine i per cent 

 in the course of three hours the right pupil was dilated to 2 X 2.5 mm. and the 

 left pupil to I ^/4 X 2 mm.; he is still emmetropic with V = ^ 5, but to be 

 able to read Jäger No. i at a distance of 30 cm. he must now use -|- 3 o. D 

 — he cannot read without convex glass on account of larger circles of 

 diffusion. The patient, though admitting the advantage of being able to 

 see well also in twilight, preferred to be without mydriatics in order to do 

 his office work and his reading without spectacles as hithertho^ 



' Axel R. died March 6th 1922 of apoj>lexia cerebri. \\ hen the microscopical examina- 

 tion of the iris of both eyes is completed, the result will be given in a new article. 



