EFFECTS OF RADIANT ENERGY ON THE EYE. 053 



(48 hrs.); shows leucocytic infiltration of cornea. Corpuscles slightly 

 affected in outermost layers. Endothelium normal. Lens epithe- 

 lium normal. Iris normal. Serum in anterior chamber. 



Experiment 47. Exposed 16 minutes. Result same as in previous 

 experiment. 



MAGNETITE ARC. CROWN GLASS SCREEN (295 Mm)- 



Experiment 48. Distance 20 cm. Exposed 20 minutes. Slight 

 conjunctivitis. Cornea clear, not stippled, epithelium intact. 



Experiment 49. Distance 20 cm. Exposed 40 minutes. Well 

 marked conjunctivitis with edema and slight purulent discharge. 

 Cornea clear. Reflex impaired, but epithelium intact — does not 

 stain. 



Experiment .50. Water cell. Distance 14 cm. Exposed 22 min- 

 utes. Moderate conjunctivitis. Corneal epithelium intact. Micro- 

 scopic examination (48 hrs.). Cornea, iris, and lens epithelium 

 normal. No serum in anterior chamber. 



MAGNETITE ARC. QUARTZ SINGLE LENS SYSTEM. WATER CELL. 



Experiment 51. Albino. Crown glass screen (295)Uju). Exposed 

 20 minutes. Immediate enucleation. Microscopic examination shows 

 cornea, iris, and lens epithelium normal. 



Experiment 52. Pigmented eye. Crown glass screen (295 ixfx). 

 Exposed 6 minutes. Moderate conjunctivitis. Slight haze of cornea 

 without loss of epithelium. Microscopic examination (4 days) : 

 Corneal stroma shows slight leucocytic infiltration. Corpuscles and 

 endothelium normal. Lens epithelium normal. 



Experiment 53. (PI. 4, Fig. 12). Albino. Crown glass screen 

 (295 iJLn). Exposed 12 minutes. Purulent conjunctivitis. Cornea 

 hazy, shows loss of epithelium. Iris congested and hemorrhagic. 

 Microscopic examination (48 hrs.) : Corneal corpuscles show marked 

 abiotic changes. Endothelium absent. Iris shows interstitial hem- 

 orrhages. Lens epithelium shows moderate abiotic changes. Retina 

 shows burned spot. 



Experiment 54. (PI. 3, Fig. 9). Albino. Crown glass screen 

 (295 M/x). Exposed 20 minutes. Marked reaction with loss of corneal 

 epithelium. Microscopic examination (2 days): Most of the corneal 

 corpuscles destroyed in central area, endothelium absent. ^Marked 

 abiotic changes in lens epithelium. Iris shows interstitial hemorrhages. 



