[Prevention of amblyopia by active production of the macular fixation reflex in infants].

Among 1455 examined babies aged 3 months the authors found a lack of normal fixation reflex in both eyes in 155 and in 52 in one eye only. In these eyes the parents applied 3 times a day an alternate occlusion of eyes or of the master eye only showing the babies interesting toys. After 2 weeks 83 babies showed normalization of fixation and after following 2 weeks of over described occlusion only 8 of them did not reveal a normal fixation reflex.

Erythropoietic effect of ultraviolet radiation in blind rats in comparison with control seeing rats.

In 40 blinded rats erythropoiesis parameters were determined in four groups of 10 animals each and were compared with similar parameters in seeing control rats. Two group of blind rats received ultraviolet radiation 405-289 nm wavelength; 140 000 erg/sec/cm2 daily for 10 minutes during 2 or 4 weeks. Two other groups served as non-irradiated blind controls.