photosensitivityn.

1916 Science 28 Jan. 148/1 The curve of photosensitivity thus obtained shows a rapid rise during the first days of larval life.

1939 Jrnl. Inst. Electr. Engineers 84 473/1 In the normal Emitron the photo-sensitivity is limited to about 12 μA/lumen.

1947 New Biol. 3 93 Many other urodeles, i.e., tailed Amphibia, retain their photosensitivity and continue to move away from light after their eyes have been removed.

1970 R. A. Maier & B. M. Maier Compar. Animal Behavior xvii. 365 Photo~sensitivity seems to have evolved from a general sensitivity to chemical stimulation.

2003 Isis 94 533/2 Cyanotype..contact printing process was discovered by Sir John Herschel in 1842. Its standard negative form is based on the photosensitivity of potassium ferricyanide and ammonium ferric citrate.

1938 Lancet 2 Apr. 773/1 Attempts were made to reveal photosensitivity by exposing the animals..to the light of a mercury-vapour lamp.

1939 S. Epstein in Jrnl. Investigative Dermatol. 2 45 These experiments demonstrate a true allergic type of photosensitivity (photoallergy).

1961 Lancet 26 Aug. 450/2 His clinical photosensitivity showed fluctuations of intensity which corresponded with quantitative changes in his erythrocyte and fæcal porphyrins.

1981 Neurology 31 1542 Apomorphine, a dopamine receptor agonist, blocked epileptic photosensitivity in patients with primary corticoreticular epilepsy.

1992 ENT News May 10/1 One of the side effects of this treatment was that the patients developed generalised photosensitivity and therefore had to wear suitable clothing when going outside.

2001 N. Jones Rough Guide Trav. Health i. 80 Sol…For photosensitivity reactions, and herpes triggered by excessive sun exposure.

2005 Ophthalmology 112 349 Overall, our cohort of LCA [= Leber congenital amaurosis] carriers did not describe significant subjective visual difficulties, including nyctalopia and/or photosensitivity.