Department of Ophthalmology, University of Kentucky, Lexington, USA.
Ir J Med Sci. 2013 Jun;182(2):301-5. doi: 10.1007/s11845-012-0873-y. Epub 2012 Dec 21.
The Swedish ophthalmologist and self-taught mathematician Allvar Gullstrand (1862-1930) invented the slit lamp to illuminate the anterior of the eye. With its rectangular beam of very bright light, he studied the structure of the cornea and the function of the lens. His dioptric investigations showed that, as well as the extracapsular mechanism described by Helmholtz, changes in the substance of the lens, that he termed intracapsular, also contribute to accommodation. However, his invention has been appropriated by clinical ophthalmologists and is now routinely used in examination of the eye.
瑞典眼科医生和自学成才的数学家 Allvar Gullstrand（1862-1930）发明了裂隙灯来照亮眼睛的前部。他用非常明亮的矩形光束研究了角膜的结构和晶状体的功能。他的屈光度研究表明，除了亥姆霍兹描述的囊外机制外，晶状体物质的变化，他称之为囊内变化，也有助于调节。然而，他的发明被临床眼科医生所采用，现在已常规用于眼部检查。
