Physiology of the Eye

Organization of Capillaries in the Primate Conjunctiva

“…The cornea obtains oxygen theoretically from 4 sources: the aqueous humour, the capillaries at the limbus, the capillaries in the tarsal conjunc tiva when the lids are closed and oxygen dis solved in the layer of tear film on the epithe lial surface [5], Oxygen in the air is considered to be the chief source of oxygen for corneal respiratory needs. When the lids are closed during sleep, however, the oxygen from the air is shut off and the cornea is still able to maintain transparency, therefore the tarsal capillary source must be very efficient to cope with the oxygen demand of the cornea during sleep.…”

OPERANT MEASUREMENT OF SUBJECTIVE VISUAL ACUITY IN NON‐VERBAL CHILDREN1

“…Hence, Adler concluded that the subjective measurement of visual acuity was of little value in children less than 7 to 8 yr of age, or for "ignorant" adults. Adler (1950) also held the opinion that when an individual was required to respond to a Snellen chart, various complex behaviors were necessary: "the power of attention, willingness and ability to read, motivation and cooperation." He further stated that there can be little doubt that failure to measure accurately most children's acuity is due to "their lack of cooperation and their low level of intellectual functioning."…”

Method for the Preservation and Sterilization of Fresh Donor Material for Full-Thickness Keratoplasty by Framycetin

“…The spectrum of this antibiotic included all the above bacteria, with the important addition of many strains of Pseudomonas aeruginosa, which, although a rare contaminant of donors, is the most significant (Bertoye and Courtieu, 1954;MassenatDeroche, 1954;Ainslie and Henderson, 1958 (Ainslie and Cairns, 1960;Rycroft, 1955;1962) "When framycetin sulphate was introduced several years ago the only preparation available was an ointment for dermatological use. However, this antibiotic had several properties which led us to examine it with a view to extending its use.…”