[Multicenter prospective study of retinopathy of prematurity--IV. Comparison with the data from University of Miami].
We investigated the records of 360 cases of retinopathy of prematurity (ROP) in 12 institutions in Japan (we treated the severe progressive "plus" disease by coagulation therapy), and compared them with data from University of Miami (Ophthalmology 94: 620-629, 1987), as representative of the natural course of ROP without coagulation therapy in those days. The timing of the first examination and the first positive diagnosis were later at University of Miami than in Japan. The time of maximal severity of the disease and occurrence of regression were also later the University of Miami than in Japan. In Japan, the first examination was performed at 29 weeks of postconceptional age or at 3 weeks after birth. At the University of Miami, the first examination was performed at 32 weeks of postconceptional age. If the severe progressive "plus" disease is to be properly treated by photo-coagulation or cryotherapy, it is essential to commence fundus examination earlier.
Takeuchi
A
A
Eye Clinic, Tenri Hospital, Japan.
Nagata
M
M
Terauchi
H
H
Eguchi
K
K
Oshima
T
T
Majima
A
A
Tsuruoka
Y
Y
Kobayashi
T
T
Yonemoto
H
H
Oomoto
T
T
D005431:Florida; D006785:Hospitals, University; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007564:Japan; D008028:Light Coagulation; D011379:Prognosis; D011446:Prospective Studies; D012178:Retinopathy of Prematurity / Q000175:diagnosis* / Q000601:surgery; D013997:Time Factors