794
Following already published methodology ( Eye 2002 ; 16 ; 567 - 571 ) monocular mean radial degrees ( MRDs ) to the I / 4e isopter on Goldmann perimetry was calculated for the right eye at the time of discovery of a visual field defect and again after not less than 18 months follow - up .
 Disease: visual field defect
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: visual field defect