The Characteristics and the Clinical Courses of Best Disease in Korean Patients
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3341/jkos.2021.62.3.337
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Ji Hyun LEE
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Young Ju LEW
			        		
			        		;
		        		
		        		
		        		
			        		Jae Hui KIM
			        		
			        		;
		        		
		        		
		        		
			        		Jong Woo KIM
			        		
			        		;
		        		
		        		
		        		
			        		Chul Gu KIM
			        		
			        		;
		        		
		        		
		        		
			        		Dong Won LEE
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Kim’s Eye Hospital, Seoul, Korea
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
            
            
            	- From:Journal of the Korean Ophthalmological Society
	            		
	            		 2021;62(3):337-344
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:Korean
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Purpose:To evaluate the clinical characteristics and courses of Best disease in Korean patients. 
				        	
				        
				        	Methods:We retrospectively reviewed the medical records of patients with Best disease followed-up for more than 12 months after diagnosis. The disease stage and best-corrected visual acuity (BCVA) at diagnosis, and stage progression during follow-up, were evaluated. The BCVA at diagnosis was compared to that at the final follow-up. The BCVA changes were compared between those evidencing stage progression and not. 
				        	
				        
				        	Results:A total of 16 patients (32 eyes) were enrolled. The mean follow-up period was 52.1 ± 31.8 months. At diagnosis, three eyes had stage 1, nine stage 2, seven stage 3, 11 stage 4, and two stage 5 disease. During follow-up, stage progression was observed in nine eyes (28.1%). The mean logarithm of the minimal angle of resolution (logMAR) BCVA significantly worsened from 0.19 ± 0.19 at baseline to 0.30 ± 0.27 at the final follow-up (p = 0.004). In six eyes (18.8%), a deterioration of logMAR 0.2 or greater was noted. The extent of deterioration was greater in the nine eyes (0.25 ± 0.26) exhibiting stage progression than in the 24 eyes (0.05 ± 0.08) lacking such progression (p = 0.001). 
				        	
				        
				        	Conclusions:The visual acuity of Best disease patients was relatively good at diagnosis. However, stage progression and visual deterioration were noted in some patients. Stage progression was associated with a poor visual prognosis.