Symptom Information: Sort according to HPO 

	Symptom Information	Symptom	Abundance	Frequency	Pubmed	Source	DB Freq
1	(HPO:0000505)	Visual impairment					297 / 7739
2	(HPO:0000608)	Macular degeneration					36 / 7739
3	(HPO:0007663)	Reduced visual acuity					100 / 7739