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Table 3 Causes of visual impairment

From: Baseline traits of patients presenting at a low vision clinic in Shanghai, China

Primary diagnoses Age (years) Total no.(%)
0-9 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80+
Congenital cataract 26 8 6 1 2 0 0 0 0 43(14.38)
Degenerative myopia 5 7 4 2 1 6 7 8 1 41(13.71)
JMD 7 9 9 3 0 0 0 0 0 28(9.36)
Retinitis pigmentosa 1 6 7 3 4 6 0 1 0 28(9.36)
Optic atrophy 7 10 2 3 1 3 1 0 0 27(9.03)
Nystagmus 9 9 3 1 1 0 0 0 0 23(7.69)
Glaucoma 7 4 3 1 0 2 1 3 2 23(7.69)
AMD 0 0 0 0 0 2 3 7 9 21(7.02)
Albinism 8 4 3 0 1 0 0 0 0 16(5.35)
Coloboma 5 2 1 0 0 0 0 0 0 8(2.68)
Diabetic retinopathy 0 0 0 0 1 2 4 0 0 7(2.34)
Trauma 0 1 1 0 2 1 1 0 0 6(2.01)
Retinal detachment 0 1 1 2 0 0 0 1 0 5(1.67)
Corneal opacity 1 1 0 0 0 1 0 1 0 4(1.34)
Cone/Rod dystrophy 1 1 0 0 1 1 0 0 0 4(1.34)
Age-related cataract 0 0 0 0 0 0 0 0 2 2(0.67)
Congenital microphthalmia 2 0 0 0 0 0 0 0 0 2(0.67)
Retinopathy of prematurity 0 1 1 0 0 0 0 0 0 2(0.67)
Optic nerve hypoplasia 2 0 0 0 0 0 0 0 0 2(0.67)
Others* 4 1 0 0 0 2 0 0 0 7(2.34)
Total 85 65 41 16 14 26 17 21 14 299(100.00)
  1. Abbreviation: AMD age-related macular degeneration, JMD juvenile macular degeneration.
  2. *Others: Persistent hyperplastic primary vitreous-1, Familial exudative vitreoretinopathy-1, Morning-glory syndrome-1, Spherophakia-1, Retinoblastoma-1, Hypertensive retinopathy-1, Macular hole-1.