London's Pulse: Medical Officer of Health reports 1848-1972

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Ealing 1932

[Report of the Medical Officer of Health for Ealing]

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TABLE III. Type of Refractive Error.

Age.Convergent Squint.Divergent Squint.Alternating Squint.Hyper-metropia.Myopia.Hypermetropic Astigmatism.Myopic Astigmatism.Mixed Astigmatism.Emmetropia.Difference between Refractive Error of Eyes.Degree of Amblyopia.
Under IDID2D3D and OverOModerateSevere
Years
25—27—————7——————
37——7—————6—1————
45——4—1———41—————
56——5—1———51——2——
66—16———1—421—2—2
710—16—4—1—65——352
87—1422———5111242
910——7—1—2—72—1433
107——5—2———51—13—4
114——3—1———22——211
126——311——1321——24
133——2—1———2—1——12
76—559314—41561753181620

Moderate Amblyopia = 1 or 2 lines difference.
Severe Amblyopia = over 2 lines difference.
Note.—The discrepancy between the totals in the last three columns and those in the preceding ones at the ages
of 5, 6 and 7 is due to the fact that in these age groups 4, 3 and 1 respectively had not yet learnt to read and could
not be subjectively tested.