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Visual acuity (VA) was measured by Snellen optotype, and the results were expressed in decimals.
Those presenting limitations for undergoing the exploration or for the interpretation of the results, such as subjects unable to collaborate adequately to complete the ocular explorations, those presenting a refractive error > 5.5 diopters (D) or astigmatism greater than 3 D, those with a visual acuity (VA, Snellen Visual Acuity Scale) of less than 0.7 with a difference of vision greater than one line of the optotype between the AV of both eyes, and those with intraocular pressure (IOP) greater than 21 mmHg or those presenting other conditions, such as strabismus, amblyopia, or the presence of pathology that may cause changes in retinal thickness such as chorioretinal scars, myelin fibers, or papillary druses, were also excluded.
Lambert, and for the Infant Aphakia Treatment Study Group, "Association between occlusion therapy and optotype visual acuity in children using data from the infant aphakia treatment study: a secondary analysis of a randomized clinical trial," JAMA Ophthalmology, vol.
Visual acuity was measured with a Snellen tumbling E chart, with optotype size 20/200 on one side and 20/60 on the other side, at a distance of 20 feet (6 meters).
Optotype wall decoration, PS69.90; Barkley wall–mount storage unit, PS129.90; Lowell industrial floor lamp, PS199.90; three Indus storage boxes, PS45; Edison industrial end table, PS59.90; industrial red metal stool, PS59.90; Edison secretary desk, PS299.
Optotype wall decoration, PS69.90, Barkley wall-mount storage unit, PS129.90, Lowell industrial floor lamp, PS199.90, three Indus storage boxes, PS45, Edison industrial end table, PS59.90, industrial red metal stool, PS59.90, Edison secretary desk, PS299.
Optotype wall decoration, Barkley wall-mount storage unit, Lowell industrial floor lamp, three Indus storage boxes, Edison industrial end table, industrial red metal stool, Edison secretary desk, Edison industrial cabinet in red, all Maisons du Monde
, consists of two printed optotype charts, 97 x 82 cm, with eight lines each showing a different sequence of letters (6 per line).
Optotype acuity and re-operation rate after unilateral cataract surgery during the first 6 months of life with or without IOL implantation.
Once the head completes 3 consecutive cycles of movements, an optotype in the shape of the capital letter "E" is immediately presented to the subject on a computer monitor.
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