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ERP Week 3

Screening for Visual Acuity

QuestionAnswer
Measuring the clients ability to focus their vision is called Accommodation or Visual Acuity
Visual acuity is commonly performed using a: Snellen Eye Chart
The Snellen 'E' eye chart is used to test; The vision of children and non-reading adults
Snellen eye charts use block letters of Decreasing size or familiar shapes of decresing size
Along each line of Snellen eye chart block let set there is; A fraction 20/20
The Snellen fraction represents; The clients visual acuity
20/20 on a Snellen eye chart means At 20ft you can see clearly what normal eyes see at 20ft
20/30 on a Snellen eye chart means At 20 ft you can see what normal eyes see clearly at 30
Measuring visual Acuity; The client should be Standing; 20ft from the Snellen chart
Measuring visual Acuity; The MA should hold a piece of paper; Under the line of block letters to be read
Measuring visual Acuity; Ask the client to use both eyes and; Say the block letters starting at the top of the chart from 'L-->R' until a mistake is made
Measuring visual Acuity; You should document the smallest line of letters; The client is able to read or identify
Measuring visual Acuity; Ask the client to cover one eye with an occluder and; Say the clock letters starting at the top of the chart from 'R-->L' until a mistake is made
Measuring visual Acuity; Ask the client to cover the opposit eye with an occluder and Say the block letters starting at the top of the chart from 'L-->R' until a mistake is made
Measuring visual Acuity; Should be performed with and without The client wearing their glasses or contacts
Measuring visual Acuity; Document the fraction associated with each letter by using the abbreviations; OU - Both eye OD - Right eye OS - Left eye
Created by: adrouillard