History Taking Visual Acuity Yuli Susanti History Taking
- Slides: 17
History Taking & Visual Acuity Yuli Susanti
History Taking 1. 2. 3. 4. 5. 6. Greeting (intonation, condition) Chief complain Information about present illness Past ocular history Medical history Social & Family history
Present illness - Time and manner of onset - Severity - Laterality - Clarification - Documentation
Past Ocular History Why, When, How, Where, by Whom - Use of eyeglasses or contact lenses - Use of medication in the past - Ocular surgery - Ocular trauma - History of amblyopia or ocular patching in childhood
Others v v v Ocular medication General medical and surgical history Systemic medication Allergies (onset, cause) Social History Family History (Ocular, Non ocular disease)
Distance Visual Acuity Testing
Distance Visual Acuity Testing - Snellen chart/projector, alphabet, inverse E, picture - Distance : 20 feet / 6 m - Well-illuminated - Measure each eye one by one
Distance Visual Acuity Testing 1. Distance 6 m, well illuminated chart 2. Measure uncorrected visual acuity 3. Exam the right eye, occlude the left eye 4. Make sure there is no conscious or inadvertent peeking 5. Ask the patient to read the largest optotypes (E), from left to the right, until the patient correctly identifies at least one half of the optotypes on a line 6. Record the measurement as VOD 6/…. . or 20/. . . and record how many letter were missed (Example : VOD 6/12 F -1) 7. Repeat the procedure for the other eye (VOS)
Distance Visual Acuity Testing If the patient is unable to read the Largest Snellen letter, proceed Fingers counting (1 -6 m) If the patient cannot count fingers, proceed Hand Motion (1 m) If the patient cannot detect hand motion, proceed Light Perception (30 -40 cm) if there is LP proceed Light Projection / Light Direction
Finger Counting - If the patient is unable to read the Largest Snellen letter - Start distance 1 m (from the patient) - Ask the patient to count the number of the fingers - Record the distance at which counting fingers is done accurately (until 6 m) example : VOD 1/60 or … distance/60 - Repeat the prosedure for the other eye
HAND MOTION - If the patient cannot count fingers - Ask the patient to mention the direction of your hand (Up and down or Right to left) - Record positive respone as hand motion Example (VOD : 1/300 or HM)
LIGHT PERCEPTION AND PROJECTION - If the patient can’t detect hand motion - Use a pen light to determine whether patient can detect the direction or perception of the light - Record the patient’s response as : LP with projection/direction LP without projection/direction, or NLP (no light perception)
Visual acuity Interpretation : 6/6. . . . 2/60. . . 1/300. . . 1/∞
Pinhole Visual Acuity Testing
Pinhole Visual Acuity Testing To know that the acuity measurement as stuctural or refraction disorder - If visual acuity is less 6/6 - Repeat the prosedure of distance visual acuity testing starting at the last line of the acuity measurement - Ask the patient to look at the distance chart through the pinhole - Record the acuity as : VOD 6/12 PH 6/6
- Normal visual acuity by age
- Visual acuity 6/6
- Landolt
- N notation visual acuity
- Visual acuity and the evolution of signals
- Static visual acuity
- Laras susanti
- Observasi event sampling
- Yuli budiningsih
- Prinsip pokok asuhan kehamilan
- Dr rika susanti
- Lebam mayat
- Dr rika susanti
- Dr rika susanti
- Dr rika susanti
- What does yuli do every sunday morning artinya
- Welcome to.acuity
- Minimum recognizable acuity