YJun (M/16) came with complaint of slight blurry seeing whiteboard as he sits at the last row, near vision is fine. He has a pair of glasses of 4-5years but he did not use it for a long time already.. as he finds his vision is better without glasses.
Vision without glasses
R: 6/6
L: 6/6-
Random Dot 3S (unaided)
20″
Examination shows:
R: +0.25/-0.75×5 (6/6) [+1.00 blur test: 6/9] [R: right dominant eye]
L: +0.25/-0.50×170 (6/6) [+1.00 blur test: 6/12]
Higher DS is xfavoured seeing far away
Other assessments show:
Cover Test
Distance: NMD
Near: small XP, fast recovery
Howell Card (6BD on OD)
Distance: 0
Near: 8 – 10 XP
+1.00 Near: 14 XP
-1.00 Near: 10 XP
+2.00 Near: 16 XP
-2.00 Near: 4 XP
NRA
+0.50 (mono occlusion: OD blurry, OS blurry)
PRA
-0.75 (mono occlusion: OD blurry, OS blurry)
NPC (RAF rule)
8/10cm, 10/12cm, 12/15cm, 14/17cm, 16/20cm, 18/22cm
AA (RAF rule)
R: 25yo, 30yo, 35yo (blur @end of RAF rule, clear @40cm)
L: 25yo, 25yo, 25yo (blur @end of RAF rule, clear @42cm)
NPC (RAF rule) with Add: +0.50
10/12cm, 10/12cm, 10/12cm, 10/12cm
Accommodation Facility (+/- 2.00)
BE: 14 cpm, difficult minus lens
R: 12 cpm, difficulty minus lens
L: 12 cpm, difficult plus lens
MEM
R: +0.75
L: +0.25
Fusional Reserves (Prism Bar)
Near, PFV: x/14/10
Near, NFV: x/18/16
Distance, NFV: x/8/6
Distance, PFV: x/25/18
Vergence Facility (Prism Flipper 12BO/3BI)
Near: 12 cpm
Distance: 15 cpm
We repeated
Fusional Reserves (Prism Bar) with Add +0.50
Near, PFV: x/30/25
Near, NFV: x/16/14
He brought his old glasses
R: PL/-1.25×5
L: -0.50/-0.75×175
Subj Rx
R: +0.25/-0.75×5
L: +0.25/-0.50×170
Add: +0.50
Pt prefers to remove glasses to see near.
Modified
R: +0.25/-0.50×5
L: PL/-0.50×170
Add: +0.50
Vision is better with glasses seeing far & near.
Interpupillary distance, IPD = 6.4cm
We ask YJun if he sometimes sees blurry seeing near, he said his near vision will be blurry if he sees near intensively & he will stop & take a rest.
