Mr Chow CH (M/45) came with complaint of blurry near vision (phone & laptop) with existing glasses.. removing glasses to see near is blurry too. He had cataract surgery in left eye 20years ago.. he remembered being told about having amblyopia in this eye.
Vision without glasses
R: 6/15+
L: 6/12-
Existing glasses 5-6years
R: -1.50 (6/7.5-) slow
L: +1.00/-2.00×170 (6/6)
Examination shows:
R: -1.00 (6/6 slow) [+1.00 blur test: 6/7.5] [R: right dominant eye]
L: +0.75/-1.50×170 (6/6) [+1.00 blur test: 6/7.5-]
Add: +1.50
Other assessments show:
Random Dot 3S
12.5″
Cover Test
Distance: NMD
Near: small – moderate XP, fast – moderate recovery
Howell Card (6BD on OD)
Distance: 0
Near: 4 -> 6 -> 8 -> 10 -> 12 XP
-1.00 Near: 8 XP
NRA
+1.25
PRA
-0.25
NPC (RAF rule)
OS deviates @14cm x6
AA (RAF rule)
R: 46yo, 46yo, 46yo (N12)
L: 46yo, 46yo, 46yo (N8)
MEM
R: +0.50
L: +0.50
Fusional Reserves (Prism Bar)
Near, PFV: 10/12/1
Near, NFV: 8/16/14
Distance, NFV: 6/12/6
Distance, PFV: x/14/8
Vergence Facility (Prism Flipper 12BO/3BI)
Near: 0 cpm (double BO)
Distance: 0 cpm (double BO)
Interpupillary distance, IPD = 7.3cm
All near tests are done with Add.
Fluorescein
R: -ve staining
L: -ve staining
Slit Lamp
R: mild cataract
L: vy2 mild PCO posteriorly
