Adrian Tan ZH (M/30) came for eye examination, with complaint of slight blurry far vision with existing glasses.. near vision is fine. Spectacles lenses have many scratches.
Unaided Vision
R: 6/120 (with squinting eye: 6/30-)
L: xguess 6/120 (with squinting eye: 6/45-)
Vision with existing glasses of 5 years
R: -9.50/-3.00×180 (6/9-)
L: -9.00/-3.25×5, 1.3BU (6/6-)
Examination shows:
R: -9.50/-2.50×180 (6/7.5) PH 6/7.5
L: -9.00/-2.50×5 (6/6) (+1.00 blur lens test: 6/9+) [L: left dominant eye]
(lowering DC further is xfavoured seeing far2 away, mono or bino)
Other assessments show:
Cover Test
Distance: NMD
Near: small XP, fast recovery
Howell Card (6BD on OS)
Distance: 0 – 1 EP
Near: 2 XP
+1.00 Near: 4 XP
-1.00 Near: 2 XP
+2.00 Near: 4 XP
-2.00 Near: 2 XP
NRA
+3.50
PRA
-1.25 (occlusion monocularly: OD better, OS blurry)
NPC (RAF rule)
8/10cm, 8/10cm, 8/10cm, 8/10cm, 8/10cm, 8/10cm
AA (RAF rule)
R: 25yo, 25yo, 25yo
L: 32yo, 34yo, 36yo
Accommodation Facility (Flipper +/- 1.50)
BE: 17cpm, difficult minus lens
R: 20cpm, difficult plus lens
L: 20cpm, difficult minus lens
MEM
R: PL/+0.25
L: +0.75
Fusional Reserves (Prism Bar)
Near, NFV: 10/18/16
Near, PFV: x/20/18
Distance, NFV: x/8/4
Distance, PFV: x/25/20
Vergence Facility (Prism Flipper of 12Base Out & 3Base In)
Near: 12 cpm (slow BO)
Distance: 7 cpm (slow BI)
Modified
R: -9.50/-2.50×180
L: -9.00/-2.50×5
Add: +0.50
Interpupillary distance, IPD = 6.7cm
