Lucius (M/17) came for eye examination, vision with existing glasses of 2years made with us, is fine seeing far & near. No headache is reported. He wants to change a new pair of glasses.. and lens coating has peeled off.
Vision without glasses
R: 6/60
L: 6/120
Vision with existing glasses
R: -4.00/-0.75×175 (6/6-)
L: -4.00/-0.50×180 (6/6-)
Examination shows:
R: -4.00/-0.75×175 (6/6) [+1.00 blur lens test: 6/12+] [R: right dominant eye] R>L
L: -3.75/-0.75×180 (6/6) [+1.00 blur lens test: 6/9-]
Add is not favoured (R>L) (adding +0.25 in left eye, L>R)
Other assessments show:
Cover Test, CT
Distance: NMD @Distance
Near: small XP, fast recovery (XP movement in LE > RE)
Howell Card (6BD on OD)
Distance: 0 – 2 XP
Near: 10 XP
+1.00 Near: 14 XP
-1.00 Near: 4 – 6 XP
NRA (Accommodation analysis – ability to relax accommodation) by plus lens
+1.75
(normal value: +1.50 to +2.50)
PRA (Accommodation analysis – ability to stimulate accommodation) by minus lens
-0.25
(normal value: -1.37 to -3.37)
NPC (RAF rule)
12/26cm, 12/26cm, 12/26cm, 12/26cm, 12/26cm
NPC (RAF rule) with Add +0.50 OU
12/22cm, 12/22cm, 12/22cm
AA (RAF rule)
R: 25 YO, 18 YO, 18 YO (blurry @end of RAF rule, only comes into focus starting @22cm, 18cm, 16cm)
L: 18 YO, 18 YO, 18 YO (blurry @end of RAF rule, only comes into focus starting @22cm)
Accommodation Facility (+/- 2.00)
BE: 10 cycle per minit(cpm), difficult minus lens
R: 13 cycle per minit(cpm), difficult minus lens (BE see better than with RE)
L: 13 cycle per minit(cpm), difficult minus lens (BE see better than with LE)
MEM
R: +0.75
L: +0.75
Fusional Reserves (Prism Bar)
Near, PFV: x/10/4
Near, NFV: 12/20/18
Distance, PFV: 20/x/x
Distance, NFV: x/12/8
Vergence Facility (Prism Flipper 12BO & 3BI)
Near: 12 cpm
Distance: 10 cpm
Interpupillary distance, IPD = 6.3cm
We asked Lucius whether or not his near vision will be blurry sometimes, he said that he sometimes sees blurry reading books & the print moves and there seems to be another row of shadow.. like on top.. since 3-4years ago. He will blink2 his eyes, and the print will be clear. He also tends to have tired eyes with near work.
Fusional Reserves (Convergent/Divergent reserve stamina) by Prism Bar (with Add +0.50 OU)
Near, Base-Out/Convergent, PFV: 6/12/4
Near, Base-In/Divergent, NFV: 14/30/25
Fusional Reserves (Convergent/Divergent reserve stamina) by Prism Bar (with Add +0.50 + 2BI OU)
Near, Base-Out/Convergent, PFV: 6/8/-1
Fusional Reserves (Convergent/Divergent reserve stamina) by Prism Bar (with 1BI OU)
Near, Base-Out/Convergent, PFV: 6/12/4
Fusional Reserves (Convergent/Divergent reserve stamina) by Prism Bar (with 2BI OU)
Near, Base-Out/Convergent, PFV: 12/14/8
Prescribe for near
R: -4.00/-0.75×175 2BI
L: -3.75/-0.75×180 2BI
