Tzen (M/25) came for eye examination complaining of sometimes blurry near vision & headache, especially prolonged computer work.
Vision without glasses:
R: 6/6-
L: 6/6-
Examination shows:
R: -0.25 (6/6)
L: -0.25 (6/6)
Relax Add: +0.50
Other assessments show:
Examination of Eye Alignment/Vergence (Cover Test)
NMD @Distance & Near
(normal value: orthophoria/NMD-No Movement Detected or small XP small recovery)
EP = Esophoria is misalignment of the eye, eye is deviated inwards
XP = Exophoria is misalignment of the eye, eye is deviated outwards
NPC (Convergence – ability of eye to maintain a single clear near image) by RAF rule
6cm, 6cm, 6cm
(normal value: less than 7.5cm)
AA (Accommodation/eye stamina – ability of eye to focus & sustain seeing near clearly) by RAF rule
R: 10cm, 10cm, 11cm
L: 10cm, 10cm, 11cm
(normal value: 10cm for a 25year old)
NRA (Accommodation analysis – ability to relax accommodation)
+0.75
(normal value: +1.50 to +2.50)
PRA (Accommodation analysis – ability to stimulate accommodation)
-1.25
(normal value: -1.37 to -3.37)
MEM (to measure Accommodation response seeing near target)
R: +0.25
L: +0.25
(normal value: +0.25 to +0.75)
Facility (Accommodation facility – ability to change focus: far to near or near to far) by Flipper +/- 2.00
R: 0 cycle per minit(cpm)
L: 0 cycle per minit(cpm)
BE: 0 cycle per minit(cpm)
(normal value:
Monocular or R/L: 6cpm to 16cpm
Binocular or BE-both eyes: 4cpm to 14cpm)
From the result, we know that Tzen has Accommodation Infacility:
- Failed accommodation facility in each eye and both eyes as well
- NRA is very low – he cannot relax focusing/accommodation is slightly stuck
- PRA is pretty low – he can hardly stimulate focusing/accommodation
We have advised him to go for cycloplegic refraction at eyes specialist clinic to put eye drop to relax eye muscles but he is not keen for it. Sometimes, excessive near work may cause your eye muscles to be stuck/have spasm, putting eye drop relaxes the eyes muscles, so we will check the eyes again after that to ascertain the issue behind the complaint.
In this era of globalisation, our work & lifestyle require us to face computer extensively, exhausting our eyes. There are a few ways that we can go about this:
1) Manual method – by taking regular break 20-20-20 rule, after 20 minutes of near work, to look at 20 feet away for 20seconds to manually relax our eyes
2) Spectacle lens – instead of our eyes doing all the auto focusing to see near, we let Relax lens to help to do some of the auto focusing, so eyes have lesser workload, hence feel more relaxed especially during prolonged near work
Manual method of taking regular break works for everyone. But, you really do not like the idea of taking a break during near work or in between gaming, you may go for Relax lens. We need to pamper our eyes too 😉
Tzen has gone along the Korean style with metal frame of Tik Tok to pair with Relax Lens of ILT Smart Calibre especially to be used while working.
Glad to know that the glasses are fine, Tzen? We will see him again soon for follow up to assess his Accommodation & should Facility is still failed, we will work on vision therapy to strengthen his ability to change focus.
Thank you Tzen for your trust & support!?