Komala (F/16) came for eye examination, with complaint of tired eyes with near work.
Vision without glasses
R: 6/24-, 6/21-
L: 6/9-, 6/7.5-3, 6/6-
Vision with glasses
R: -1.25/-0.50×180 (6/6)
L: PL/-0.50×180 (6/6)
Examination shows:
R: -1.25/-0.50×180 (6/6) (+1.00 blur lens test 6/12-) [R: right dominant eye] L>R
L: +0.25/-0.75×180 (6/6) (+1.00 blur lens test 6/9-)
Add: +0.75
Adding shortsightedness 025 in right eye R>L, but not added
Other assessments show:
Examination of Eye Alignment/Vergence (Cover Test)
NMD @Distance
NMD @Near
(normal value: orthophoria/NMD-No Movement Detected or small XP, fast recovery)
EP = Esophoria is misalignment of the eye, eye is deviated inwards
XP = Exophoria is misalignment of the eye, eye is deviated outwards
Examination of Eye Alignment/Posture (Howell Card) by 6^ Base Down on Right eye
Distance: 0 – 1 EP (yellow part)
Near: 0 – 2 XP (blue part)
+1.00 Near: 0 – 2 XP (blue part)
(normal value: 0-1 EP or 0-3 XP @Distance; and 0-6 XP @Near)
EP = Esophoria is misalignment of the eye, eye is deviated inwards
XP = Exophoria is misalignment of the eye, eye is deviated outwards
NRA (Accommodation analysis – ability to relax accommodation) by plus lens
+2.00
(normal value: +1.50 to +2.50)
PRA (Accommodation analysis – ability to stimulate accommodation) by minus lens
-1.25
(normal value: -1.37 to -3.37)
MEM (Accommodation lag – to measure accommodation response seeing near target)
R: +1.00
L: +0.50
(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
BE: 8 cycle per minit(cpm), difficult with minus lens (2nd lens)
R: 6 cycle per minit(cpm), difficult with minus lens(2nd lens)
L: 8 cycle per minit(cpm), difficult with minus lens(2nd lens)
(normal value: 1 cycle = 2 words read
Monocular or R/L: 6cpm to 16cpm
Binocular or BE-both eyes: 4cpm to 14cpm)
AA (Amplitude Accommodation/Focusing – eye stamina/ability of eye to focus & sustain seeing near clearly) by RAF rule
R: 18 YO, 19 YO, 19 YO
L: 16 YO, 16 YO, 16 YO
(normal value: AA goes according to age; YO=years old)
NPC (Convergence – ability of eye to maintain a single clear near image) by RAF rule
TTN, TTN, TTN
(normal value: Break/Recovery in less than 10cm or to the nose, TTN)
Komala has been studying for examination.. her eye findings on accommodation/focusing shows eye fatigue in right eye.. high lag of MEM, reduced AA, difficult with minus lenses on facility.
There are a few ways to go about this:
- Manual way : so that eyes are well-rested to refresh & recharge stamina to keep up with near visual demand
- taking regular break following 20-20-20 rule
- holding reading material at Harmon distance of an elbow distance
- blink your eye regularly
- adequate lighting
- good posture
- put eye drop to lubricate & refresh
- Spectacle lenses with added plus at near (or we call them relax lenses): to give eyes the little boost power needed to support the continuous near visual demand
- these lenses look like normal lenses only
- by eyes looking through the bottom portion of lens to utilise the boost function (looking straight ahead is for far vision)
- all lens companies have their own designated name for this type of lens
- Contact lenses
- some contact lenses work in giving more comfortable near vision besides correcting your power
- some also act as myopia control for children
You see what works for you as everyone is different in our lifestyle & expectation.
– We will do near NFV when she comes by