Tuhina (F/17) came for eye examination, with complaint of blurry far vision with existing glasses of 3+years. Glasses are worn further away, hanging on lower nose.
Vision without glasses
R: 6/60
L: 6/30-
Vision with existing glasses (lenses being refitted to current frame due to broken frame previously)
R: -2.25/-0.75×160 (6/15-)
L: -2.50/-0.50×160 (6/7.5-, 6/6-)
Examination shows:
R: -3.00/-1.25×10 (6/6-) (+1.00 blur lens test 6/12-) [R: right dominant eye]
L: -2.00/-1.00×170 (6/6) (+1.00 blur lens test 6/12-)
Near: L>R
Retinoscopy
R: -2.50/-1.25×10 (6/7.5-)
L: -2.00/-1.00×170 (6/6)
Other assessments show:
Examination of Eye Alignment/Vergence (Cover Test)
NMD @ Distance
small XP, fast recovery @ 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
Near: 0 – 2 XP (blue part)
+1.00 Near: 2 – 4 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
+1.50
(normal value: +1.50 to +2.50)
PRA (Accommodation analysis – ability to stimulate accommodation) by minus lens
-2.25
(normal value: -1.37 to -3.37)
MEM (Accommodation lag – to measure accommodation response seeing near target)
R: +0.25
L: +0.75
(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: 14 cycle per minit(cpm), difficult with plus lens (1st lens)
R: 8 cycle per minit(cpm), difficult with minus lens(2nd lens)
L: 13 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)
NPC (Convergence – ability of eye to maintain a single clear near image) by RAF rule
8/10cm, 8/10cm, 8/10cm, 8/10cm
(normal value: Break/Recovery in less than 10cm or to the nose, TTN)
Tuhina has some increment of astigmatism in both eyes. Her glasses are not seated on nose properly after a change in her frame.. probably due to adjustment/fitting issue. Improper wear of glasses may cause unnecessary stress on our eye systems.
Tuhina will be leaving soon, and she would like to wear contact lens to college next year. Her eye alignment is good and we can fit her with contact lenses. We will prescribe toric lens that covers astigmatism as well. For concentrated tasks, astigmatism correction is required for clear, comfortable vision.
So sweet of Tuhina & sis Muhina in telling me that they will come visit me 2years later. Awww, aunty wishes both of you the best & enjoy your studies yo!❤️❤️
Muhina’s story will be updated in a separate post.