Ms Lai (F/38) came for eye examination, vision with existing reading glasses of 2years is fine. Her right eye is non-seeing eye due to burst blood vessel in the eye from diabetes. Her left seeing eye had cataract surgery 6-7years ago and has surgery recently for glaucoma due to very high eye pressure in which she had terrible headache & nausea & she could not see at the time of the attack. She has strong family history of diabetes.
Vision without glasses
R: –
L: 6/9 slow
Vision with existing reading glasses
R: To balance
L: +0.25/-1.50×10 (6/9+)
Add: +2.75 (N5@40cm)
New Power is same as existing glasses
Other assessments show:
AA (Amplitude Accommodation/Focusing – eye stamina/ability of eye to focus & sustain seeing near clearly) by RAF rule
R: –
L: 42 YO, 42 YO, 42 YO (target is blurry @end of RAF rule, only comes into focus starting @40cm)
(normal value: AA goes according to age; YO=years old)
Facility (Accommodation facility – ability to change focus: far to near or near to far) by Flipper +/- 1.00 (N6 target)
BE: –
R: –
L: 10 cycle per minit(cpm)
(normal value: 1 cycle = 2 words read
Monocular or R/L: 6cpm to 16cpm
Binocular or BE-both eyes: 4cpm to 14cpm)