En. Nazri (M/47) datang untuk pemeriksaan mata, mengadu kabur tengok hp.. beliau pakai spek masa bawa motor besar & keluar rumah saja.. penglihatan komputer masih okay & komputer letak jauh di meja.. tengok hp memang payah.. kena ambil jauh2 baru selesa sikit.. ataupun kena buka spek tengok hp, yang ini pun masih kabur juga & adakalanya sakit kepala.
Vision without glasses
R: 6/15-
L: 6/12-
Vision with existing glasses of 5years
R: -0.75/-0.75×40 (6/6)
L: -0.50/-0.75×140 (6/6)
Examination shows: (Delay Fogging)
R: -0.75/-0.50×40 (6/6) [+1.00 blur lens test: 6/12-] (R: right dominant eye) R>L
L: -0.50/-0.50×140 (6/6) [+1.00 blur lens test: 6/12-]
Add: +1.50 (N5@40cm)
Other assessments show:
Examination of Eye Alignment/Vergence (Cover Test, CT)
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
Near: 2 – 4 XP (blue part)
(normal value: 0-1 EP (yellow part) or 0-3 XP (blue part) @Distance; and 0-6 XP (blue part) @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
+0.75
(normal value: +1.50 to +2.50)
PRA (Accommodation analysis – ability to stimulate accommodation) by minus lens
PL
(normal value: -1.37 to -3.37)
NPC (Convergence – ability of eye to maintain a single clear near image) by RAF rule
14/25cm, 16/28cm, 20/30cm, 21/31cm, 22/34cm
(normal value: Break/Recovery in less than 10cm or to the nose, TTN)
Fusional Reserves (Convergent/Divergent reserve stamina) by Prism Bar
Near, Base-Out/Convergent, PFV: x/20/16
Near, Base-In/Divergent, NFV: x/20/16
Distance, Base-In/Divergent, NFV: x/10/6
Distance, Base-Out/Convergent, PFV: x/12/8
(normal value: Blur/Break/Recovery)
Near, PFV: 10-28/7-21
Near, NFV: 7-19/5-15
Distance, PFV: 4-18/5-9
Distance, NFV: 4-10/2-6
[Scheiman et al – Adult Data]
Vergence Facility – ability to make rapid repetitive vergence changes (by Prism Flipper of 12Base Out & 3Base In)
Near: 0 cpm (double with Base-In)
Distance: 5 cpm (double with Base-Out at end of testing)
(normal value: 1 cycle = 2 times clearing target
Distance: 12-18 cpm
Near: 12-18 cpm)
Interpupillary distance, IPD: 7.1cm
# Near tests are all done with Add
En. Nazri nak pakai contact lens untuk tengok jauh & dekat/multifocal contact lens. Tapi, penglihatan dengan contact lens tak akan sejelas cermin mata, sebab multifocal contact lens tak ada cover rabun silau. Kalau nak juga multifocal contact lens yang cover silau, ada.. tapi kena custom make.
So, kita balik pada tujuan nak pakai contact lens ni, kalau setakat nak pakai pergi event/function, multifocal contact lens sudah memadai untuk kita tengok hp dalam masa kita bergerak sana sini & tengok muka pretty girls & handsome boys tak jadi masalah. Taklah pergi function.. kita nak tengok hp, kita panjangkan tangan ke depan untuk tengok hp.. ini tak elegan pulak hehe.. rahsia umur terbongkar amboi
Kalau kerja memang hadap komputer, rabun silau perlu dibetulkan.. supaya mata selesa & senang lenang.. mata tak kacau, apa projek pun kita on saja! Tambah kopi! Fuiyooo.. laju macam roket!