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| Thread ID: 119636 | 2011-08-02 01:29:00 | NZ spectacle shops.... | Question (15792) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1220502 | 2011-08-07 03:28:00 | Thanks, but their closest store is 2 km away. Not enough for such a hassle. | Question (15792) | ||
| 1220503 | 2011-08-25 08:59:00 | Ok got my eyes checked today, had no issues reading the charts with my current glasses. and apparently my prescription has hardly changed However I am at a new optometrist and they seem to use a different notation and i can't figure it out specifically the axis part. On my old (2004) prescription it read like this refraction R -1.75/ -0.50 x 080 VA 6/5 PD 64/61 OMB L -2.00/ -0.50 x 080 VA 6/5 on my new one Right Sphere: -1.50 Cylinder: -0.50 Axis: 97 Left Sphere: -2.00 Cylinder: -0.50 Axis: 75 PD: 64/ Ok so sphere, cylinder and PD i vaguely understand but Axis how do i compare the 2 measurements between the two different exams. I have no problems seeing with my current prescription and don't have any issues with reading signs etc, main reason for the eye test was so SWMBO would get hers tested, $900 for hers (astigmatisms and various other issues) |
Morgenmuffel (187) | ||
| 1220504 | 2011-08-25 10:05:00 | Here in Siem Reap Cambodia I see one place advertising eye test and glasses $15. Had I more time I would have checked that out for a pair of reading glasses to bring home. |
tut (12033) | ||
| 1220505 | 2011-08-25 22:09:00 | On my old (2004) prescription it read like this refraction R -1.75/ -0.50 x 080 VA 6/5 PD 64/61 OMB L -2.00/ -0.50 x 080 VA 6/5 on my new one Right Sphere: -1.50 Cylinder: -0.50 Axis: 97 Left Sphere: -2.00 Cylinder: -0.50 Axis: 75 PD: 64/ Your old script is written in the traditional convention, being: Sphere / Cylinder x Axis The OMB bit on its own is nonsense. If they drew a croshair type symbol beside OMB then it indicates your eyes are not inclined to cross or diverge excessively. Here's old and new compared in the same format: Sphere / Cyl x Axis Old R: -1.75/ -0.50 x 080 New R: -1.50 / -0.50 x 097 Old L: -2.00/ -0.50 x 080 New L: -2.00 / -0.50 x 075 PD 64/61 Analysis: Tiny improvement in R distance vision (less myopia). However, the axis has changed by 17 degrees, which would give a noticable improvement. Difference could potentially be noticed in clarity, fatigue, strain, headache symptoms. (the smaller the cylinder [cyl=astigmatism] the less significant the axis becomes, and the reverse applies, with cyls over 2.00 the axis really is critical to a single degree of change) Left eye - only change is 5 degrees on a measly 0.50 cyl - insignificant, as you were advised. PD should not change in an adult. 64 is fairly typical of a euro male. Smaller figures to females, much larger figures are typical for PI males |
Paul.Cov (425) | ||
| 1220506 | 2011-08-26 00:51:00 | You could get in a bit of bother suggesting that PI males get more PD. They'll have an eye out for you now. |
R2x1 (4628) | ||
| 1220507 | 2011-08-26 02:51:00 | cheers for that Paul | Morgenmuffel (187) | ||
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