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Thread ID: 125019	2012-06-02 01:59:00	Prescription Glasses	pctek (84)	PC World Chat

Post ID	Timestamp	Content	User
1279110	2012-06-02 08:58:00	I was recommended 39dollarglasses.com and zennioptical.com. $530!!!!! That's about $400 past my budget. Paul: Sphere R: -3.75 L: -2.0 Cylinder R: -1.0 L: -0.5 Axis R: 102 L:5 Don't think PD is required for this question? I can appreciate where you are coming from!. The right lens will be a lot bulkier, with the thickest point being the outside edge, which is -4.75 on the right eye, and -2.00 on the left eye. PD will be important. If it hasn't been measured already, then hold a ruler across your forehead and take a photo. Measure the distance from the right border of the cornea of one eye to the right border of the cornea on the other eye (sometimes referred to as the white-to-white distance). If you repeat the process from left border to left border you should get the same number. Add 3 mm to correct for parallax if the camera was at arms length or closer. Typical figures are nearish to 63. Narrow faces typically less, wide or PI faces typically wider, but if you've come up with a number more than 5mm different, then double check, or get it properly checked. If your nose isn't fairly well centred, again get it checked properly and reported to them as two "half PD" measurements. It might sound crazy, but if you're serious about matching the thicknesses you'll have to ask that they make the LEFT lens thicker to match the right. The laws of physics prevent the right from being thinned down to match the left. Do not let them do a mix of high index on the right with ordinary index on the left (there's typically subtle colour differences to the plastic in the lenses when this is done). Both eyes can use a stock lens if the thicknesses were not a concern, but to match the thicknesses the left will need to be specially worked to be thicker, and will cost a bit more. It's not too common to ask for a thicker lens, so don't be surprised if they question it. It's much more common to use high index on both lenses. This still results in a thickness difference, but less of a difference than with the regular index lenses. Sweetest, but dearest option is both high index, with the left worked to be thicker to match the left. I wouldn't really expect the job to get that degree of care at the price they're offering, so either be prepared for a jump in price, or be prepared to find they've ignored your request.	Paul.Cov (425)
1279111	2012-06-02 09:04:00	What is PD? LL Inter-Pupillary Distance. Basically it's how far apart the eyes are, from the centre of one pupil to the centre of the other. Easier to measure the white-to-white distance when dealing with a brown iris. Care needs to be taken with parallax. The eyes should be looking into the distance when measured, or with a purpose built device. This should never be done at home when ordering progressives, as 0.5mm errors matter with progs!	Paul.Cov (425)
1279112	2012-06-02 09:08:00	The right lens will be a lot bulkier, with the thickest point being the outside edge, which is -4.75 on the right eye, and -2.00 on the left eye. PD will be important. It might sound crazy, but if you're serious about matching the thicknesses you'll have to ask that they make the LEFT lens thicker to match the right. Both eyes can use a stock lens if the thicknesses were not a concern, but to match the thicknesses the left will need to be specially worked to be thicker, and will cost a bit more. It's much more common to use high index on both lenses. This still results in a thickness difference, but less of a difference than with the regular index lenses. I wouldn't really expect the job to get that degree of care at the price they're offering, so either be prepared for a jump in price, or be prepared to find they've ignored your request. PD = 60, it's on the prescription. Well I went with 39dollarglasses.com Chose : Lens Type: Single-Vision (full time wear) Lens Option: Package B - Clear Seiko Super-High Index Lenses (I looked that up - like you said, thinner) Lens Tint: Clear Case: Hard Clamshell SUBTOTAL: $68.95 SALES TAX: $0.00 SHIPPING: $4.95 ORDER TOTAL: $73.90 John Lennon type. That's US$, that's ok, can't even find frames that cheap here. We'll see what happens.... Can't be worse than what I have now anyway.	pctek (84)
1279113	2012-06-02 09:18:00	Sphere R: -3.75 L: -2.0 Cylinder R: -1.0 L: -0.5 Axis R: 102 L:5 Providing you entered the script correctly, then it should be pretty safe. Normal format would be in the following Sphere / Cyl x Axis layout: R -3.75 / -1.00 x 102 L -2.00 / -0.50 x 5 A few days to adapt and you should be ok with them. Expect the adaptation to take longer if your old frame is all bent out of shape or has been sat on (which happens all the time).	Paul.Cov (425)
1279114	2012-06-02 09:18:00	Wow, good luck with them! LL	lakewoodlady (103)
1279115	2012-06-02 10:04:00	Will be interesting.	Cicero (40)
1279116	2012-06-02 11:16:00	You made a great choice :) Report back next week and let us know the results.	Zippity (58)
1279117	2012-06-02 11:22:00	You made a great choice :) Report back next week and let us know the results. Yes, please report back. I'm about to order from Zenni. I too have issues with thick lens' for reading.	WalOne (4202)
1279118	2012-06-02 12:33:00	You made a great choice :) Report back next week and let us know the results. How can it be a great choice b4 we know the outcome?	Cicero (40)
1279119	2012-06-02 12:35:00	Yes, please report back. I'm about to order from Zenni. I too have issues with thick lens' for reading. As the resident optician says,you want thin, you pay.	Cicero (40)
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