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Are You Sensitive to Light?

 Are you sensitive to light?   Being sensitive to light is also know as Photophobia. The main symptom of  Light Sensitivity is discomfort to bright lights and if you really need to squint or close your eyes to avoid the lights. You may also develop headaches with photophobia too!

Have you ever wondered why you have eyes that are sensitive to bright lights? Well, people with light colored eyes and people who get migraines and people with cataracts are more likely to notice that their eyes are more sensitive to bright lights and glare. Photophobia is a symptom of another underlying problem, such as a corneal abrasion, uveitis, or a central nervous system disorder such as meningitis. Light sensitivity may also be associated with retinal detachment, contact lens irritations, sunburn and refractive surgery.

Photophobia often accompanies albinism, total color deficiency (seeing in shades of gray), botulism, rabies, mercury poisoning, conjunctivitis, keratitis and iritis. Certain rare diseases, such as the genetic disorder keratosis follicularis spinulosa decalvans (KFSD), are reported to cause photophobia. And some medications may cause light sensitivity as a side effect, including belladonna, furosemide, quinine, tetracycline and doxycycline.

Want to get some sort of relief?  The best treatment for light sensitivity is to treat the underlying cause. In many cases, once the triggering factor is treated, photophobia disappears. If you are taking a medication that causes light sensitivity, talk to the prescribing physician about discontinuing it or replacing it with another drug.If you’re sensitive to light, avoid bright sunlight and other bright lights. Wear hats and sunglasses with UV protection.In an extreme case, you may consider wearing contact lenses that are specially colored to look like your own eyes. Prosthetic contact lenses can reduce the amount of light that enters the eye, so your eyes are more comfortable.

Angie Conn

eye.gif   When I was in Optical sales, I was always told to try to push different kinds of lens options, coating packages, and such so we can get better sales numbers. Yeah, the commission was good, but I did not trying to push something on someone that they totally did not need. I know myself and I do not want to be “sold” something I am wasting my money on.

We always like to learn new things to be better at our job. Those that do poorly are probably not meant to sell. Take a look at the following Optical Sales myths and maybe there could be someway we could do things a little differently.

Myth #1

New technology lenses and frames decrease the need for multiple sales.

Eyeglasses with high-index materials, AR coatings, photochromic and progressive lenses would probably be considered “fully-loaded” by most practitioners and patients. Yet even these premium lenses have limitations. Heavy computer users and most athletes wouldn’t do well with these options. Those who do a lot of continuous distance or close work might do better with single vision lenses. So, while the technology available in both frames and lenses has increased exponentially in the last few years, we still don’t have a “one pair does it all” eyeglass modality. There are still some comprises with most eyeglasses. Certainly one reason we don’t do more multiple dispensing is because we have become mesmerized by, and complacent about, new technology.

Myth #2
Patients only want what the plan covers.

There’s no question third-party payers have taken their toll on our optical sales. However, many doctors have let this become a psychological barrier and excuse in building their businesses. A managed care patient who says, “I only want what the plan covers,” is the equivalent of a cash patient saying, “I have a fixed amount of money to spend on eye wear and I want to maximize every dollar.” Viewed this way, a managed care patients “allowance” can be positioned as a savings for the patient that now allows him or her to purchase additional eye wear. “Mrs. Jones, I have great news for you. Dr. Bill has written you two prescriptions and your insurance covers one of them. That means you’re only responsible for the second pair.”

Contrast this with the emotion many doctors experience when they discover a patient has insurance and is not a cash patient. Before he or she even greets the patient in the exam room the doctor has decided that the patient only wants what the plan covers! This profit-draining, self-fulfilling prophecy rears its head again when the doctor transfers the patient to his optical staff. “Mary, Mr. Specs needs a pair of glasses and he has XYZ insurance.”


My patients can’t afford more than one pair of glasses.

That might be right. Or it might be wrong. But multiple dispensing isn’t about forecasting expenses for your patient. It’s about doing what’s best for your patients regardless of their perceived financial status. You are your patients’ eye doctor – not their financial advisor. And, as the eye doctor you should be recommending whatever eye wear is best for your patients visual needs and lifestyle.


I believe in multiple dispensing, but my staff doesn’t.

Doc, I have news for you. If your staff doesn’t “get it,” it’s your fault. Unquestionably, your staff obtains their sales and dispensing philosophies from you. Your personality and view of multiple dispensing percolates down to your staff through your continuous behavior, no matter how subtle. Pinning poor sales on staff is an excuse that needs to be addressed by you.

Source: Optometric Management, Nov 2005 by Gerber, Gary
Thanks to Dr Gerber for sharing these Myths. They are awesome.

Trouble With Commenting

For some weird reason, I cannot post a comment on my own blog…Pretty strange. I know it is not my computer. I guess it must be word press.

Anyways, here are a few comments that I am posting here….Sorry about the delay in replying back.

Question #1:

mine is:
OD -150DS
OS pl -025 x 005

how come it’s not like the format you mentioned?
the optometrist said my left eye is not nearsighted, but why there’s -025 x 005?



Doctors have different formats on how they write a prescription, but it all means the same thing.
Your doctor is right. You are not nearsighted in your left eye. All it means that you have just a slight bit of astigmatism.

Pl = Plano (no prescription)
-.25 = A quarter of a diopter of astigmatism.
005 = The Axis as to where your astigmatism is located at.

You don’t have to worry. You really only need correction in your right eye. Just get your eyes examined every year or two to make sure your prescription doesn’t change and the health of your eyes are good.

I hope that this helps you out and if you have any other questions, please feel free to contact me.

Question #2

Peggy MacIntyre

My prescription reads:

Sphere Cylinder Axis Add
OD: -3.75 -0.75 030 +2.50
OS: -3.25 -0.50 160 +2.50

I want to get a pair of reading glasses and a pair of single vision lenses for nearsightedness. My question is does all this information apply to reading glasses? Would the same correction need to be made to them as for the nearsighted lenses?

The answer is yes. You can get a pair of glasses for reading and for distance. You have an ADD power of +2.50, so to get your reading prescription, you have to transpose your Add power along with your distance prescription.
Your reading Rx is different than your distance Rx.

This is your distance Rx:
OD -3.75 -0.75 x 030
OS -3.25 -0.50 x 160

This is your Reading Rx:
OD -1.25 -0.75 x 30
OS -0.75 -0.50 x 160

And if you were to get a pair of bifocals/progressives, your distance Rx would be in the top portion of the lenses and the +2.50 Add power in the lower bifocal portion.

I hope this helps you out and please feel free to contact me with any other questions.

Best Regards,
Angie Conn

Prism Correction

Prism can be a little complicated and hard to understand. I will assure you that when you are done reading this article, you will get quite the understanding regarding prism correction.

First off…What is prism?

Prism can be used to correct vision for an individual whose eyes are not perfectly aligned as with, for example, a patient with strabismus. When the eyes are not aligned, the right and left eye see different images resulting in blurred or double vision. Sometimes the brain can even “shut off” one eye, in an attempt to remedy the vision, resulting in monocular vision and loss of depth perception. Prism can often be used to align the images seen by both eyes, so the eyes can fuse or see the same image, restoring visual clarity and depth perception.

Prism, like lens power, is also measured in diopters (Δ), but measured differently. One diopter of prism is equal to the prism required to divert a ray of light 1 cm from its original path, measured at a distance of 1 m from the prism.

As important as the amount of prism, is the direction of prism. The prism must displace viewed objects in the proper direction to achieve the desired visual correction. Prism direction can be specified in two ways, either using the prescriber’s method or the 360 method.

The prescriber’s method specifies the direction if the prism in terms of the base, using base-up, base-down, base-in, and base-out (base-in referring to the direction of the nose and base-out referring to the direction of the temple). Often prescriptions will include a combination of directions to achieve the proper resultant prism. For example: 2 Δ base-in and 1 Δ base-up.

Labs however, use a 360° or 180° method of describing base direction. Using the 360° method, when a lens is viewed from the front, a prism with a base direction to the right (base-in for the right eye and base-out for the left) becomes 0°. Likewise, a prism with a base direction to the left (base-out for the right eye and base-in for the left) becomes 180°. Base-up then becomes 90° and base-down 270°. Using this method, prism directions other than base-in, base-out, base-up, and base-down can be specified at a single angle e.g. 2.7 Δ base 64°. The 180° method is similar, however, as the name suggests, only 180° are used, consequently, an up or down direction must also be specicfied.

Prism specified in using the presciber’s method consisting of multiple base direction components can easily be converted to the 360° or 180° methods by using a prism chart or simple trigonometric formulae.

Source: Laramy-K

∆ is the symbol for Prism





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Optronics Patternless EdgerMost people purchase their glasses at the one hour labs because they are convenient and they can get their glasses the same day. Some optical stores do not have full labs so they have to venture out and use a wholesale lab.  What is the difference between those one hour labs and those wholesale labs? The difference is really not too much different from my personal experience.

The only difference that I can see is that one hour labs don’t take enough time to do a complete final inspection and cosmetic inspection before the pair of glasses are dispensed, thus results in a lot of returns and remakes.  Also, you get what you pay for.

A wholesale lab is about volume and accuracy. The main focus is on the client and making sure that their glasses meets and exceeds the customers expectations. No more of this within tolerance crap. The prescription and measurements has to accurate or it gets rejected. Also, the wait is a little longer when getting glasses from a wholesale lab. It ca take up to 2 weeks in some cases.

Do you have experience working in either a wholesale lab and/or one hour lab? Tell me your experience with them and why you prefer one over the other?

As a customer, what if your experience with purchasing glasses at either one of these place? I would really like to know what most people prefer…

Best Regards,

Angie Conn

Optician goes postal….

A Day In The Lab

Cool video….I know this is a Lencrafters lab…I used to work at one…lol…
You have to find some way to have fun!! Enjoy!