Sunday, February 19, 2017

Allergic "Pink Eye"

It started this morning for me - I awoke with both eyes itchy, watery and goopy as heck. Most people jump to "pink eye", go to their PCP who confirms the diagnosis and prescribes antibiotics. Also since it's Spring, somewhere on someone's blog or article someone is going to mention "allergic pink eye". There is no such thing. Pink eye is a lay term but it strongly implies viral or bacterial infection. It doesn't help that the word "conjunctivitis" has become synonymous with pink eye, so a diagnosis of "allergic conjunctivitis" means "allergic pink eye" to a lot of people,which is still in their mind a form of pink eye. If both eyes are itchy and watery and even (as in my case) goopy with mucous, it is probably allergies. A true "pink eye" infection usually doesn't start out with both eyes having equal symptoms. You probably need an eye care professional to help you, but if it's Spring, and if you are itchy, and if both eyes start itching at the same time, it is unlikely that you are "infected". Try $10 OTC antihistamine eye drops (Alaway is my personal preference) first before you show up at the 24 Hr emergency clinic. And if you do seek medical attention, try the optometrist first instead of the PCP.

Myopia Control

This echos what a lot of optometrists including myself have said for decades: undercorrection doesn't work.  

https://www.aop.org.uk/ot/industry/contact-lenses/2017/02/17/managing-myopia

I look forward to the day when some manufacturer markets a soft lens specifically designed for myopia control.

Friday, February 10, 2017

These "Smart Glasses" Adjust To Your Vision Automatically

The glasses' liquid lenses change shape according to the distance of objects, making reading glasses and bifocals unnecessary


http://www.smithsonianmag.com/innovation/these-smart-glasses-adjust-your-vision-automatically-180962078/




My initial thoughts: A) ghastly. gonna have to make them normal looking. B) I am laughing at the "2-3 years" timeline to market. C) initial rollout will likely only come in the standard +4 to -6 with less then 2D cyl which is going to disappoint a lot of people. D) this is going to be expensive. Really expensive, and no your VSP will not cover it. I'm thinking in the $2500 range

Thursday, February 9, 2017

Vision Care Daily

Here's a new daily online paper I'm trying! Read the latest news and information to help you take care of your eyes and vision! VISION CARE DAILY

Thursday, February 2, 2017

Refractive Error

Reasons for refractive error:
Eye too small
Eye too large
Eye wrong shape
Over 40

NOT reasons for refractive error:
Read too much/used tablet too much/watched too much TV
Wore wrong Rx
Wore glasses
Didn't wear glasses
Rubbed eyes
Didn't eat carrots
Strained eyes
Didn't do eye exercises

Thursday, January 26, 2017

Coopervision's New Products

We recently received a letter from Coopervision stating that their Avaira 2-week lens is being discontinued. Fine, we don't have many patients in those. I don't think I am insulting anyone or shocking the world if I say that lens never sold well, here or anywhere. In its stead we are advised to now Rx their new 2-week lens, Avaira Vitality. The description in the letter is a bit vague. Here's word-for-word what Coopervision says about the new lens: "enhanced with higher water content, improved protection with a Class 1 UV filter, affordable silicone hydrogel option, seamless refit for Avaira wearers". OK so that all sounds nice. UV protection is good, and who doesn't want more water?  It's probably an improvement on design, but to be honest it doesn't sound like a huge change. Can't help but wonder if it's more of a marketing thing, but then again I'm a known skeptic. They also have a relatively "new" product (Summer 2016, I think) called Coopervision Biofinity Energys. We just received a fitting kit this week out of the blue. We are not a big Coopervision practice so I have to admit I had not kept up with this company and their new products and I had to do some research. The company claims it helps wearers with digital eye strain associated with "growing screen time." It's true that many patients have symptoms from their increased screen time, and Computer Vision Syndrome is one of the most complained about things in all of eye care. But once again the claims are kind of vague: "Digital Zone Optics" (whatever those are) to help with "eye tiredness and dryness". Here's what their website states about Digital Zone Optics: "Digital Zone Optics lens design, the breakthrough that integrates multiple front-surface aspheric curves across the entire optical zone. This simulates what’s known as positive power in the center of the lens, helping reduce strain on the eyes’ ciliary muscle as a person moves their gaze from on-screen to off-screen and back with less effort."
Ok that all sounds great, it really does. But you have to admit it's kind of vague, like I said before. "Simulating positive power" sounds like asphericity, a concept that is not new. However having it be "in the center of the lens" sounds like a center-near multifocal, but the word "multifocal" does not appear in any description of the lens anywhere, nor is this marketed to presbyopes. Actually if you read the press release, Coopervision says the lens is specifically marketed to "Millennials". So a little bit conflicting. Kudos to Coopervision for actively designing and marketing a lens for both Millennials and Computer Vision Syndrome sufferers, but I'm just not quite sure how this lens works or how it fits into a busy contact lens practice. We'll see, I guess!