The near point of convergence (NPC) is a simple test performed in clinic that can reveal abnormalities about the binocular vision system. A reduced NPC in isolation is synonymous with a diagnosis of Gross Convergence Insufficiency. Convergence ability can be affected in traumatic brain injuries or be inherent to a weakened binocular vision system. In […]
Convergence Insufficiency: Real or Imposter? Read More »
Google Glass. Whether it’s the can’t-live-without-it device of the future or the less desirable “Segway for your face”, there’s no denying the intrigue generated by this sleek, uber-technological gadget. When I heard that a Google Glass demonstration was going to be at Vision Expo West this year, I immediately jumped at the opportunity. It was clear since the arrival
Through the Google Glass: My Virtual Reality at VEW 2013 Read More »
Whether you’re in a nice quiet exam room or a noisy cafeteria at a school screening, the chances are that your pediatrics patient is going to have the attention span of a small woodland creature. A few of the main concerns with a pediatric patient are to rule out strabismus, amblyopia, and other ambylogenic factors
Direct Ophthalmoscope: The Ultimate Pediatric Screening Tool Read More »
Do you answer “no” to the questions on vision screening forms that ask if you ever experience double vision or words moving on the page when reading? If you are like me, you’ve never experienced these symptoms that are common among patients with a binocular dysfunction. Not being able to experience this myself, I found
Binocular Vision Problems in Layman’s Terms Read More »
Convergence insufficiency (CI) is one of the most common binocular vision disorders that is encountered in optometry. It is a condition that was first described by Von Graefe in 1855 and has been the focus of many studies since then. Jeffery Cooper, O.D, M.S., and Nadine Jamal, O.D. have recently published a paper that compiles
The Ultimate Guide to Convergence Insufficiency Read More »
From the start of Optometry school, professors and supervisors preached that a patient’s chief complaint and case history should direct your exam. Finally in my fourth year of Optometry I understand why. I have found that when it comes to binocular vision disorders or what Griffin & Grisham in “Binocular Anomalies: Diagnosis and Vision Therapy”
Case History: The Key to Understanding Binocular Vision Problems Read More »
Let me take you back about a year ago… It was early on a Monday morning and I was sitting in vision therapy lab learning the basics of the DEM test, eagerly taking down notes along with the rest of my classmates. I had my glasses on top of my head (I am a low
Harmon Distance: The Key to Comfortable Vision Read More »
What?! Have I lost my mind?! Well most optometrists would say that having an NPC of TTN is the ultimate convergence a patient can have; however I ask you to think differently. Ok. Let’s take a step back and start from the beginning. As part of your routine entrance tests you take out an accommodative
Near Point of Convergence: To The Nose is Not All You Need to Know! Read More »
Everyone knows the game of Tic-Tac-Toe. It is a game that you learned as a kid and one that you still play when you are on a plane, have some time to kill or (let’s be honest) are bored in class. Well did you ever think that such a simple game could be used in
Tic-Tac-Toe: A Perceptual Exercise? Read More »
What do you think of when you hear “strabismus?” Perhaps you think of eye turns like exotropia and esotropia or you may immediately think about surgery…. Well, when I think of strabismus I think “AHHH! What do I do ?! Okay, well maybe it isn’t a COMPLETE freak-out…. however there is a small part of
The Basics of a Strabismus Exam Read More »
