A 21st Century Retinal Camera
This is a review of the Nidek AFC-230 retinal camera. I had been waiting for years for a company to develop a retinal camera design that...
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GUTHRIE EYE CARE
405-260-2020
Doug Cook
Mar 17, 20122 min read
Free Fusion of Stereo Optic Nerve Head Images
How to Free-Fuse Stereo Imaging Each stereo view consists of two images, one for each eye. Free viewing is the technique that will allow...
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Doug Cook
Sep 1, 20111 min read
Exam Chair Kerbangs
I invented a fix that prevents this unwanted surprise. The chairs we use are the Topcon OC-20T. A Magnetic Solution Slip a magnet into...
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Doug Cook
Jul 12, 20111 min read
Hot Weather Affects Photochromic Lens Darkening
Photochromic lenses are lenses that can get darker as one goes into brighter light. Inside or on the lens a component (either a silver...
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Doug Cook
Mar 29, 20112 min read
Selected Tips to Improve Vision Efficiency after Vision Loss
This guide has tips on items that can help a person with needs to help with their vision problem. There are dozens of vendors and we...
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Doug Cook
Jan 4, 20111 min read
A New Use for a Sonic Screwdriver
Fans of Doctor Who would recognize the gadget below. It’s a Sonic Screwdriver. I got one through the BBCAmerica shop website for...
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Doug Cook
Apr 30, 20102 min read
Going from Peer-to-Peer to Server with OfficeMate
I was preparing our computer network for an upcoming practice management software major update. We use OfficeMate as many eye care ...
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Doug Cook
Jul 3, 20092 min read
X-Cyl and ImageRx
In 1997 we wrote two little computer programs that took off wild in popularity. Ophthalmic Optics can have some complicated equations. ...
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Doug Cook
May 16, 20094 min read
Recurrent Corneal Erosion
Recurrent Corneal Erosion can be best described as a healing disorder of the epithelium or the “skin” that covers the cornea of the eye....
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Doug Cook
Feb 1, 20091 min read
Lincoln’s Eye Position
If one surveys the available portraits seen on the internet of Abraham Lincoln, a few will show an eye turn. This type of strabismus is...
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Doug Cook
Jan 27, 20093 min read
Bifocal Contacts
Around the age of 40, symptoms of presbyopia begin to develop for most people. Presbyopia is the natural loss of focusing due to...
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Doug Cook
Jan 27, 20091 min read
Focusing Problems Illustrated
Problems with focusing (accommodation) are frequent causes of vision problems in children and adults. Different varieties of focusing...
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Doug Cook
Jan 26, 20093 min read
Convergence Insufficiency
Convergence insufficiency is a common problem of binocular vision. This disorder can affect children or adults but tends to be more...
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Doug Cook
Jan 26, 20094 min read
Soft Contact Lens Care
INSERTION Check to see if the lens is inside-out or if it is correct. Place the lens on the tip of the index finger of your right hand....
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Doug Cook
Jan 26, 20093 min read
Top 10 Eye and Vision Myths
Scratches on Lenses can be Polished Out No – well not practically. Most prescription ophthalmic lenses are required to maintain a 2mm...
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Doug Cook
Jan 26, 20095 min read
Gas Permeable Lens Care
INSERTION Place the lens, concave side up, on the tip of the index finger of your right hand and place a drop of the prescribed...
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Doug Cook
Jan 24, 20096 min read
Headaches
Perhaps the most common symptom our patients come in with is the headache. Very often these symptoms are related to vision or visual...
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Doug Cook
Jan 24, 20091 min read
Visual Field Testing
A visual field is a test of peripheral vision. This test can reveal evidence of retinal or optic tract disease and other neurological...
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Doug Cook
Jan 24, 200911 min read
Why Do Glasses Fail?
Most of the time, you can go to the eye doctor and get a pair of glasses without any trouble getting used to the them. There are...
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Doug Cook
Jan 24, 20092 min read
Can Emotions Affect Vision?
Yes. Some of the best examples include: Getting a new pair of glasses Patients with vision loss from conditions such as a cataract,...
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