Ординатура / Офтальмология / Английские материалы / Diagnosing and Treating Computer-Related Visual Problems_Sheedy, Shaw-McMinn_2003
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264 Diagnosing and Treating Computer-Related Vision Problems
FREE COMPUTER VISION SCREENING
Computer vision syndrome is a common cause of eye discomfort and reduced vision. If you have significant problems related to computer use, a free screening sponsored by the Woodcrest Breakfast Lions will be offered on Saturday, April 25th, at the Woodcrest Vision Center, 17576 Van Buren Blvd.
J. F. Massengill, O.D., a graduate of the Ohio State School of Optometry, will perform the screening and answer your questions about computer vision.
Dr. Massengill specializes in diagnosis and treatment of computer vision syndrome and is the author of numerous journal articles.
Space is limited. If you would like to make an appointment to meet Dr. Massengill, please call 1-800-872-2020.
Appendix 14-4 265
Example of Introductory Letter
[Letterhead]
John London
Federation Financial Services
2575 Yorba Linda Blvd
Fullerton, CA 92631
Dear Mr. London,
Allow me to introduce myself and my office. I am Dr. Eric Minteer and I am a computer vision specialist. I am new to the Fullerton area and have recently started to become active in local affairs through the Fullerton Chamber of Commerce.
There are 100 million computer users at work, with 70% of them having symptoms causing a loss of productivity. We all know that quality health care costs are soaring. Many companies are able to provide medical insurance for their employees, and some businesses are able to provide different types of vision insurance. Unfortunately, even these efforts may not be enough. Many times patients are left to bear a large financial burden on their own, particularly when computer vision care is involved.
As a way of introducing myself to the business community, I would like to extend to your company this special offer. Our office would be pleased to provide, at no additional cost to the regular examination fee, a computer vision evaluation to all of your employees and their immediate families. Additionally, we would like to add a standing 10% discount off our usual and customary fees for any additional treatment required now or in the future. We accept all major insurance plans, Visa, and MasterCard, and we can even spread payments out over several months to facilitate easy payment.
Our office is dedicated to providing quality computer vision care in an affordable manner. We specialize in compassionate patient treatment. If you have any questions or would like any additional information, please do not hesitate to call me at 879-2020.
Sincerely,
Eric Minteer, O.D.
266 Diagnosing and Treating Computer-Related Vision Problems
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ANNOUNCING |
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Opening of Our |
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New Office |
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in Temecula |
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TEMECULA EYE MEDICAL CENTER
Specializing in
COMPUTER VISION CARE
W. Allan Jones, M.D.
Ophthalmologist
Brent Argentino, O.D.
Optometrist
CALL FOR APPOINTMENT (714) 695-2020
41540 Winchester Road, Suite B
Temecula, CA
Appendix 14-4 267
THE DANGERS OF COMPUTER VISION SYNDROME
Join us for the first in a series of FREE SEMINARS
On Thursday, April 30th—7:30 PM Downey Public Library
11121 Brookshire Avenue, Downey featuring
Dr. Richard Stanley
We invite you to join us for the first in a series of FREE SEMINARS featuring exciting information about you and your child’s computer vision. Dr. Stanley believes building sight and creating vision are critical. Whether it be at work, school, or computer games, you and your children must be able to perform visual tasks on the computer without disabling discomfort. The evening will include a lecture and demonstration at a computer workstation. The latest specific treatments for computer-user symptoms that stem from vision problems will be the highlight of Dr. Stanley’s message. You will also receive valuable and educational take-home materials for self-evaluation of your home computer workstation. Seating is limited and reservations are a must, so reserve early. We look forward to seeing you there.
You Will Learn
•Why vision problems are caused by computer use among children and adults
•How to identify symptoms of computer vision syndrome
•How computer vision problems can cause musculoskeletal pain
268 Diagnosing and Treating Computer-Related Vision Problems
•What can be done to correct the problems and have stress-free comfort vision on the computer
SEATING IS LIMITED AND RESERVATIONS ARE A MUST!
RSVP (310) 862-2020
What patients say about Dr. Stanley
After suffering from blurry vision and headaches at work, Dr. Stanley treated me and gave me comfort and reduced stress for the first time in years! Dr. Stanley has stabilized my vision and allowed me to perform at a higher level than I ever thought possible. My 9-year-old son is doing much better in school since Dr. Stanley corrected his computer vision problem.
Appendix 14-4 269
Example of testimonial
Dear Dr. Kame,
Computer vision care has changed my entire life. I am no longer the confused soul working double time just to figure out what others saw at first glance. It has given me freedom from the annoying and perplexing conditions that used to haunt and handicap me.
For the first time in my life, I can sit and use the computer comfortably longer than an hour. In fact, now a morning passes and I haven’t even skipped a line or had double vision. My productivity has increased greatly since I am no longer plagued by losing my place and by dull nagging headaches. Surfing the Web or searching files and locating appropriate numbers is now a breeze.
Now that I’m aware of the “eyes leading the body,” I have arranged my workstation to allow muscle comfort and have increased data entry speed and accuracy. I am amazed each day by the added power my new computer lenses give me. I am no longer leery of driving at night after a long day at the computer. I have improved depth perception, and I trust my judgment. Street signs come immediately into focus.
There is a small sadness when I reflect on the struggles I went through as a student and young worker trying to conquer such problems. If only computer vision treatments would have been around then, life would have been much simpler and less limiting. These thoughts of sadness are quickly forgotten and replaced with joy and excitement as I look forward to moving ahead in the future to a more fulfilled, productive life! Thank you Dr. Kame! Thanks to everyone on your team!
Julie Carlson
Index
Page numbers followed by f indicate figures; t, tables; b, boxes.
Access lenses, 97t, 99f, 100f Accommodation
amplitude of. See Amplitude of accommodation
dark focus of, 63–64 defined, 47
disorders. See Accommodation disorders
display viewing distance and, 186 hyperopia and, 52–53
image quality and, 66–68 lag of, 72–73
myopia development and, 49
tests for. See Accommodation tests Accommodation disorders
computer glasses for, 109 dark accommodation, 63–64
examinations for. See Accommodation tests
fatigue and, 65–66 hysteresis, 64–65
intermittent blurred vision, 37 symptoms of, 61–62, 63, 64 treatment of, 62, 73–75
Accommodation tests, 68–69 accommodative facility, 70, 71f amplitude of accommodation, 69 binocular accommodative range, 71–
72
lag of accommodation, 72–73 Accommodative fatigue, 65–66 Accommodative hysteresis, 64–65 Acne rosacea, 118b
treatment of, 121
Advertising, 263 free screening, 264
Web site, 9, 10f, 262
Air quality, indoor, 209–210 dry eyes and, 117
Allergic conjunctivitis, 118
American Optical Technica lenses, 97t, 98–99, 104f
Amplitude of accommodation, 62 accommodative fatigue with near
work, 65–66 age, effects of, 62–63, 69
clinical examination for, 69 display viewing angle and, 189 vision training, 74–75
Announcement of office opening, 266 Antiradiation filters, 153
Antireflection lens coatings, 107
Antireflection (AR) screens/filters, 146, 148–150, 151–152, 156
antiradiation features, 153 antistatic features of, 153 glass or plastic, 148, 150, 152 mesh, 146, 148, 151–152 privacy, 150, 152–153
screen contrast and luminance, 148– 149, 152
Antistatic filters, 153 Appointments, making of, 8–10
AR screens/filters. See Antireflection (AR) screens/filters
Assistants
introducing the doctor, script for, 23–24
271
272 Index
Assistants—continued
patient history and pretesting, review of, 21–22
Asthenopic symptoms, 39, 40b of esophoria, 41
evaluation of, 212 Astigmatism, 53
computer glasses for, 109 correction of, 54, 55t visual acuity and, 55
Backaches, 41–42, 92
Baffles for computer displays, 153 Bifocals, 91
for children, 49
for presbyopes, 99–103, 105 Binocular accommodative range, 71–
72
Binocular conditions/disorders convergence insufficiency, 77 dark vergence problems, 78
diagnosis of, 79–80, 84, 85f. See also Binocular vision measures
diplopia, 37–38, 41 esophoria. See Esophoria exophoria. See Exophoria heterophoria, 75–76, 84, 109 light sensitivity symptoms, 41
oculomotor dysfunctions, 83–84 treatment of, 84, 86
vision training, 84, 86, 87f–88f Binocular vision
conditions/disorders. See Binocular conditions/disorders
convergence, 76–77 dark vergence, 77–79
diagnosis of. See Binocular vision measures
Binocular vision measures convergence, near point of, 82–83 oculomotor dysfunctions, 83–84 phoria, 81
Sheard’s criterion, 82 strabismus, 83–84
vergence ranges, 81–82 vertical phoria, 83, 85f
Bion Tears (Alcon), 121 Blepharitis, 118–119
treatment of, 121 Blepharochalasis, 118b
Blink rate, dry eyes and, 115–117 Blurred vision, 36–37. See also Accom-
modation disorders; Refractive errors
astigmatism. See Astigmatism hyperopia. See Hyperopia intermittent. See Intermittent
blurred vision myopia. See Myopia Body posture, 197–199
evaluation of, 213 Brochures, 12 Business cards, 12
Case presentation scripts, 25–27 Cataracts, 122
Causes of CVS. See Diagnosis Character size, 3× rule of, 55–56, 166–
167 Checkout staff, 30 Children, 221–222
computer usage in,
harmful effects of, 221–222 prevalence of, 1, 221
examination of, 223 musculoskeletal problems in,
222
myopia development in, 49, 51 obesity and computer usage in,
221–222
reception areas for, 13, 14f recommendations for, 224 virtual environments and,
223–224
vision problems and, 222–223 workstations for, 199, 222
Clinical examinations. See Examinations
Color displays, 161, 170–171 Color perception problems, 38 Computer displays, 157, 183
accommodative response and image quality of, 66–68
antiradiation filters, 153 antireflection screens. See Antireflec-
tion (AR) screens/filters antistatic filters for, 153 baffles for, 153
character size, 3× rule of, 55–56, 166–167
color, 161, 170–171 contrast, 168
antireflection (AR) screens/filters, 148–149, 152
contrast polarity, 168–169 distance from, 185–187
presbyopic prescriptions/lens design, 93–96
dot pitch, 161, 163–164 evaluation of, 213 examinations of, 157
flat panel. See Flat panel displays flicker (refresh) rate, 171–176
glare on. See Glare; Glare discomfort gray scale, 169–170
head-mounted, 177–179
head reference points/planes, 187–188 height of, 187, 199
evaluation of, 211 inappropriate, consequences of,
193–194
neck extension and flexion and, 192
ocular gaze angle and, 188–192 presbyopic prescriptions/lens
design, 93–94 recommendations for, 194–195 reference planes, 187–188 total, 193
hoods for, 153
horizontal visual line, 187–188 how displays work, 160–161
Index 273
human flicker perception and, 171– 172
legibility of, 158–160 line of sight and, 187
luminance of, 131, 167–168 antireflection (AR) screens/filters,
148–149, 152
myopia development and, 50–51 ocular gaze angle and, 188–192 paper displays, comparison of, 157 patient education about, 157 pixels, 160–161, 163, 164
pixel settings, 164–165
presbyopic prescription/lens design considerations, 92–96
reading performance and, 157–158, 159f
reflections, 143, 156
antireflection screens. See Antireflection (AR) screens/filters
diffuse, 145–146, 147b, 151, 154– 155
evaluation of, 212–213 hoods or baffles for, 153 sources of, 144–145 specular, 145, 150–151, 154
treatment for, 154. See also Antireflection (AR) screens/filters
workstation changes, 151 resolution of, 163–165 screen tilt and, 195–196 suprathreshold flicker effects,
172–175
visual acuity, refractive errors and, 54–56
Computer evaluation explanation, 18, 21, 22f
Computer glasses, 107
for accommodation disorders, 109 for astigmatism, 109
for convergence insufficiency, 109 defined, 108
for heterophoria, 109 for hyperopia, 108