4 Definitions of one’s BEST VISION

  • posted: Feb. 04, 2016
  1.  First, there is the industry standard which is 20/20 vision.  At most places where 20/20 normal is considered someone’s best vision, anything less warrants a referral to determine what abnormality exists that prevents 20/20 vision.
  2. Beyond the industry standard, there are caring doctors that check beyond 20/20, but only if they can have the ability to randomize the letters and shrink them down to 20/15, 20/12.5, or 20/10 vision; the holy grail being 20/8 vision.  Without additional equipment this makes for a rather lengthy 1 vs. 2 session with a lot of guessing of letters.
  3. BEYOND the caring doctor at a facility ill-equipped to find the best vision is wave-front analysis performed with high tech equipment like the OPD III at 4Sight iCare.  It records the best combination of sphere, cylinder and axis to perfect one’s vision.  You see there are several factors that can disrupt one’s vision from achieving 20/8.  Only 3 are corrected for in a prescription and these 3 are sphere power, cylinder power, and axis location; there exist instances where optimizing these 3 can reduce other distortions but only if the wavefront analysis is proven to be accurate!  These distortions are referred to as Higher Order Aberrations (HOA), and these cannot be fully corrected for; only by optimizing the sphere, cyl, and axis can we reduce HOA’s if they are present.  Measuring their presence and how to optimize the 3 types of aberrations we can correct for yields one’s BEST CORRECTED VISUAL ACUITY.   This is then tested in the exam lane by demonstrating the vision on 20/20, 20/15, and 20/10 acuity letters.
  4. BEYOND a well equipped office with a caring doctor, you’ll find sports vision locations like 4Sight iCare that test beyond acuity.  In addition to acuity, they are testing convergence, focus change/facility, phoric posture, contrast sensitivity, macular pigment density, reaction time, depth perception, visual processing speed, multiple object tracking, peripheral awareness, attention, and more.  With testing performed in office at a Sports Vision Assessment, athletes can identify areas where they are lacking compared to the pro level and elect to improve their score with Sports Vision Training.

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