The Plusoptix S-20 is the most advanced portable auto refractor (vision screener) on the market today
This little unit screens both eyes of any child over the age of 6 month in just seconds
And detects
Anisometropia
a vision condition where your two eyes have significantly unequal focus, leading to symptoms like headaches, dizziness, eye strain, and poor depth perception.
Astigmatism irregularly shaped cornea causing blurred or distorted vision at all distances.
Myopia (nearsightedness)
Hyperopia, farsightedness
Anisocoria pupils that are unequal in size. can be a sign of a serious underlying neurological or eye condition.
Strabismus, commonly known a condition where the eyes do not properly align when looking at an object. One eye focuses on the target while the other turns inward, outward, upward, or downward.
Cataracts
Corneal reflex, the blink reflex.
Instantly download results:
This is where the Spot vision screener stops
But the Plusoptix S-20 DOESN’T stop there.
1.This unit performs HOTV screening.
This is a standardized test that uses only four letters—H, O, T, and V—to measure vision. It is primarily used (ages 3–5) or patients with communication difficulties. Instead of reading lines, the child matches the letter they see on the chart to a hand-held response key. But THE S-20 does it better than a dirty wall chart 20 feet away at the end of a dark, busy hall in your pediatric office.
These 4 letters are protrude on a well lit lcd screen. Making this much more accurate
But wait there’s more.
This unit also has a
2.Red Reflex Test: Commonly used during infant checkups.
The pediatrician will shine a light into the Childs eye looking spots that might indicate pediatric eye issues.
The problem is when the pediatrician turns off the light and walks away do they remember everything they saw, did they get a good look in the first place,
The S-20 takes a picture that can be printed or downloaded, so the pediatrician can take their time reviewing it.
3. Superior Binocular Accuracy
Plusoptix S20 measures both eyes simultaneously, just like how vision works in real life.
✔ More reliable detection of:
- Anisometropia (unequal prescription between eyes)
- Amblyopia risk factors
- Binocular refractive errors
Benefit: Fewer false positives and more confidence in screening results.
In contrast, the Spot which can miss subtle binocular issues.
4. Built for Pediatrics — Doesn’t Feel Scary
The S20 uses engaging fixation targets that capture attention easily — even from toddlers and uncooperative children.
✔ Longer working distance (~1 m / 3 ft)
✔ Friendly prompts and visuals
✔ Fewer attempts required to get a reading
Benefit: Higher first-attempt success rate and less stress for patients and staff.
Spot’s closer range and handheld posture can feel more invasive to young kids.
5. Faster Throughput — Real Time Results
The S20 delivers results quickly and efficiently.
✔ Instant automated interpretation
✔ Clear Pass/Refer indicators
✔ Reduced operator training time
This speeds up high-volume screenings — ideal for busy pediatric clinics, school screenings, and community vision programs.
6. Clinically Validated Against Established Guidelines
Plusoptix technologies align closely with AAP and AAPOS vision screening recommendations.
✔ Strong evidence in detecting amblyopia risk
✔ Reduced over-referral rates
✔ Clinician confidence backed by published performance
Spot is effective, but several studies show Plusoptix devices often outperform handheld screeners in specificity and sensitivity.
7. Less Operator-Dependent
Plusoptix S20’s firmware and optics reduce user variability.
✔ Easier to use consistently, even for minimally trained staff
✔ More standardized results across screeners
✔ Less impact from operator experience
With Spot, handheld operation means readings depend more on steadiness, angle, and distance — increasing variability.
8. Better Screening Results in Challenging Populations
Children with developmental delays, sensory issues, or low cooperation are no match for the S20’s:
✔ Engaging targets
✔ Built-in prompts and feedback
✔ Longer, comfortable screening distance
The Spot, with its closer and more direct method, can yield more retries and frustration
All of this in one easy to use portable device with 5 built in screening thresholds designed to meet every users needs is why I can easily say this is the most advanced portable auto refractor (vision screener) On the market today and there is no reason every pediatrician should not have one
Yes the machine is not cheap but by today’s standard for all the technology that goes into this unit and all the information you get from it – it is not that expensive either.It is still cheaper than most luxury watches which only serve one purpose and yield minimal information.
Click here to Order your today






