Eye Blink Rate Dry-Eye Screen Time Risk Checker

Audit counted complete blinks over actual observed time and caller comparison rate, not frame counts or unobserved screen hours; no dry-eye diagnosis, causation or therapy recommendation.

Description

Complete-blink frequency requires counted blinks and actual observed time.

Complete-blink frequency requires counted blinks and actual observed time. A pooled rate weights each interval by duration.1

Enter aligned nonempty nonnegative integer blink counts/positive observed minutes and nonnegative minimum rate. Return interval/pooled rates and strict-below-minimum binary flags.

When to use Eye Blink Rate Dry-Eye Screen Time Risk Checker

Use Eye Blink Rate Dry-Eye Screen Time Risk Checker when you need to evaluate the supplied records under the calculation and evidence rules below. No dry-eye diagnosis, causal screen-time inference or treatment is provided.

Prepare measured task, body, furniture or already weighted exposure records. Supply independently verified caller policies, tables and comparison limits with matching units and conditions.

How to use Eye Blink Rate Dry-Eye Screen Time Risk Checker and understand its results

  1. Prepare measured task, body, furniture or already weighted exposure records. Supply independently verified caller policies, tables and comparison limits with matching units and conditions.
  2. Enter completeObservedBlinkCounts, representedObservedMinutes, callerMinimumCompleteBlinksPerMinute using the field table and calculation rules, then run the tool.
  3. Read observedCompleteBlinkRatesPerMinute, pooledObservedCompleteBlinksPerMinute, belowCallerBlinkRateFlags. The explanation below defines the units, signs, ordering and any flags or placeholder values.
  4. If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
Input fieldMeaningValue type; see rules belowRequirement
completeObservedBlinkCountsComplete observed blink countslist of numberRequired
representedObservedMinutesRepresented observed minuteslist of numberRequired
callerMinimumCompleteBlinksPerMinuteCaller minimum complete blinks per minutenumberRequired

Enter aligned nonempty nonnegative integer blink counts/positive observed minutes and nonnegative minimum rate. Return interval/pooled rates and strict-below-minimum binary flags.

rate_i=count_i/minutes_i; pooled=sum(count)/sum(minutes)

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output fieldMeaningValue type
observedCompleteBlinkRatesPerMinuteObserved complete blink rates per minutelist of number
pooledObservedCompleteBlinksPerMinutePooled observed complete blinks per minutenumber
belowCallerBlinkRateFlagsBelow caller blink rate flagslist of number
json
{
  "input": {
    "completeObservedBlinkCounts": [
      5,
      10
    ],
    "representedObservedMinutes": [
      1,
      2
    ],
    "callerMinimumCompleteBlinksPerMinute": 6
  },
  "output": {
    "observedCompleteBlinkRatesPerMinute": [
      5,
      5
    ],
    "pooledObservedCompleteBlinksPerMinute": 5,
    "belowCallerBlinkRateFlags": [
      1,
      1
    ]
  }
}

Limitations and assumptions

No dry-eye diagnosis, causal screen-time inference or treatment is provided.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Heart Rate Recovery Work Pulse Delta Checker: Observed pulse recovery can be expressed relative to an individual prework baseline. An absent threshold remains unobserved. For a complementary task, use OCRA Technical Action Frequency per Minute Calculator: Technical-action frequency pools caller-classified actions over actual active minutes. Clock-shift duration would give a different denominator.

References

  1. Eye Blink Rate Dry-Eye Screen Time Risk Checker — tool.io

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