Cooling and Freezing Equipment Operators and Tenders vs Ophthalmic Laboratory Technicians: $41K vs $39K Median Pay

Cooling and Freezing Equipment Operators and Tenders vs Ophthalmic Laboratory Technicians: what changes?

Consider Cooling and Freezing Equipment Operators and Tenders if you want to operate or tend equipment such as cooling and freezing units, refrigerators, batch freezers, and freezing tunnels, to cool or freeze products, food, blood plasma, and chemicals. Consider Ophthalmic Laboratory Technicians if you would rather cut, grind, and polish eyeglasses, contact lenses, or other precision optical elements. Both list high school diploma or equivalent; compare training and prior experience separately.

Try this next: Compare three local entry-level postings for Cooling and Freezing Equipment Operators and Tenders and Ophthalmic Laboratory Technicians. List the duties, credentials, prior experience, and paid training each employer actually asks for. Try a supervised class or sample project from each field before choosing a program.

BLS 2025 wages and 2025–2035 projections. National medians are not starting offers. Occupation size is not a count of vacancies. View the BLS data.

Compare the practical differences

Cooling and Freezing Equipment Operators and Tenders

National median pay (2025): $41,330
Route into the job: High school diploma or equivalent; More than one month and up to 12 months of on-the-job training, in addition to any qualifying education or licensing
Prior related experience: No prior related occupation is typically required; employer requirements vary.
Training and licensing: More than one month and up to 12 months of on-the-job training, in addition to any qualifying education or licensing.
Work to investigate: Record temperatures, amounts of materials processed, or test results on report forms.
Annual openings (2025–2035): 800

Know before you choose

This is a small national occupation (7,700 jobs in 2025), so location and employer concentration can matter more than the national median suggests.

See the full Cooling and Freezing Equipment Operators and Tenders brief

Ophthalmic Laboratory Technicians

National median pay (2025): $39,460
Route into the job: High school diploma or equivalent; More than one month and up to 12 months of on-the-job training, in addition to any qualifying education or licensing
Prior related experience: No prior related occupation is typically required; employer requirements vary.
Training and licensing: More than one month and up to 12 months of on-the-job training, in addition to any qualifying education or licensing.
Work to investigate: Mount and secure lens blanks or optical lenses in holding tools or chucks of cutting, polishing, grinding, or coating machines.
Annual openings (2025–2035): 2,200

Know before you choose

This is a small national occupation (18,600 jobs in 2025), so location and employer concentration can matter more than the national median suggests.

See the full Ophthalmic Laboratory Technicians brief

How the national numbers differ

Cooling and Freezing Equipment Operators and Tenders has the edge on projected growth

Cooling and Freezing Equipment Operators and Tenders is at 5.9% projected growth, compared with 2.2% projected growth for Ophthalmic Laboratory Technicians.

Ophthalmic Laboratory Technicians has the edge on annual openings

Ophthalmic Laboratory Technicians is at 2,200 annual openings, compared with 800 annual openings for Cooling and Freezing Equipment Operators and Tenders.

Cooling and Freezing Equipment Operators and Tenders has the edge on median pay

Cooling and Freezing Equipment Operators and Tenders is at $41,330, compared with $39,460 for Ophthalmic Laboratory Technicians.

39.8/ 100

Cooling and Freezing Equipment Operators and Tenders

36.3/ 100

Ophthalmic Laboratory Technicians

Each available metric is ranked from 0 to 100 against the careers on ChooseField. The weighted average uses this profile: pay 30%, growth 25%, openings 30%, preparation level 15%. Missing values are not scored as zero; their weights are redistributed across available metrics. Occupation size has zero weight: employment is not accessible vacancies. Preparation categories do not measure admission difficulty or years without earnings. The score summarizes national measures; local opportunities and personal fit still need separate consideration.

Detailed evidence

Cooling and Freezing Equipment Operators and Tenders vs Ophthalmic Laboratory Technicians

Dimension	Cooling and Freezing Equipment Operators and Tenders	Ophthalmic Laboratory Technicians
Median pay (2025)	$41,330	$39,460
Pay percentile	12.7 percentile	11 percentile
Projected growth (2025–2035)	5.9%	2.2%
Annual openings (2025–2035)	800	2,200
2025 employment	7,700	18,600
How you qualify	High school diploma or equivalent; More than one month and up to 12 months of on-the-job training, in addition to any qualifying education or licensing	High school diploma or equivalent; More than one month and up to 12 months of on-the-job training, in addition to any qualifying education or licensing
O*NET preparation group	Job Zone 2	Job Zone 2
Related work experience	No prior related occupation is typically required; employer requirements vary.	No prior related occupation is typically required; employer requirements vary.
On-the-job training	More than one month and up to 12 months of on-the-job training, in addition to any qualifying education or licensing.	More than one month and up to 12 months of on-the-job training, in addition to any qualifying education or licensing.

The table reports national benchmarks and reviewed work descriptions. It does not rate personal suitability, job security, or physical safety.

Read Cooling and Freezing Equipment Operators and Tenders brief Read Ophthalmic Laboratory Technicians brief

Cooling and Freezing Equipment Operators and Tenders vs Ophthalmic Laboratory Technicians: what changes?

The facts most likely to affect your decision

Cooling and Freezing Equipment Operators and Tenders

Ophthalmic Laboratory Technicians

How the national numbers differ

Cooling and Freezing Equipment Operators and Tenders has the edge on projected growth

Ophthalmic Laboratory Technicians has the edge on annual openings

Cooling and Freezing Equipment Operators and Tenders has the edge on median pay

Cooling and Freezing Equipment Operators and Tenders vs Ophthalmic Laboratory Technicians

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