Laser Eye Surgery Calculator

Laser eye surgery break-even calculator compares 4,000 surgery cost to lifetime eyewear costs. 150 glasses + 200 contacts = 350/year savings. Break-even = 4,000/350 = 11.4 years. After that: pure savings until retirement age. Plus convenience benefits, sports performance, no eyewear complications.

Example: 35-year-old wears glasses (150/year for new pair every 2 years amortised) + contacts (200/year). Total annual eyewear 350. Laser surgery 4,000 (LASIK both eyes). Break-even 11.4 years. Years remaining (to age 75) = 40. Lifetime savings = 350 × 40 - 4,000 = 10,000 net savings. Plus quality of life benefits.

Laser surgery realities: (1) Cost 2,000-6,000 both eyes (LASIK basic to advanced). (2) Recovery 1-3 days. (3) Most patients achieve 20/20 vision (95%+). (4) Complications rare but possible (dry eyes, halos, regression). (5) Reading glasses still needed eventually (presbyopia after 45). (6) Best for: stable prescription, age 25-45, healthy eyes, lifestyle benefits valued. Worst for: thin corneas, severe prescriptions, eye conditions. Try contact lenses first to test life without glasses.

Quick example

With surgery cost of 4,000 and annual glasses cost of 150 (plus annual contacts cost of 200 and current age of 35), the result is 11.4 years. Change any figure and watch the output shift — it's often more useful to see the pattern than to memorise the formula.

Which inputs matter most

You enter Surgery Cost (both eyes), Annual Glasses Cost, Annual Contacts Cost, and Current Age. Not every input has equal weight. Adjusting one input at a time toward extreme values shows which ones move the result most.

What's happening under the hood

Break-even years = surgery cost / annual eyewear savings. Lifetime = savings - surgery. The formula is listed in full below. If the number looks off, you can retrace the calculation by hand — that's the point of showing the working.

Why see the number at all

Small recurring spending is invisible by design — every individual transaction is forgettable. Compounded over years, the total often surprises. Seeing the figure doesn't mean you typically need to cut the spending; it just makes the trade-off conscious.

What this doesn't capture

The tool prices the money; it can't weigh the enjoyment. A coffee habit, gym membership, or streaming bundle might cost what the math says but deliver value that's harder to quantify. Use the number to make the trade-off visible — the decision is yours.