Compare

Specialty contact lenses, side by side

Six lens types, compared on the things that actually decide between them: what the lens rests on, how much corneal irregularity it corrects, whether it helps a dry eye, how hard it is to handle, and what it costs to keep wearing. Below the table are detailed head-to-head comparisons.

Specialty contact lens types compared
 Custom softCorneal GPHybridScleralOrtho-kProsthetic
Rests onCorneaCorneaCornea + conjunctivaSclera onlyCornea, overnightCornea
Corrects irregular corneaPartlyYesYesYes, most completelyNoNo
Comfort on day oneHighestLowestGoodGoodWorn asleepHighest
Adaptation neededNone1–2 weeksShortShortDays to stabiliseNone
Helps severe dry eyeNoNoNoYesNoNo
Handling difficultyLowestLowModerateHighestModerateLowest
Typical lifespanMonthsA year or more~6 monthsA year or moreA year or more~1 year
Daily consumablesSolutionSolutionSolutionSolution + salineSolutionSolution
Mainly fitted forHigh astigmatism, mild keratoconusKeratoconus, irregular astigmatismKeratoconus, irregular corneasAdvanced irregularity, dry eyeMyopia, myopia controlIris damage, glare

Lifespans and adaptation times are typical patterns, not promises. Your fitter sets both for your eyes and your lens design.

Head to head

The two comparisons people most often need to make.

How to read the table

One pattern runs through all of it. The further the lens's support moves away from the cornea, the more irregularity it can correct — and the more handling it asks of you in return.

A soft lens rests entirely on the cornea and conforms to it, so it corrects irregularity least. A corneal rigid lens rests on the cornea but holds its own shape, so the tear layer beneath it cancels the irregularity. A hybrid moves part of its support out onto the conjunctiva. A scleral moves all of it, clearing the cornea completely — which is why it works on corneas nothing else fits, and why it is the hardest to insert.

Two lens types in the table are not really competing with the others. Ortho-k is worn overnight to reshape a regular cornea, and prosthetic lenses address appearance and glare rather than corneal shape.