PRESBYOPIA IS A NEGOTIATION — PLAN IT LIKE ONE.

Every presbyopic strategy trades distance clarity for near function. The difference between a delighted patient and a reversal is candidate selection and expectation management — which is exactly where RLES AI does its work.

CANDIDATE SCREENING BEFORE STRATEGY

• Ocular dominance — and its strength, tested with the +1.50 D suppression method, because weak dominance predicts intolerance
• Anisometropia tolerance, absolute exclusion for strabismus or suppression history, scotopic pupil size against the planned profile
• Dry eye status (an unstable surface ruins multifocal optics first), occupation and night-driving demands
• A contact-lens monovision trial of 1–2 weeks is strongly advised before any cornea is touched

THE THREE ROADS, MAPPED TO YOUR DEVICES

PRESBYOND (Zeiss MEL 90 via CRS-Master),^[1] PresbyMAX (SCHWIND AMARIS)^[2][3] and classic mini-monovision on any excimer platform — the module opens only the roads your registered devices can actually deliver, because the blended-vision profiles are computed by the manufacturers' own planning software. Near targets are age-based (−1.00 to −1.50 D by decade); full monovision beyond −2.50 D is not advised, and published tolerance and reversal figures^[4][5] accompany each method so the patient hears numbers, not adjectives.

THE SAME SAFETY ENGINE UNDERNEATH

Every presbyopic plan passes the identical tissue budget — PTA, RSB, RCT, post-op K window — as any refractive case. A blended-vision profile that violates a safety floor is a violation, however elegant the optics.

FREQUENTLY ASKED QUESTIONS