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Monovision and Mini-Monovision Planning Strategies

We discussed monovision (one eye for distance, one for near) earlier – it’s a full correction difference, often around 2.0 diopters difference between eyes. Mini-monovision is a slight twist: it sets one eye for distance and the other eye just a little near-sighted, but not too much (maybe 0.75 to 1.25 diopters). The idea is to preserve more depth perception and sharp distance vision while still giving you some intermediate/near boost. In practice, mini-monovision might let you do most computer work or read large print without glasses, although for fine print you might still need readers. Who chooses which? Full monovision is for those who really want maximal independence from glasses (especially reading) and have shown they can adapt to that larger difference. Mini-monovision is for those who might be driving a lot or are sensitive to imbalance but wouldn’t mind, say, wearing very mild readers for prolonged reading. Planning either strategy involves deciding the target prescriptions for each eye. Often we’d make your dominant eye the distance eye (because it tends to be the one your brain prefers for sharp far vision) and the non-dominant eye slightly nearsighted for near tasks. In consultation, we’ll test dominance and maybe do a contact lens trial. The beauty is that with cataract surgery we can build this into your lens choices (for example, put a slightly higher power lens in the reading eye). Discussing your comfort with this concept and maybe trying it in advance ensures we pick the right amount of monovision – whether mini or full – tailored to your daily needs and tolerance.

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