There is a possibility that these visual disturbances may be significant enough that a patient may request removal of the lens. Severe subjective visual disturbances (e.g., glare, halo, starburst, hazy vision) may occur after device implantation. The lens should not be implanted if appropriate intraocular support of the lens is not possible. Compared to an aspheric monofocal or monofocal toric IOL, the lens provides improved intermediate and near visual acuity, while maintaining comparable distance visual acuity.Ĭontraindications/Warnings/Precautions: Patients with dilated pupil size less than 7.0 mm and patients with a history of retinal disease including but not limited to, high myopia, diabetes, macular disease, sickle cell disease, retinal tear, retinal detachment, retinal vein occlusion, ocular tumor, uveitis, and patients who are predisposed to experiencing retinal disease in the future, are contraindicated for use of the IC-8 Apthera IOL. The lens mitigates the effects of presbyopia by providing an extended depth of focus. The refractive target for the IC-8 Apthera IOL should be -0.75 D. The device is intended for primary implantation in the capsular bag, in the non-dominant eye, after the fellow eye has already undergone successful implantation (uncorrected distance visual acuity 20/32 or better and best-corrected distance visual acuity 20/25 or better) of a monofocal or monofocal toric IOL that is targeted for emmetropia. Indications: The IC-8 Apthera IOL is indicated for unilateral implantation for the visual correction of aphakia and to create monovision in patients of age 22 or older who have been diagnosed with bilateral operable cataract, who have up to 1.5 D of astigmatism in the implanted eye, and who do not have a history of retinal disease and who are not predisposed to experiencing retinal disease in the future. I'm not sure if there is a name for it, but I love it when you have a strip of blur both at the front and behind your subject, so you can really see the "slice" of focus. To get blur at the front, you'll need to have something close to the lens in front of your subject.Caution: Federal law restricts this device to sale by or on the order of a licensed physician.
4) Make a Bokeh Sandwich!ĭid I just make that term up? I think i might have :) That's how shallow the focus area can be! Step back a bit to get more of an area in focus even when shooting wide open. For example, if you are shooting a close up of a face whilst shooting wide open, you could potentially get the eyelashes in focus and not the eye - even if you are toggling your focal points. If you are right up close to your subject, the area of focus will be teeny tiny, and really, really difficult to nail. Remember that the closer you are to your subject, the less of an area you will get in focus. Now we've covered that, let's get a crackin' with the tips! Here's some things to keep in mind when shooting wide open.ģ) Be Careful of Your Distance from Subject However, you absolutely don't NEED to shoot wide open to achieve that blurred look, as you will get blur at smaller apertures too (and find it easier to nail focus) but sometimes it's nice to really maximise that blur :) I personally love that look, where the subject is crisp and sharp, but all around it is soft and blurred. Shooting wide open means that you will have a extremely shallow depth of field, and therefore a smaller area of your image in focus. When you shoot at the largest aperture for your lens, that is called shooting wide open!įor the purposes of this tutorial, I'm talking about shooting with a very large aperture, regardless of what the actual F number says or whether you could have stopped down a little more :) Why Shoot Wide Open? For example, a kit lens that came with your camera might only stop down to F3.6, but another lens will stop down to F1.4. As aperture is controlled by your lens, not by your camera, this will vary from lens to lens. In case you haven't heard of this term before (or have, but not sure what it means) shooting wide open just means that you are shooting at the largest aperture your lens will allow.
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