Nulens iol accommodating
Perhaps this will change now that that the FDA and American Academy of Ophthalmology are working to establish extended depth of focus guidelines.
s an inevitable consequence of the aging process, all humans lose the ability to seamlessly adjust the focus of vision from distance to near, introducing the “heartbreak of presbyopia.” This phenomenon makes even the most trivial visual task at near next to impossible.
In youth, the human eye can induce up to 15 D of near focus, allowing functional vision as close as 6.7 cm in 350 milliseconds.
Understanding the mechanism of lens shape change in accommodation has become essential to the general ophthalmologist as the array of intraocular lenses (IOLs) designed to restore ciliary body/lens capsular-generated accommodation, under FDA scrutiny, grows.
The designers of these lenses all assume that the aphakic ciliary body will continue to function interchangeably from one eye to the next with predictability over time — an assumption that remains unproven.