Normal Vision Development in Adults 40 to 60
Nearly everyone will experience presbyopia beginning in their late-30s to mid-40s. The eye’s lens (located behind the pupil) becomes less flexible with age, making it harder to read and perform other "near" tasks. One sign of presbyopia is when you find that you have hold reading materials farther away from your face in order to see them clearly. If presbyopia is left uncorrected, it can cause eye fatigue and headaches.
Most people need reading glasses or another vision correction strategy to deal with presbyopia. Also, people who have cataracts removed (usually a bit later in life) may chose intraocular lenses (IOLs) that correct for presbyopia.