The pupil of the eye is an aperture (hole) in the iris that limits a light-bearing image coming through on its way to being focused on the retina. It typically bounces back and forth between a slight constriction and slight dilation (called "hippus"). The iris (the...
There is no single "best intraocular lens," whether single vision, toric, or presbyopia-correcting. All IOLs vary in optical performance, with incremental improvements over time from advances in technology. What is the "best" IOL for a particular individual often depends on the particularities of that patient's ocular anatomy,...
No. But there are indeed many connections between the eye and our hair & fingernails. The cornea of the eye is made of something almost identical to the keratin that is the basic "stuff" of hair and fingernails. In fact, the "k" in LASIK stands for...
Almost no association at all. "Blind" is an emotionally loaded word that has no place in Ophthalmology (except perhaps to scare a patient who is non-compliant with medical treatment). The degree of focusing problem a person has, can and should never be called "legally blind"...
Presbyopia is the slow, but progressive loss of near vision due to the gradual hardening of the natural lens of the eye. This hardening irreversibly reduces the lens' ability to change shape (accommodation). It is surprising but we have all lost about 50% of our accommodation by...
