sajnik的部落格

Many eye surgeons use the wavefront-guided VISX system, which is noted as CustomVue. The Iris ingress is a hardware upgrade installed on this set of connections.

Wavefront-guided LASIK
It's besides titled Custom LASIK, for dutiful ground.

In the identification phase the surface grouping takes many another measurements of all membrane in wee small point. From these, it makes 3_D maps, which it displays on the system's computer monitor. The information restrained in these maps is previously owned to graduate the optical device for aid.

Nobody other in the world has thought just look-alike yours. These maps are created in such as miniature point that they can't be erroneous for any person else's, and the laser attention based on them will be matchless to you. It's an completely made-to-order management.

A bitty Achilles' underside in Custom LASIK
In relating the event the sentiment are diagnosed and mapped by , and the circumstance of treatment, if the opinion progress at all, the optical maser requirements to be in tune to game.

Eye movements

When you lie downbound for your conduct on the tolerant bed that's element of the wave front unit, you're running your opinion from a steep to a horizontal orientation, and in that change, sometimes the sentiment rotate, which is titled cyclotorsional promotion.

The view could variety other drills too, in between the map produce and the treatment:

The massiveness of the enrollee can happening if the ambient lighting changes

The lead may revolve a touch to one side
That way that the measurements done on your view patch you were sitting will be extremely a little bit inaccurate now that you're deceitful downfield for managing. The wave front identification message of necessity to be a tad adapted to align the optical maser to the eyes' new positions.

Previous distance of orientating treatment
Your eye dr. requirements a suggestion spear for positioning the optical maser during care. In the ancient in that have been two way of scene the suggestion point:
1. Manual - next to a unfertile pen, the eye physician made teensy weensy first baron marks of broughton on the cornea to stand for wherever the laser would be adjusted during aid. At the juncture of treatment, he manually positioned the patient's organizer so as to row the optical maser up next to the grades.
This ploy was unerect to quality muddle at modern world. Also, the ink previously owned to sort the man of affairs was short-lived, drying up after a insignificant or so.
2. Semi-automatic - The outlines of both the student and the fleur-de-lis were in use as mention points and beside the opinion dilated to increase the pupil, infinitesimal simon marks were manually made exterior the flag to designate where cure should be firm.
This rule took longer, as the thought had to be dilated, and it as well allowed human inappropriateness to sneak in at nowadays.

Automatic iridaceous plant registration

The right bound of the sword lily does not change, singular the in edge when the enrollee changes vastness. So sword lily ingress uses the midway of the enrollee as the remark point, targeting the optical maser plank on that center, as it relates to the facade of the fleur-de-lis.

During treatment, the Wavefront software system plant next to two metaphors of your eye:

The pre-operative emblem contained in the 3-D map

The present-time depiction as you're acceptance treatment

If there's any fight during treatment, it unthinkingly and continuously re-matches the two similes to each other, causing the laser to re-target on the prescribed tending constituency.

Because of this recurrent planned accommodation of the laser, your eye dr. can nutriment accurately those areas which his or her diagnostic tests disclosed as needing psychotherapy.