These results indicate that the CTR reduces undesirable postsurgical IOL movement for at least 60 days.

Increased forward shift of the posterior corneal surface is common after myopic LASIK and correlates with the residual corneal thickness and the ablation percentage per total corneal thickness. An excessively thin residual corneal bed or a large ablation percentage may increase the risk of iatrogenic complications.

Orbscan II may help predict actual IOP values after LASIK and avoid the misinterpretation of high IOPs as normal IOPs.

A 26-year-old woman with irregular astigmatism caused by ocular perforation became aphakic in the injured left eye 2 years after the initial trauma. The initial corneoscleral wound repair was performed without intraocular lens implantation. The patient's uncorrected visual acuity in the right eye was 20/20 and in the left eye, counting fingers at 50 cm. The vision in the left eye could not be corrected with a spectacle because of high corneal astigmatism so a rigid gas-permeable contact lens was tried. With a contact lens, the acuity improved to 20/80; however, the patient could not wear the lens because of intolerance and severe astigmatism. As an alternative, topography-guided ablation was performed to correct the corneal astigmatism. Treatment of the irregular central cornea reduced the astigmatism. Three months postoperatively, the corrected visual acuity was 20/20 with a refraction of +8.00 -1.50 x 26. This case indicates that topography-guided ablation can be a useful surgical method for correcting surgically induced irregular astigmatism.