Objective      To investigate the early complications of posterior chamber implantable collamer lens (ICL) implantation for the treatment of high myopia

and explore the reasons causing the complications.       Methods      Forty patients (78 eyes) who underwent ICL implantation in our hospital from April to September 2014 were recruited. During 3-month follow-up

uncorrected visual acuity (UCVA)

best corrected visual acuity (BCVA)

spherical equivalent (SE)

intraocular pressure (IOP)

corneal endothelial cell count and lens vault were observed to assess the clinical effectiveness

and the complications and treatment results were recorded.       Results      After operation

UCVA and SE were improved significantly (P0.05)

but there were no significant differences in the IOP

UCVA

SE

lens vault and corneal endothelial cell count in 1 week

and 1 and 3 month after operation (P0.05). After laser iridectomy

high intraocular pressure symptoms appeared in 35 eyes within 24 h. In the next day

the intraocular pressure was recovered to the normal level after drug treatment. Only one case of high intraocular pressure (22-30 mmHg) lasted for 8 d. Retinal neurepithelium layer detachment was observed in 2 eyes

and 1 eye was accompanied by lamellar macular holes. After operation

the lenses of all the patients showed iris pigmentation

but there was no significant impact on vision. Postoperative visual disturbances mainly were night glare.       Conclusion      ICL implantation as intraocular refractive surgery still has some risks. Therefore

to improve the preoperative clinical examination

strictly grasp the operation indications and treat the early complications in time can effectively reduce the risk of adverse events and improve surgical safety.