Original Article

Iris-Claw Phakic Anterior Chamber Lenses in Very High Myopia: A Three-Year Follow-up - Original Article


  • Levent Akçay
  • Ayşin Tuba Kaplan
  • Burçak Erdoğan
  • Ömer Kamil Doğan

Received Date: 30.01.2010 Accepted Date: 09.04.2010 Turk J Ophthalmol 2010;40(3):165-170


To evaluate the long-term results of iris-claw phakic intraocular lens (IOL) implantation in highly myopic patients.

Material and Method:

68 eyes of 34 myopic patients were included in the study. All patients underwent implantation of iris-claw phakic IOL with an optic part of 6 mm in diameter and overall length of 8,5 mm (Artiflex /Veriflex). All surgeries were performed under local anesthesia. During each visit, refraction, visual acuity, intraocular pressure (IOP), endothelial cell changes and complications were evaluated.


The mean age of the patients was 29.1±7.1 (range, 19-45) years. In 36 out of 68 eyes, the Artiflex lens was implanted, and in 32 eyes - the Veriflex IOL. The mean follow-up time was 36 months. Before the surgery, the mean spherical refraction of the patients was -11.5±8.73 D (range, -7.0 to -18.0 D), the mean spherical equivalent (SE) was -12.1±2.2 D (range, -7.5 to -17.5 D), and the mean best-corrected visual acuity (BCVA) was logMAR 0.35±0.13. Three years after surgery, the mean spherical refraction was -0.53±0.78 D, the mean SE was -1.12±0.79 D, and the mean BCVA was log MAR 0.22±0.18. The BCVA was maintained in 10 eyes (14.7%), while 57 eyes (83.87%) gained 1 or more lines of Snellen BCVA and a loss of 2 lines BCVA occurred in one eye (1.47%). The mean corneal endothelial cell loss was 9.86%. During the follow-up visits, one eye (1.47%) had IOP elevation, three eyes (4.4%) had decentration, seven eyes (10.2%) had pupil ovalization and pigment dispersion on the anterior surface of the lens, and in one eye (1.47%) choroid neovascularization was observed.


Iris-supported phakic anterior chamber IOL implantation in highly myopic patients provides satisfactory visual outcomes and patient comfort.

Keywords: Iris-claw lens, Artiflex, Veriflex, high myopia

Full Text (Turkish)