High Myopia Clinical Trial
Official title:
Changes of the Corneal Endothelial Cell Count After Artisan Phakic Intraocular Lens Implantation
NCT number | NCT03266354 |
Other study ID # | CECCAPIOL |
Secondary ID | |
Status | Completed |
Phase | |
First received | |
Last updated | |
Start date | October 1, 2017 |
Est. completion date | January 1, 2020 |
Verified date | May 2020 |
Source | Assiut University |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
the investigator will evaluate the change in endothelial cell count in eyes implanted with the iris-claw phakic Artisan lens for treatment of moderate to high myopia using specular microscopy
Status | Completed |
Enrollment | 12 |
Est. completion date | January 1, 2020 |
Est. primary completion date | December 1, 2019 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 20 Years and older |
Eligibility | Inclusion Criteria: - an age greater than 20 years, stable myopia with a variation in spherical equivalent of less than -0.50 diopter (D) during the 12 month preoperative period, a normal anterior segment with an ACD (i.e., the area between the corneal endothelium and the central anterior lens capsule) greater than 3.00 mm, an endothelial cell count of 2000 cells/mm2 or greater, no corneal, pupil, or iris abnormalities; and no history of glaucoma and chronic or recurrent uveitis , having contraindications to laser in situ keratomileusis based on pachymetric data or other corneal shape characteristics, and an intraocular pressure of 20 mm Hg or less. Exclusion Criteria: - an ACD less than 3.0 mm, history of ocular surgery, glaucoma, chronic uveitis, or preexisting ocular pathologic features or abnormalities. |
Country | Name | City | State |
---|---|---|---|
Egypt | Fculty of medicine, Assiut university | Assiut |
Lead Sponsor | Collaborator |
---|---|
Assiut University |
Egypt,
Benedetti S, Casamenti V, Benedetti M. Long-term endothelial changes in phakic eyes after Artisan intraocular lens implantation to correct myopia: five-year study. J Cataract Refract Surg. 2007 May;33(5):784-90. — View Citation
Joyce NC. Cell cycle status in human corneal endothelium. Exp Eye Res. 2005 Dec;81(6):629-38. Epub 2005 Jul 28. Review. — View Citation
Laing RA, Sandstrom MM, Leibowitz HM. In vivo photomicrography of the corneal endothelium. Arch Ophthalmol. 1975 Feb;93(2):143-5. — View Citation
Maurice DM. Cellular membrane activity in the corneal endothelium of the intact eye. Experientia. 1968 Nov 15;24(11):1094-5. — View Citation
Menezo JL, Aviño JA, Cisneros A, Rodriguez-Salvador V, Martinez-Costa R. Iris claw phakic intraocular lens for high myopia. J Refract Surg. 1997 Sep-Oct;13(6):545-55. — View Citation
Menezo JL, Cisneros AL, Rodriguez-Salvador V. Endothelial study of iris-claw phakic lens: four year follow-up. J Cataract Refract Surg. 1998 Aug;24(8):1039-49. — View Citation
Menezo JL, Peris-Martínez C, Cisneros AL, Martínez-Costa R. Phakic intraocular lenses to correct high myopia: Adatomed, Staar, and Artisan. J Cataract Refract Surg. 2004 Jan;30(1):33-44. — View Citation
Mishima S. Clinical investigations on the corneal endothelium. Ophthalmology. 1982 Jun;89(6):525-30. — View Citation
STOCKER FW. The endothelium of the cornea and its clinical implications. Trans Am Ophthalmol Soc. 1953;51:669-786. — View Citation
Waring GO 3rd, Bourne WM, Edelhauser HF, Kenyon KR. The corneal endothelium. Normal and pathologic structure and function. Ophthalmology. 1982 Jun;89(6):531-90. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Changes in the Corneal endothelial cell count after Artisan phakic intraocular lens implantation | specular microscopy will be performed on a number of myopic patients before and after implantation of the rigid Artisan iris-fixated pIOL to analyze the change in corneal endothelial cell count. | 5 minutes |
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