range of motion in ocular implants following enucleation: hydroxyapatite vs porous polyethylene (medpor)

purpose: to compare the range of motion of hydroxyapatite (ha) and porous polyethylene (medpor) ocular implants in enucleated eyes. methods: this comparative study was performed on records of 34 patients who underwent unilateral enucleation and implantation of hydroxyapatite (13 cases) or medpor (21 cases). the two groups were compared regarding age, gender, cause of enucleation, laterality, and movement. results: patients were male in 55.9%. mean age of patients was 29.7 year (1-61 years). the most common cause of enucleation was trauma (55.9%) and the most common complication was mucopurulent discharge (14.7%). there was no case of extrusion, migration or exposure. moderate to good motility was achieved in 89.3% of patients in the medpor group and 86.6% in the ha group. there was no statistically difference between the two group regarding upward movement (p=0.68), downward movement (p=0.62), adduction (p=0.17) and abduction (p=0.65). conclusion: medpor and hydroxyapatite ocular implants are comparable regarding range of motion.