Patients who were in the range 44 to 80 years, who had to undergo vitrectomy operation with different diagnosis were included in the study. Each participant had a complete ophthalmological examination which included best-corrected visual acuity (BCVA), slit lamp examination with and without pupil dilation, intraocular pressure (IOP) measurement with applanation tonometry and stereoscopic evaluation of the ocular fundus before decision of operation.