OBJECTIVE: To determine the risk factors, characteristics and presentation of Giant Retinal
DESIGN: Descriptive case-series study.
SETTING: Al-Ibrahim Eye Hospital, Isra Postgraduate Institute of Ophthalmology, Karachi; from
January 2001 to July 2007.
METHODS: All patients diagnosed as having Giant Retinal Tear (GRT) in the Surgical Retina
Clinic, were included in the study. The details of patients demographics, ocular history, risk
factors, refractive status, ocular examination, systemic examination, treatment offered and final
outcome were recorded in a specially designed proforma.
RESULTS: A total number of 42 eyes of 38 patients with GRT was included in the study. The
causative factors in our study were vitreo-retinal degeneration, blunt ocular trauma and complicated
cataract surgery. Myopia was the most common ocular risk factor. Most of the patients
presented to our hospital after 4 weeks of onset of symptoms with total retinal detachment, advanced
proliferative vitroretinopathy and poor visual acuity. Pars Plana Vitrectomy with Silicone
oil tamponade, with or without Scleral Buckling was performed in 35 eyes.
CONCLUSION: The major risk factors for GRT are peripheral retinal degenerations, high myopia,
ocular trauma, GRT in the fellow eye, family history of retinal detachment, complicated cataract
surgery and connective tissue disorders. Various socio-economic issues and inadequate
patient counseling are responsible for late presentation of patients that leads to extensive PVR.
Key words: Giant Retinal Tear, Vitreo-retinal degeneration, PVR, RD.