Sharjeel Sultan, Nisar A Siyal, Nargis Nizam Ashraf, Rasheed Khokar.
Assessment of sub retinal fluid using optical coherence tomography after surgery of macula-off Rhegmatogenous retinal detachment.
Pak J Surg Jan ;34(3):229-33.

Objective: To assess the presence and persistence of submacular fluid using optical coherence tomography (OCT) after clinically successful vitrectomy surgery of macula-off Rhegmatogenous retinal detachment. Material and Method: This was the prospective observational study carried out at operation theatre, Eye unit II, Civil hospital Karachi - Pakistan from September 2017 to March 2018. All patients went through the detail pre- and post-operative clinical examination and optical coherence tomography (OCT) scan of the macula. Patients who observed with sub retinal fluid on OCT at 6 weeks after surgery underwent follow-up with repeat of the study investigation at 3rd and 6th months after surgery. If no abnormality was seen on OCT at the 6th week examination, no further investigation was undertaken. Demographic data and detachment characteristics were collected retrospectively from the patient medical record. Results: Total of 50 patients were recruited with mean age of 42 ± 8 years. 08 of these had sub retinal fluid (SRF) on macula diagnosed on optical coherence tomography performed at 6th weeks after anatomically and clinically successful retinal detachment surgery. Out of these 8 patients, sub retinal fluid was present in 5 patients on follow up OCT after 3 months of surgery and this sub retinal fluid remained there in 2 patients on 6 months follow up optical coherence tomography. Conclusion: Sub retinal fluid (SRF) after pars plana vitrectomy (PPV) is the uncommon troublesome and disturbing cause of persistent decrease visual acuity. OCT is a noninvasive real-time imaging system that can be used to investigate retinal structures as well as the shallow sub retinal fluid.

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