ABSTRACT
Objective: To compare effectiveness of releasable transconjunctival sutures in 23 gauge vitrectomy and standard 20 gauge vitrectomy
Methods: This prospective comparative study was conducted in Department of Vitreoretinal Surgery, Al Ehsan Eye Hospital, Lahore from June 2016 to March 2017. It included 84 patients in total [Group-A: 42 patients underwent 23 gauge releasable suture vitrectomy; Group-B: 42 patients who underwent standard 20 gauge vitrectomy]. Pre operative and post operative best corrected visual acuity, surgical duration, pre and post operative intraocular pressure and complication profile was compared between two groups
Results: The leading cause for vitrectomy was vitreous haemorrhage. [Group-A; n=15 ;35.71%; Group-B; n=17; 40.47%]. There was statistically significant improvement in preoperative and postoperative BCVA in both groups [Group A: P-value < 0.05; Group B P-value < 0.05] but there was no significant difference in post operative BCVA between two groups at 3 months [P-value > 0.05]. Surgical time for 23G vitrectomy Group was statistically less than 20 G vitrectomy Group [51 +/-18 minutes for Group-A versus 78 +/- 13 minutes for Group-B; p-value < 0.05]. Visual analog score for pain / discomfort was also significantly less for Group-A than Group-B. There was no significant difference in intraocular pressures between the two groups
Conclusions: Releasable suture technique for small gauge vitrectomy is a safe and easily adaptable technique that has certain significant advantages over 20G absorbable suture vitrectomy
ABSTRACT
Objective: To evaluate the effectiveness and safety profile of combined phacoemulsification with 23G parstona vftrectomy when compared to pars plana vitrectomy alone in phakic patients
Methods: This study was performed at Al-Ehsan Eye Hospital [tertiary care eye hospital in Lahore, Pakistan] from January 2016 to August 2016. A total of 40 eyes in two equal groups of 20 eyes each, were enrolled in this prospective study. Group-A underwent combined phaco-vitrectomy, whereas Group-B underwent vitrectomy only for various vitreoretinal pathologies. We evaluated the safety of combined surgery, intra-operative and postoperative complications and short term surgical outcome
Results: The most common reason for vitreoretinal intervention was rhegmatogenous retinal detachment followed by vitreous haemorrhage in combined study population
There was statistically significant difference in best corrected visual acuity pre-operatively and post operatively within the groups and between the groups. The most significant immediate post operative observation in Group-A was enhanced anterior chamber inflammation as compared to Group-B, whereas most signification observation in Group-B was development of visually significant cataract [35%] at 6 months follow-up. There was no other significant sequel or complication difference between both groups
Conclusions: Combined phaco-vitrectomy is a safe and effective procedure with minimum complication profile and it avoids the need of subsequent cataract surgery
Subject(s)
Humans , Male , Female , Adult , Eye , Vitreous Hemorrhage , Tertiary Care Centers , Prospective Studies , Phacoemulsification , Retinal Detachment , Treatment OutcomeABSTRACT
To compare the viscosity of silicone oils made by different manufacturers by comparing the flow rates through a standard 23G millennium vitrectomy system. Quasi experimental study. Department of Ophthalmology, Lahore General Hospital Lahore, Pakistan during 2012. Viscosities of silicone oils of l000cs and 5000cs, manufactured by multinational / national manufacturers in Pakistan, were compared. Oils of 1000cs/500cs were placed in 20 ml syringes, marked randomly and placed in water-VVbaths at 25°C, to standardize the control environment. Each syringe was then attached to 23G millennium vitrectomy system and time taken to empty 9 ml of oils at pressures of 40 mrrtHg and 70 mmHg was noted. Oils of same centistokes manufactured by different manufacturers behaved differently in terms of their flowability and rates of emptying. The emptying times for l000cs oils ranged from 112.1 seconds to 144.4 seconds at 40 mmHg and 60.2 to 70.3 seconds at 70 mmHg, whereas corresponding figures for 5000cs were between 335.7 seconds and 802.0 seconds at 40 mmHg and between 169.6 seconds and 348.7 seconds at 70 mmHg. The differences at all levels were statistically significant [p< 0.001]. Silicone oils of similar centistokes behaved differently in terms of their rates of flow through a standard 23G vitrectomy system under standard conditions indicating better standardization of the viscosity of silicone oils available in the market
ABSTRACT
To evaluate the correlation between axial myopia and diabetic retinopathy. Cross-sectional study. Eye Department of Postgraduate Medical Institute, Lahore General Hospital, from August 2012 to February 2013. A total of 258 participants suffering from type-2 diabetic retinopathy were included. Axial length was measured by two optometrists using contact type ultrasound biometer. Colored retinal photographs, red free retinal photographs and Fundus Fluorescein Angiography [FFA] were performed on all patients using standard fundus camera. All fundus photographs and angiograms were independently reviewed and graded by two qualified vitreoretinal fellows. Out of 258 patients, 163 were males [63.2%] and 95 [36.8%] were females. Average age of patients was 56.30 +/- 7.57 years. Average axial length of right and left eyes were 23.16 mm and 23.15 mm respectively. There was statistically significant negative correlation between axial length and severity of diabetic retinopathy in the right eye, [Spearman correlation = -0.511, p = 0.0001] as well as the left eye [Spearman correlation = -0.522, p = 0.0001]. There is a protective influence of longer axial length of globe on the stage and severity of diabetic retinopathy. This study may help in modifying the screening protocol for diabetic retinopathy amongst patients of differing axial lengths