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Category: Volume 07 Issue 06 June 2019
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Title: Foveal thickness alteration following uncomplicated cataract surgery- An OCT based study

Authors: Dr Pragati Garg, Dr Akansha Sharma, Dr Ritesh Waghrey

 DOI: https://dx.doi.org/10.18535/jmscr/v7i6.133

Abstract

Introduction: Cataract is the commonest cause of treatable blindness world-wide, and surgery is the only fruitful modality of its treatment for visual recovery.Clinically macular edema is one of the reported complication after cataract surgery due to inflammatory response. This macular edema could have an effect on final visual acuity so this study was undertaken to evaluate the clinical or sub-clinical alteration in macular thickness after cataract surgery and its effect on visual acuity.

Materials and Method: 180 cataractous eyes posted for surgery were enrolled for study after following the exclusion criteria. All patients underwent OCT macular scan analysis for the central 1mm macular zone to look for macular edema and best corrected visual acuity pre operatively followed by the 1stpost op day, 4th week and 12th week after cataract surgery.

Results: The difference between the preoperative and post operative central subfield and average macular thickness was highly significant after the 4th week of surgery (p=<0.001) while the difference between the preoperative and post operative macular volume (mm3) was found to be highly significant after the 4th and 12th week of surgery (P<0.001). Despite these findings, visual acuity increased significantly by 4th and 12th week of surgery.

Conclusion: Post cataract surgery there occurs an increase in macular thickness which is  either clinically or tomographically evident but has no statistically significant correlation with the final visual outcome.

Keywords: Cataract, macular thickness, optical coherence tomography

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Corresponding Author

Dr Akansha Sharma

Junior Resident, Department of Ophthalmology, Era’s Lucknow Medical College and Hospital, Lucknow