Linking changes in macular thickness post cataract surgery with post-operative visual acuity

Area of Science:

• Ophthalmology
• Surgical Science

Background:

• Cataract surgery is a common procedure with high success rates.
• Cystoid Macular Edema (CME) is a frequent complication impacting post-operative vision.
• Understanding macular changes post-surgery is crucial for managing visual outcomes.

Purpose of the Study:

• To evaluate changes in macular thickness after Small Incision Cataract Surgery (SICS).
• To correlate macular thickness with visual acuity in the post-operative period.
• To assess the incidence and impact of Cystoid Macular Edema (CME) on vision.

Main Methods:

• Prospective study involving 100 patients undergoing SICS.
• Pre-operative and post-operative macular Optical Coherence Tomography (OCT) scans were performed.
• Visual acuity was measured at one week and four weeks post-surgery.

Main Results:

• Mean macular thickness increased at one week post-op (254.28 ± 26.68 µm) compared to pre-op (205.14 ± 35.65 µm).
• Macular thickness decreased by the fourth week (224.53 ± 26.73 µm), nearing baseline.
• Visual acuity improved to >6/9 in 70% of patients at one week and 96% by four weeks.

Conclusions:

• Post-operative visual decline is often linked to transient macular edema.
• Macular edema following SICS typically resolves within four weeks.
• Most patients achieve significant visual recovery after cataract surgery, despite temporary edema.