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Inter-ocular and inter-visit differences in ocular biometry and refractive outcomes after cataract surgery
Hyun Sup Choi1, Hyo Soon Yoo1, Yerim An1
1Department of Ophthalmology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seongan-ro 150, Kangdong-gu, Seoul, 05355, South Korea.
Scientific Reports
|September 8, 2020
Summary
Large differences in eye measurements before cataract surgery are linked to poorer refractive outcomes. Optimizing biometry measurements can improve surgical results and patient vision.
Area of Science:
- Ophthalmology
- Biometry
- Refractive Surgery
Background:
- Accurate ocular biometry is crucial for predictable refractive outcomes in cataract surgery.
- Inter-ocular and inter-visit variations in biometry measurements can introduce uncertainty.
Purpose of the Study:
- To investigate the relationship between inter-ocular and inter-visit differences in ocular biometry and refractive outcomes after cataract surgery.
- To determine if reduced inter-ocular biometry differences correlate with improved postoperative refractive accuracy.
Main Methods:
- Retrospective review of 279 patients undergoing phacoemulsification.
- Ocular biometry (axial length, corneal power, EIOLP) performed twice: 1-4 weeks pre-op and on the day of surgery.
- Patients categorized into groups based on inter-ocular biometry consistency across visits.
Main Results:
- Group P (persistent inter-ocular differences) showed significantly greater postoperative Mean Absolute Error (MAE) compared to other groups.
- Group D (diminished inter-ocular differences) demonstrated a trend towards smaller MAE with the second measurement, nearing statistical significance.
- Large inter-ocular biometry differences were associated with poorer refractive outcomes.
Conclusions:
- Significant inter-ocular biometry differences are associated with reduced refractive predictability after cataract surgery.
- Measurements exhibiting smaller inter-ocular differences, especially when inter-visit variations exist, correlate with better refractive outcomes.
- Emphasizing consistent biometry measurements may enhance refractive success in cataract surgery.
