Purpose:
To quantify the rate of idiopathic macular hole progression from presentation and identify factors that may influence stratification and urgency for surgical listing based on the initial optical coherence tomography scans.
Methods:
The minimal linear diameter (MLD), base diameter (BD), and hole height on nasal and temporal sides of idiopathic macular hole were measured on spectral domain optical coherence tomographies, on initial presentation and just before surgery. Mean hole height, hole height asymmetry (absolute difference between nasal and temporal height), MLD/BD, and MLD change per day (MLD/day) were calculated for each patient. Multivariable linear regression analysis with MLD/day as the dependent variable was performed to identify significant risk factors for MLD progression. Minimal linear diameter was grouped to quintiles: 1: ≤290 µm, 2: >290 µm and ≤385 µm, 3: >385 µm and ≤490 µm, 4: >490 µm and ≤623 µm, and 5: >623 µm.
Results:
In 161 eyes (157 patients), we report significant associations with MLD/day: 1) MLD/BD (P = 0.039) (i.e., wide BD relative to MLD lead to faster progression of MLD), 2) hole height asymmetry (P = 0.006) (larger absolute difference between nasal and temporal hole height lead to faster progression), and 3) days between scans (P