Abstract
Purpose:
To determine the effect of (1) the duration of macula-off rhegmatogenous retinal detachment (RRD) and (2) the preoperative distance between the macula and retinal pigment epithelium (height) on the recovery of visual function.
Methods:
Patients with a primary macula-off RRD of 24 hours to 6 weeks duration (n = 46) were prospectively included. The height of macula-off detachment was determined using ultrasonography. At 12 months postoperatively, best corrected visual acuity (BCVA), contrast acuity, color confusion indexes (CCI) were obtained. Forward stepwise regression analysis was performed.
Results:
Median duration of macular detachment was 7 days (range 2 - 32), and mean height was 1.31 mm. ± SD 1.14. Recovery of visual function was, mean LogMAR BCVA 0.30 ±SD 0.31, median LogMAR contrast sensitivity 1.5 (range 0.15-1.70), median CCI saturé 1.13 (range 1.00 - 2.66) and median CCI desaturé 1.76 (range 1.00 - 3.20). A shorter duration of macular detachment was correlated with a better visual recovery, CCI saturé (p < 0.005), LogMAR BCVA (p = 0.011). Also, reduced height was correlated with a better visual recovery, LogMAR BCVA (p = 0.018), and LogMAR contrast acuity (p = 0.021)). Subgroup analysis of patients with macular detachment of ≤7days (n=25), showed that reduced height was correlated with better recovery of contrast acuity (p = 0.024). In this subgroup, duration was not correlated with better visual recovery (p > 0.05). In patients with macular detachment of more than 7 days (n=21), reduced height was correlated with better recovery of LogMAR BCVA (p = 0.006), and LogMAR contrast acuity (p = 0.004)). In this subgroup, duration was correlated with recovery of color vision (CCI desaturé (p = 0.049), and CCI saturé (p < 0.005)).
Conclusions:
In macula-off RRD patients, an increase in the duration or the height of macular detachment are associated with a worse recovery of visual function (visual acuity and contrast acuity). Recovery of color vision is worse in case of a longer duration (>7days) of macular detachment.
Keywords: 697 retinal detachment •
754 visual acuity •
585 macula/fovea