Micropsia and metamorphopsia in the re‐attached macula following retinal detachment

Abstract

Macular dysfunction was studied in 7 patients recovering after surgery for a retinal detachment involving the macula. The degree of disturbed size perception (dysmetropsia) and metamorphopsia was measured in parallel with letter and grating acuity in patients during the recovery process for time periods up to 47 months following successful re-attachment. The demonstration of dysmetropsia, quantitatively assessed by a matching technique, in several patients indicate that the spatial density of the macular photoreceptors changes following detachment. In 3 patients out of 7 a longstanding micropsia was present. The degree of micropsia was not related to the degree of metamorphopsia. Subclinical/clinical macular oedema is considered to be the most probable cause for the increased separation of the macular photoreceptors. The study indicates that quantitative measurement of dysmetropsia gives valid information about receptor displacement and of unilateral subclinical macular oedema. The relations between letter acuity, grating acuity and micropsia gives certain information about the role of changed receptor separation as a cause of impaired central vision, and we found that incomplete recovery of acuity partly can be due to long-standing separation of foveal receptors.

Prevalence and predictors of metamorphopsia after successful rhegmatogenous retinal detachment surgery: a cross-sectional, comparative study

“…In another series consisting of six eyes with macula-off RRDs, all patients presented with metamorphopsia, which faded with time but persisted in four eyes (66.67%) at 5 years to 6 years after scleral buckling 6. Similarly, in a study7 that included seven eyes with macula-off RRDs, during the postoperative period all seven patients showed metamorphopsia of varying degrees. And this symptom remained in five eyes (71.43%) at 18–27 months after scleral buckling surgery.…”

Comparative analysis of metamorphopsia and aniseikonia after vitrectomy for epiretinal membrane, macular hole, or rhegmatogenous retinal detachment

“…Previous studies have shown that visual acuity, metamorphopsia, and aniseikonia improve over a duration of several years in eyes with ERM, eyes with MH, and eyes with RRD. [9,[34][35][36] Other limitations of the study were its relatively small sample size and the retrospective design. Nevertheless, the present study revealed differences in postoperative visual function changes in eyes with distinct macular morphologies.…”

Changes in aniseikonia and influencing-factors following successful macula-off retinal detachment surgery

“…Sjöstrand et al . investigated aniseikonia after surgery for macula-off RD and found that micropsia was present in 3 of 7 patients and transient CME could be detected in 2 of these cases 15 . We previously investigated aniseikonia and microstructure after RD surgery, and reported that 21% of eyes with micropsia exhibit CME 7 .…”