Horizontal and vertical micropsia following macula-off rhegmatogenous retinal-detachment surgical repair
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Dysmetropsia or distorted image size perception (smaller: micropsia; larger: macropsia) is known to occur after successful surgical re-attachment for macula-off rhegmatogenous retinal detachment. However, the vertical and horizontal components of size distortion have not been previously quantified separately. The purpose of this article is to describe horizontal and vertical dysmetropsia occurring in patients following pars plana vitrectomy and gas treatment (octafluoropropane, C3F8 or sulfur hexafluoride, SF6) for macula-off rhegmatogenous retinal detachment.
Material and methods
Four patients (mean±SD, 59±8 years; three women and one man) who had had pars plana vitrectomy and gas treatment for macula-off rhegmatogenous retinal detachment 6–7 months earlier underwent ocular examination, best corrected visual acuity test, threshold horizontal and vertical dysmetropsia measurement using a computerised version of the New Aniseikonia Test, slit-lamp examination and optical coherence tomography of the macula.
All patients had binocular visual complaints including difficulty judging distances or reading, rivalry or asthenopia. The logMAR visual acuity (mean±SD) in the operated eye was 0.52±0.199 and 0.02±0.171 in the unaffected eye. All patients perceived the image as smaller (micropsia) with the affected eye, with differences ranging from −9 to 0%. Four patients showed 3% or more size difference between horizontal and vertical meridians.
Dysmetropsia does occur in symptomatic patients following successful surgical repair of macula-off rhegmatogenous retinal detachment by pars plana vitrectomy and gas treatment. The effect on image size is heterogenous across the retinal area affected.
- Anderson C, Sjostrand J (1981) Contrast sensitivity and central vision in reattached macula .Acta Ophthalmol (Copenh) 59:161–169
- Curtin BJ, Linksz A, Shafer DM (1959) Aniseikonia following retinal detachment. Am J Ophthalmol 47:468–471
- Katsumi O, Tanino T, Hirose T (1986) Effect of aniseikonia on binocular function. Invest Ophthalmol Vis Sci 27:601–604
- Lovasik JV, Szymkiw M (1985) Effects of aniseikonia, anisometropia, accommodation, retinal illuminance, and pupil size on stereopsis. Invest Ophthalmol Vis Sci 26:741–750
- Sjostrand J, Anderson C (1986) Micropsia and metamorphopsia in the re-attached macula following retinal detachment. Acta Ophthalmol (Copenh) 64:425–432 CrossRef
- Ugarte M, Williamson TH (2005) Aniseikonia associated with epiretinal membranes. Br J Ophthalmol 89:1575–1579 CrossRef
- Tewari HK, Wagh VB, Sony P, Venkatesh P, Singh R (2004) Macular thickness evaluation using the optical coherence tomography in normal Indian eyes. Indian J Ophthalmol 52:199–204
- Wang Y, Li SY, Zhu M, et al (2005) Metamorphopsia after successful retinal detachment surgery: an optical coherence tomography study. Acta Ophthalmol Scand 83:168–171 CrossRef
- Horizontal and vertical micropsia following macula-off rhegmatogenous retinal-detachment surgical repair
Graefe's Archive for Clinical and Experimental Ophthalmology
Volume 244, Issue 11 , pp 1545-1548
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