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Prospective randomized comparative study of macular thickness following phacoemulsification and manual small incision cataract surgery
Author(s) -
Ghosh Sambuddha,
Roy Indranil,
Biswas Pradyot N.,
Maji Dipankar,
Mondal Lakshmi K.,
Mukhopadhyay Subhalakshmi,
Bhaduri Gautam
Publication year - 2010
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2010.01896.x
Subject(s) - phacoemulsification , medicine , ophthalmology , cataract surgery , prospective cohort study , randomization , randomized controlled trial , surgery , neuro ophthalmology , visual acuity , glaucoma
. Purpose: To compare macular thickness following uncomplicated phacoemulsification with foldable acrylic lens and manual small incision cataract surgery (MSICS) with non‐foldable polymethyl methacrylate (PMMA) lens implantation. Methods: Prospective study was carried out with one eye each of 224 patients with senile cataract randomized into two groups, phacoemulsification and MSICS, by simple 1:1 randomization. Following surgery by either of the two methods, macular thickness was measured by optical coherence tomography (OCT) on the 1st, 7th, 42nd and 180th postoperative day. Main outcome measure was postoperative macular thickness. Results: On the first postoperative day, central subfield mean thickness (CSMT) in MSICS group was 192.8 ± 17.9 μm and that in phacoemulsification group was 192.1 ± 27.4 μm, with no significant difference (p = 0.12). On the 7th day, CSMT in MSICS group (198.9 ± 21.4 μm) was significantly (p = 0.04) more than that in phacoemulsification group (193.1 ± 19.3 μm). On the 42nd day, CSMT in MSICS group was 207.8 ± 26.3 μm and that in phacoemulsification group was 198.3 ± 23 μm, the difference being significant (p = 0.007). Clinically macular oedema was not diagnosed in any of the patients at any visit. The increase in macular thickness was sub‐clinical and did not affect final visual outcome in any patient. Conclusion: In spite of the greater theoretical risk of increased postoperative inflammation following MSICS, there was no evidence of cystoid macular oedema, either clinically or on OCT. However, chance of sub‐clinical increase in CSMT was more following MSICS compared to phacoemulsification.