Japanese journal of ophthalmology · 2020
Effects of cataract surgery on symptoms and findings of dry eye in subjects with and without preexisting dry eye.
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Shimabukuro Mikiko, Maeda Naoyuki, Koh Shizuka, Abe Keiichi, Kobayashi Reiko, Nishida Kohji
Аннотация
PURPOSE: To compare dry eye symptoms and findings in post cataract surgery eyes' with and without preexisting dry eye.
STUDY DESIGN: Prospective, observational case-control study.
METHODS: Sixty-seven eyes that had undergone cataract surgery were included; 48 were classified into group D (preexisting dry eye) and 19 into group N (no preexisting dry eye). No subjects received perioperative treatment for dry eye. We evaluated between-group differences in symptom scores, corrected distance visual acuity (CDVA), tear film breakup time (BUT), tear film breakup pattern (BUP), and ocular surface fluorescein staining scores, at 1 week, 1 month, and 3 months postoperatively.
RESULTS: Symptoms were unchanged in group N, but improved in group D (P < .001) postoperatively. CDVA was improved after surgery in both groups (P < .001). BUT was shorter preoperatively in group D than in group N although this difference was absent 1 month postoperatively. Fluorescein staining scores significantly increased at 1 month postoperatively in group N (P = .01), but did not change in group D. During the perioperative period, the predominant BUP was the random break pattern in both groups (≥ 85%). From 1 week to 3 months, dimple break patterns decreased in group D (P = .007), whereas spot break patterns increased (P = .01).
CONCLUSIONS: Cataract surgery has an influence on tear film stability and the ocular surface. There was either a transient improvement or worsening of ocular surface wettability in some patients without preexisting dry eye.
STUDY DESIGN: Prospective, observational case-control study.
METHODS: Sixty-seven eyes that had undergone cataract surgery were included; 48 were classified into group D (preexisting dry eye) and 19 into group N (no preexisting dry eye). No subjects received perioperative treatment for dry eye. We evaluated between-group differences in symptom scores, corrected distance visual acuity (CDVA), tear film breakup time (BUT), tear film breakup pattern (BUP), and ocular surface fluorescein staining scores, at 1 week, 1 month, and 3 months postoperatively.
RESULTS: Symptoms were unchanged in group N, but improved in group D (P < .001) postoperatively. CDVA was improved after surgery in both groups (P < .001). BUT was shorter preoperatively in group D than in group N although this difference was absent 1 month postoperatively. Fluorescein staining scores significantly increased at 1 month postoperatively in group N (P = .01), but did not change in group D. During the perioperative period, the predominant BUP was the random break pattern in both groups (≥ 85%). From 1 week to 3 months, dimple break patterns decreased in group D (P = .007), whereas spot break patterns increased (P = .01).
CONCLUSIONS: Cataract surgery has an influence on tear film stability and the ocular surface. There was either a transient improvement or worsening of ocular surface wettability in some patients without preexisting dry eye.