[Intraocular pressure decrease after manual small incision cataract surgery].
OBJECTIVE
We decided to evaluate the decrease in intraocular pressure six months after cataract surgery.


METHODS
We evaluated patients' IOP using an applanation tonometer. The patients then underwent cataract surgery. Six months after cataract surgery, we reevaluated the IOP by the same method, and we determined the post-operative change.


RESULTS
Among the 147 operated eyes, 123 eyes or 83.67% exhibited a decrease in IOP. The mean preoperative IOP for the operative eye was 15.61±4.5mmHg; the mean post-operative IOP was 12.57±3.5mmHg; the mean IOP decrease after surgery was 3.16±4mmHg, for a mean decrease of 20%. This decrease is statistically significant, P<001. The decrease in IOP varies proportionally to the initial IOP. In glaucomatous patients, the mean preoperative IOP was 23.16±5.68mmHg and mean post-operative IOP was 14.5±2.7mmHg, a decrease of 37.39%.


CONCLUSIONS
The decrease in IOP after cataract surgery was generally moderate. However, this IOP decreased proportionally to the initial IOP, thus giving significant decreases for higher IOPs. This decrease in IOP, well known after phacoemulsification, was also obtained after Manual Small Incision Cataract Surgery, a surgical technique which is increasingly employed in developing countries.
Service d'ophtalmologie, centre hospitalier et universitaire de Brazzaville (CHU-B), 13, avenue Auxence-Ikonga, BP 32, Brazzaville, Congo. Electronic address: fredygeraud@laposte.net.
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Nganga Ngabou
Service d'ophtalmologie, centre hospitalier et universitaire de Brazzaville (CHU-B), 13, avenue Auxence-Ikonga, BP 32, Brazzaville, Congo.
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Makita
Clinique Ophthalmology, 204, rue Mayombe, plateaux des 15 ans, Brazzaville, Congo.
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Ndalla
Clinique Ophthalmology, 204, rue Mayombe, plateaux des 15 ans, Brazzaville, Congo.
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Nkokolo
Hôpital central des armées, avenue de la Deuxième-division-blindée, Camps 15-août, Brazzaville, BP 864, Brazzaville, Congo.
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Madzou
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002386:Cataract / Q000503:physiopathology* / Q000628:therapy; D002387:Cataract Extraction / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D005901:Glaucoma / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D000072836:Surgical Wound / Q000473:pathology*; D014065:Tonometry, Ocular
Cataract Surgery; Cataracte; Chirurgie manuelle; Glaucoma; Glaucome; Incision; Intraocular pressure; Manual small incision; Pression intraoculaire