Limits...
Manual cataract extraction via a subconjunctival limbus oblique incision for mature cataracts.

Yang J, Lai P, Wu D, Long Z - Indian J Ophthalmol (2014)

Bottom Line: Intraoperative complications included hyphema in 3 eyes (2.7%), iridodialysis in 2 eyes 1.8%), posterior capsular rupture and zonular dialysis in 2 eyes (1.8%).At the 3-month follow-up, 91% patients achieved a best-corrected visual acuity of 20/20 or better, the mean of surgically induced astigmatism was -0.62 ± 0.41 Diopters and endothelial cell loss was 4.2%.Average surgical time was 3.75 min per case.

View Article: PubMed Central - PubMed

Affiliation: Jiangxi Eye Center, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi Province, China.

ABSTRACT

Aims: To report the technique and outcomes of sutureless manual cataract extraction via a subconjunctival limbus oblique incision for mature cataracts.

Materials and methods: This retrospective study comprised of 112 eyes of 83 patients with mature cataract who all had manual cataract extraction via a subconjunctival limbus oblique incision. A transconjunctival tunnel is fashioned with a 3.0 mm keratome, 0.5 mm behind the limbal vascular arcades. A limbal tunnel, with a transverse extent of 9 mm in the cornea and 7.0 mm in the limbus, is created beneath the conjunctival/Tenon's tissue using an angled bevel-up crescent blade. Outcome measures included visual acuity, intraoperative complications, surgically induced astigmatism, endothelial cell loss rate and surgery time.

Results: Self-sealing wound was achieved in 112 eyes (98.2%). The nucleus was delivered in whole in 108 eyes (96.4%). Intraoperative complications included hyphema in 3 eyes (2.7%), iridodialysis in 2 eyes 1.8%), posterior capsular rupture and zonular dialysis in 2 eyes (1.8%). At the 3-month follow-up, 91% patients achieved a best-corrected visual acuity of 20/20 or better, the mean of surgically induced astigmatism was -0.62 ± 0.41 Diopters and endothelial cell loss was 4.2%. Average surgical time was 3.75 min per case.

Conclusion: This subconjunctival limbus oblique incision has the potential to serve as safe and effective technique for mature cataracts.

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Related in: MedlinePlus

A composite photograph of making a subconjunctival limbus oblique incision, (a) A paracentesis is made with a 15° blade, (b) The 3.0 mm keratome is placed parallel to the posterior sclera, 0.5 mm behind the conjunctival-limbal insertion, 90° to the right side of the paracentesis, (c) A 3.0 mm transconjunctival sclerocorneal tunnel is fashioned with a keratome, (d) The dissected pocket is extended temporally, (e) The pocket is extended nasally up to the limbus, (f) An inverted “L” conjunctival pocket with an opening of 5 mm is created
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Figure 1: A composite photograph of making a subconjunctival limbus oblique incision, (a) A paracentesis is made with a 15° blade, (b) The 3.0 mm keratome is placed parallel to the posterior sclera, 0.5 mm behind the conjunctival-limbal insertion, 90° to the right side of the paracentesis, (c) A 3.0 mm transconjunctival sclerocorneal tunnel is fashioned with a keratome, (d) The dissected pocket is extended temporally, (e) The pocket is extended nasally up to the limbus, (f) An inverted “L” conjunctival pocket with an opening of 5 mm is created

Mentions: A 1.0-mm paracentesis is made at 2 o’clock in the limbus with a 15° blade while the eye is stabilized and pushed downward by grasping in the limbus with a 0.12 toothed forceps. [Fig. 1a]. In the next steps, the eye is stabilized by grasping in the paracentesis.


Manual cataract extraction via a subconjunctival limbus oblique incision for mature cataracts.

Yang J, Lai P, Wu D, Long Z - Indian J Ophthalmol (2014)

A composite photograph of making a subconjunctival limbus oblique incision, (a) A paracentesis is made with a 15° blade, (b) The 3.0 mm keratome is placed parallel to the posterior sclera, 0.5 mm behind the conjunctival-limbal insertion, 90° to the right side of the paracentesis, (c) A 3.0 mm transconjunctival sclerocorneal tunnel is fashioned with a keratome, (d) The dissected pocket is extended temporally, (e) The pocket is extended nasally up to the limbus, (f) An inverted “L” conjunctival pocket with an opening of 5 mm is created
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4061661&req=5

Figure 1: A composite photograph of making a subconjunctival limbus oblique incision, (a) A paracentesis is made with a 15° blade, (b) The 3.0 mm keratome is placed parallel to the posterior sclera, 0.5 mm behind the conjunctival-limbal insertion, 90° to the right side of the paracentesis, (c) A 3.0 mm transconjunctival sclerocorneal tunnel is fashioned with a keratome, (d) The dissected pocket is extended temporally, (e) The pocket is extended nasally up to the limbus, (f) An inverted “L” conjunctival pocket with an opening of 5 mm is created
Mentions: A 1.0-mm paracentesis is made at 2 o’clock in the limbus with a 15° blade while the eye is stabilized and pushed downward by grasping in the limbus with a 0.12 toothed forceps. [Fig. 1a]. In the next steps, the eye is stabilized by grasping in the paracentesis.

Bottom Line: Intraoperative complications included hyphema in 3 eyes (2.7%), iridodialysis in 2 eyes 1.8%), posterior capsular rupture and zonular dialysis in 2 eyes (1.8%).At the 3-month follow-up, 91% patients achieved a best-corrected visual acuity of 20/20 or better, the mean of surgically induced astigmatism was -0.62 ± 0.41 Diopters and endothelial cell loss was 4.2%.Average surgical time was 3.75 min per case.

View Article: PubMed Central - PubMed

Affiliation: Jiangxi Eye Center, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi Province, China.

ABSTRACT

Aims: To report the technique and outcomes of sutureless manual cataract extraction via a subconjunctival limbus oblique incision for mature cataracts.

Materials and methods: This retrospective study comprised of 112 eyes of 83 patients with mature cataract who all had manual cataract extraction via a subconjunctival limbus oblique incision. A transconjunctival tunnel is fashioned with a 3.0 mm keratome, 0.5 mm behind the limbal vascular arcades. A limbal tunnel, with a transverse extent of 9 mm in the cornea and 7.0 mm in the limbus, is created beneath the conjunctival/Tenon's tissue using an angled bevel-up crescent blade. Outcome measures included visual acuity, intraoperative complications, surgically induced astigmatism, endothelial cell loss rate and surgery time.

Results: Self-sealing wound was achieved in 112 eyes (98.2%). The nucleus was delivered in whole in 108 eyes (96.4%). Intraoperative complications included hyphema in 3 eyes (2.7%), iridodialysis in 2 eyes 1.8%), posterior capsular rupture and zonular dialysis in 2 eyes (1.8%). At the 3-month follow-up, 91% patients achieved a best-corrected visual acuity of 20/20 or better, the mean of surgically induced astigmatism was -0.62 ± 0.41 Diopters and endothelial cell loss was 4.2%. Average surgical time was 3.75 min per case.

Conclusion: This subconjunctival limbus oblique incision has the potential to serve as safe and effective technique for mature cataracts.

Show MeSH
Related in: MedlinePlus