SavedAdd your journal

Journals / Glokom Katarakt / 2011 / Cilt: 6 - Sayı: 4

Relation between lens thickness and ıntraocular pressure change after phacoemulsification

Lens kalınlığının fakoemülsifikasyondan sonraki göz içi basınç değişimiyle ilişkisi

Sılay CANTÜRK UĞURBAŞ
Hacı Murat SAĞDIK
Sinan ÇALIŞKAN
Atilla ALPAY
Suat Hayri UĞURBAŞ
Pages
219–222
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Conclusion: In cataractous eyes without glaucoma phacoemulsification cataract surgery induces a small but consistent decrease in IOP, however, the decrease in IOP was found to have no association with lens thickness.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Purpose: To investigate relationship between preoperative lens thickness and postoperative intraocular pressure change after phacoemulsification surgery.
📊
Key Findings & Data:Lens thickness was measured preoperatively with A-mode ultrasound and intraocular pressure (IOP) was measured preoperatively, postoperatively at 1st week, 1st month, 3rd month, and 6th month with Goldmann applanation tonometry.
💡
Conclusion & Impact:Conclusion: In cataractous eyes without glaucoma phacoemulsification cataract surgery induces a small but consistent decrease in IOP, however, the decrease in IOP was found to have no association with lens thickness.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Purpose: To investigate relationship between preoperative lens thickness and postoperative intraocular pressure change after phacoemulsification surgery. Materials and Methods: Patients undergoing phacoemulsification surgery are prospectively evaluated. Lens thickness was measured preoperatively with A-mode ultrasound and intraocular pressure (IOP) was measured preoperatively, postoperatively at 1st week, 1st month, 3rd month, and 6th month with Goldmann applanation tonometry. Preoperative lens thickness and postoperative IOP values were analyzed with Spearman rank correlation test. Preoperative and postoperative IOP values compared with Wilcoxon paired samples t-test. Significance of IOP changes occuring up to 6th month after surgery was tested using the Friedman test. Results: Sixty-eight eyes of 64 patients underwent uncomplicated phacoemulsification surgery. The patients' age ranged between 50 to 85 years (mean: 67±9) and lens thickness measurements were in the range of 3.03- 4.80 mm (mean 4.09±0.44 mm). Mean preoperative IOP was 15.79±2.74 mmHg. IOP measurents postoperatively were 12.07±2.46 mmHg in the 1st week, 11.62±2.15 mmHg in the 1st month, 13.07±2.30 mmHg in the 3rd month, and 13.66±2.34 mmHg in the 6th month (p <0.01). The correlation between mean lens thickness and mean postoperative IOP change on the first week, 1st month, 3rd month, and 6th month was found to be insignificant (r=- 0.087, r=-0.087, r=0.98,and r=0.157 respectively, p>0.05 for all ). Conclusion: In cataractous eyes without glaucoma phacoemulsification cataract surgery induces a small but consistent decrease in IOP, however, the decrease in IOP was found to have no association with lens thickness.

Özet

Gereç ve Yöntem: Fakoemülsifikasyon ile katarakt operasyonu geçiren ve ameliyat sonrası göz içi basıncı normal olan olgular geriye dönük olarak değerlendirildi. Lens kalınlıkları A-mod ultrasonografi ile GİB ölçümleri Goldmann aplanasyon tonometresi ile ölçüldü. GİB ölçümleri ameliyat sonrası 1. hafta, 1. ay, 3. ay ve 6. ayda tekrarlandı. Ortalama lens kalınlığı ile ameliyat öncesi GİB ile ameliyat sonrası 1. hafta, 1. ay, 3. ay ve 6. aydaki GİB değişimi Spearman korelasyon analizi ile değerlendirildi. Ameliyat öncesi GİB ile ameliyat sonrası GİB'nı, Wilcoxon eşleştirilmiş iki örnek testi kullanılarak araştırıldı. Ameliyat öncesi GİB'nı ile ameliyat sonrası 6. ay'a kadar olan zamandaki GİB arasındaki değişim Friedman testi ile değerlendirildi. Bulgular: Fakoemülsifikasyon yöntemi ile katarakt cerrahisi uygulanan 64 hastanın 68 gözü çalışmaya alındı. Hastaların yaşları 50 ile 85 arasında değişmekteydi (ortalama 67±9 yıl). Ortalama lens kalınlığı ölçümü 4.09±0.44 mm (değişkenlik aralığı 3.03- 4.80 mm) bulundu. Ameliyat öncesi GİB ortalaması 15.79±2.74 mmHg, ameliyat sonrası 1. hafta GİB ortalaması 12.07±2.46 mmHg, ameliyat sonrası 1. ay GİB ortalaması 11.62±2.15 mmHg, ameliyat sonrası 3. ay GİB ortalaması 13.07±2.30 mmHg, ameliyat sonrası 6. ay GİB ortalaması 13.66±2.34 mmHg olarak ölçüldü (p 0.05 ). Sonuç: Glokomsuz kataraktlı hasta grubunda fakoemülsifikasyon katarakt cerrahisi sonrasında GİB'nda küçük ama anlamlı düşüş gözlendi ancak izlenen GİB düşüklüğünün lens kalınlığı ile ilişkili olmadığı bulundu.

🔖

Cite This Article

UĞURBAŞ, S. C., SAĞDIK, H. M., ÇALIŞKAN, S., ALPAY, A., UĞURBAŞ, S. H. (2011). Relation between lens thickness and ıntraocular pressure change after phacoemulsification. Glokom Katarakt, Cilt: 6 - Sayı: 4, 219–222. https://ajindex.com/articles/226499

References (14)

  1. Wishart PK, Atkinson PL.: Extracapsular cataract extraction and posterior chamber lens implantation in patients with primary chronic angle-closure glaucoma: effect on intraocular pressure control. Eye. 1989;3:706-712
  2. Handa J, Henry JC, Krupin T, et al.: Extracapsular cataract extraction with posterior chamber lens implantation in patients with glaucoma. Arch Ophthalmol. 1987;105:765-769
  3. Cinotti DJ, Fiore PM, Maltzman BA, et al.: Control of intraocular pressure in glaucomatous eyes after extracapsular cataract extraction with intraocular lens implantation. J Cataract Refract Surg. 1988;14:650-653
  4. Kim DD, Doyle JW, Smith MF.: Intraocular pressure reduction following phacoemulsification cataract extraction with posterior chamber lens implantation in glaucoma patients. Ophthalmic Surg Lasers. 1999;30:37-40
  5. Issa SA, Pacheco J, Mahmood U, et al.: A novel index for predicting intraocular pressure reduction following cataract surgery. Br J Ophthalmol. 2005;89:543-546
  6. Hayashi K, Hayashi H, Nakao F, et al.: Changes in anterior chamber angle width and depth after intraocular lens implantation in eyes with glaucoma. Ophthalmology. 2000;107:698-703
  7. Irak-Dersu I, Nilson C, Zabriskie N, et al.: Intraocular pressure change after temporal clear corneal phacoemulsification in normal eyes. Acta Ophthalmol (Copenh). 2010;88:131-134
  8. Meyer MA, Savitt ML, Kopitas E.: The effect of phacoemulsification on aqueous outflow facility. Ophthalmology. 1997;104:1221-7
  9. IOL Master with Software Version 3.0 [Internet].
  10. Shingleton BJ, Pasternack JJ, Hung JW, et al.: Three and five year changes in intraocular pressures after clear corneal phacoemulsification in open angle glaucoma patients, glaucoma suspects, and normal patients. J Glaucoma. 2006;15:494-498
  11. Jahn CE.: Reduced intraocular pressure after phacoemulsification and posterior chamber intraocular lens implantation. J Cataract Refract Surg. 1997;23:1260-1264
  12. Mathalone N, Hyams M, Neiman S, et al.: Long-term intraocular pressure control after clear corneal phacoemulsification in glaucoma patients. J Cataract Refract Surg. 2005;31:479-483
  13. Poley BJ, Lindstrom RL, Samuelson TW.: Long-term effects of phacoemulsification with intraocular lens implantation in normotensive and ocular hypertensive eyes. J Cataract Refract Surg. 2008;34:735-742
  14. Altan-Yaycioglu R, Canan H, Pelit A, et al.: Intrao