Objective: Gaining a better understanding of the effect of upper eyelid (UE) position on optical biometry and related parameters by evaluating patients before and after blepharoplasty and anterior levator resection (ALR), particularly 6 months post-operatively, as this period can be considered the optimal time frame for cataract surgeries. Material and Methods: Seventy patients with dermatochalasis and 40 patients with UE ptosis were included and 110 eyes were evaluated. Measurements were taken before and 6 months after the surgeries using a Lenstar optical biometer. Intraocular pressure (IOP), flattest keratometry, steepest keratometry (K2), mean keratometry (Km), axial length, pupil diameter, anterior chamber depth, lens thickness, corneal astigmatism (CA), and intra ocular lens (IOL) power calculations by using Sanders-Retzlaff-Kraff/Theoretical formula (SRK/T), SRK II, Haigis, Holladay 2, Hoffer Q, Barret II formulas were evaluated. Results: In both groups, postoperative measurements indicated an increase in IOP (p=0.001 for both). K2, Km, and CA values decreased in the ptosis group and IOL power calculations showed a significant increase (p<0.001, p<0.005 for all, respectively). In the dermatochalasis group, postoperative CA and K2 values demonstrated a significant decrease (p=0.001, p=0.011, respectively), however, no changes were noted in IOL power calculations. Conclusion: In summary, the study's results showed that while both blepharoplasty and ALR surgeries can impact the cornea's biometric properties, significant changes were specifically observed in ptosis patients post-operatively concerning IOL power measurements. This could imply that the degree of the UE drop can have a more significant or measurable impact on optical biometry.
Keywords: Dermatochalasis; intraocular lens power; keratometry; optical biometry; upper eyelid ptosis
Amaç: Bu çalışmanın amacı, blefaroplasti ve levator cerrahisi (LC) öncesi ve sonrası, özellikle katarakt ameliyatları için en ideal zaman dilimi olarak kabul edilen ameliyat sonrası altıncı ayda hastaları değerlendirerek, üst göz kapağı (ÜGK) pozisyonunun optik biyometri ve ilgili parametreler üzerindeki etkisinin daha iyi anlaşılmasını sağlamaktır. Gereç ve Yöntemler: ÜGK dermatoşalazisli 70 hasta ve pitozu olan 40 hasta çalışmaya dâhil edildi ve 110 göz değerlendirildi. Ölçümler ameliyatlardan önce ve 6 ay sonra Lenstar optik biyometri kullanılarak yapıldı. Göz içi basıncı (GİB), en düz keratometri, dik keratometri (K2), ortalama keratometri [mean keratometry (Km)], aksiyel uzunluk, pupil çapı, ön kamara derinliği, lens kalınlığı, korneal astigmatizm (KA) ve SRK/T, SRK II, Haigis, Holladay 2, Hoffer Q, Barret II formülleri kullanılarak göz içi lens (GİL) gücü hesaplamaları değerlendirildi. Bulgular: Her iki grupta da postoperatif ölçümlerde GİB'de artış görüldü (Her ikisi için de p=0,001). K2, Km ve KA değerleri ptozis grubunda azaldı ve GİL gücü hesaplamalarında anlamlı artış görüldü (Her ikisi için sırasıyla p<0,001, p<0,005). Dermatoşalazis grubunda postoperatif KA ve K2 değerleri anlamlı azalma gösterdi (sırasıyla p=0,001, p=0,011), ancak GİL gücü hesaplamalarında herhangi bir değişiklik görülmedi. Sonuç: Sonuçlar hem blefaroplasti hem de LC sonrası korneanın ve GİL özelliklerini etkileyebileceğini, ancak özellikle ptozis hastalarında ameliyat sonrası GİL ölçümleri ile ilgili olarak önemli değişiklikler gözlemlendiğini göstermiştir. Bu, ÜGK'nin düşüklük derecesinin optik biyometri üzerinde daha önemli veya saptanabilir bir etkiye sahip olabileceğini göstermektedir.
Anahtar Kelimeler: Dermatoşalazis; göz içi lens gücü; keratometri; optik biyometri; üst göz kapağı pitozu
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