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Refractive error characteristics and influence on ocular parameters in patients with unilateral congenital ptosis

Yingli Liu1, Tingting Chen1, Jingwen Huang1

  • 1Department of Ophthalmology, First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan 2nd Road, Yuexiu District, Guangzhou, Guangdong Province, 510080, P. R. China.

BMC Ophthalmology
|July 2, 2022
PubMed

Insights

Congenital ptosis affects ocular parameters, leading to thicker, flatter corneas and potentially lower visual acuity in affected eyes. This study compared these differences in unilateral cases.

Area of Science:

  • Ophthalmology
  • Ocular Biometry
  • Refractive Error

Background:

  • Unilateral congenital ptosis can impact visual development and ocular health.
  • Understanding ocular parameter differences is crucial for managing ptosis patients.

Purpose of the Study:

  • To investigate differences in refractive status and ocular parameters between ptotic and fellow eyes in unilateral congenital ptosis.
  • To analyze the influence of congenital ptosis on corneal thickness, curvature, and visual acuity.

Main Methods:

  • Thirty patients with unilateral congenital ptosis underwent comprehensive refractive and ocular biometric examinations.
  • Measurements included axial length, central corneal thickness, anterior chamber depth, and keratometry using an IOL Master 700.
  • Statistical analysis compared parameters between ptotic and fellow eyes.

Main Results:

  • Ptotic eyes exhibited lower best-corrected visual acuity (BCVA) and a higher incidence of amblyopia.
  • Central corneal thickness (CCT) was significantly greater in ptotic eyes.
  • Corneas in ptotic eyes were flatter, with lower K1 and Km values, while axial length showed no significant difference.

Conclusions:

  • Unilateral congenital ptosis is associated with significant changes in ocular parameters, notably a thicker and flatter cornea.
  • Ptotic eyes may present with reduced BCVA and an increased risk of amblyopia.
  • These findings highlight the importance of monitoring ocular health in patients with congenital ptosis.
Abstract

Keywords:
Congenital ptosisIOL master700Ocular parametersRefractive error

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