The effect of hemodialysis on intraocular pressure

Ayse Ebru Bahadir Kilavuzoglu1, Gurkan Yurteri2, Nurgul Guven3

  • 1Department of Ophthalmology, Acibadem University School of Medicine, Istanbul, Turkey.

Insights

Hemodialysis (HD) significantly reduces intraocular pressure (IOP) in patients with end-stage renal disease. This study observed a decrease in IOP during HD, correlating with changes in serum osmolality and blood urea nitrogen.

Area of Science:

  • Nephrology
  • Ophthalmology
  • Clinical Medicine

Background:

  • The impact of hemodialysis (HD) on intraocular pressure (IOP) lacks consistent findings, yet is crucial for managing glaucoma patients with renal failure.
  • Understanding HD's effects on IOP is vital for clinicians overseeing renal failure patients.

Purpose of the Study:

  • To investigate the effects of hemodialysis on intraocular pressure (IOP) in patients diagnosed with end-stage renal disease.

Main Methods:

  • A prospective study involving 106 patients undergoing outpatient hemodialysis.
  • Measurements included serum osmolality, blood urea nitrogen, blood glucose, bicarbonate, hematocrit, blood pressure, and IOP at various stages of HD.
  • Patient medical and ophthalmologic histories were documented.

Main Results:

  • Intraocular pressure (IOP) showed a significant decrease from pre-HD (16.71 ±2.51 mm Hg) to end-HD (15.52 ±3.18 mm Hg) and post-HD (15.23 ±2.73 mm Hg).
  • Hemodialysis led to significant changes in serum osmolality, blood urea nitrogen, blood glucose, bicarbonate, and hematocrit levels.
  • A positive correlation was found between the change in IOP and the changes in serum osmolality and blood urea nitrogen at the end of HD.

Conclusions:

  • Intraocular pressure (IOP) significantly decreases during hemodialysis.
  • Further research is recommended to explore how blood parameter changes and ocular perfusion pressure influence IOP and optic nerve perfusion during HD.
Abstract

Related Concept Videos

Hemodialysis I: Introduction01:25

Hemodialysis I: Introduction

Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
1.9K
Hemodialysis II: Procedure and Complications01:24

Hemodialysis II: Procedure and Complications

DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
970
Hemodialysis III: Nursing Management01:25

Hemodialysis III: Nursing Management

The nursing management of a patient undergoing hemodialysis includes several critical steps, starting with a thorough assessment before the procedure.Before the Hemodialysis ProcedureFirst, record the patient's vital signs—blood pressure, heart rate, respiratory rate, and temperature—to establish a baseline. This baseline is essential for detecting conditions such as hypotension that could impact the patient's response to dialysis. Document the patient's pre-dialysis weight, as this...
991
Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis01:30

Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis

Patients with end-stage renal disease (ESRD) or those experiencing drug overdose often require extracorporeal methods to eliminate accumulated drugs and metabolites. Hemoperfusion, hemofiltration, and dialysis are the primary techniques to rapidly remove harmful substances without disrupting the patient's fluid and electrolyte balance. For those with compromised renal function, dosage adjustments of concurrent medications may be necessary during extracorporeal drug removal.Dialysis is a process...
553
Vapor Pressure02:34

Vapor Pressure

When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules move randomly about, they will occasionally collide with the surface of the condensed phase, and in some cases, these collisions will result in the molecules re-entering the condensed phase. The change from the gas phase to the liquid is called condensation. When the rate of condensation becomes equal to the rate of vaporization, neither the amount of the liquid nor the amount of the vapor...
41.1K
Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer02:57

Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer

Gas pressure is caused by force exerted by gas molecules colliding with the surfaces of objects. Although the force of each collision is very small, any surface of an appreciable area experiences a large number of collisions in a short time, which can result in high pressure.
43.7K