Mouse Models of Ocular Albinism in the MICRON Literature

About the MICRON Research Literature

These research pages organize published studies using MICRON imaging systems by animal species and the disease or condition investigated.

All publication counts and figures reflect the complete indexed research collection.

Explore related studies through the MICRON Research Hubs or search the complete publication collection in the reSEARCH portal.

Understanding Ocular Albinism

Albinism disrupts ocular pigmentation through defects in melanin production or melanosome biology. Its major ocular consequences are developmental rather than degenerative:

• Foveal hypoplasia
• Iris transillumination
• Reduced pigmentation of the retinal pigment epithelium
• Nystagmus
• Reduced acuity
• Misrouting of retinal ganglion cell axons at the optic chiasm, where an abnormally large share of fibers crosses to the opposite side

Ocular Albinism in Experimental Research

A mouse divides that list. In tyrosinase-deficient mouse models the pigment defect itself is present, and so are its consequences for the retinal pigment epithelium and for the way the retina develops, which is why those lines are used to ask what melanin contributes to building a retina and to test whether supplying what pigment supplies can recover retinal structure and function.

The chiasmal misrouting is present too and can be measured, though it is a question about the visual pathway rather than about the retina.

Foveal hypoplasia cannot be modeled, because a mouse has no fovea to be hypoplastic, and it is closely tied to the reduced acuity people with albinism live with.

What a mouse can report on is what the loss of melanin does to the retina, read structurally and electrophysiologically, rather than the central retinal architecture the human deficit is organized around.

Mouse Models of Ocular Albinism

The mouse carries most of this work.

Transgenic and knockout lines allow a pathway to be removed or overexpressed, and cost, availability, short generation time and a large body of background data reinforce the choice.

A genetic manipulation constrains rather than isolates a mechanism: developmental compensation and pleiotropy remain possible.

Published MICRON Research: Ocular Albinism in Mice

This page lists 4 papers from the MICRON literature, published 2019 to 2025, that study ocular albinism in mice.

Of these publications:

• 4 studies used mice as the primary ocular albinism disease model.

Scope of the literature collection: Publication counts reflect studies identified and indexed in the MICRON research corpus. This collection is not intended to represent an exhaustive review of all published ocular albinism research.

Which imaging and experimental techniques are used in these studies?

Technique counts are paper-level co-occurrences and do not necessarily indicate that a technique was applied to the focal species or focal disease model.

Capabilities and Limitations of Imaging Techniques

A summary of what each imaging technique listed above can measure, the information it provides, and its limitations in research applications.

Electroretinography

Records the retina's electrical response to light, giving component-sensitive information about outer- and inner-retinal function. It measures function directly, which no structural method does. Full-field ERG sums across the whole retina, so a small lesion can leave the trace unchanged; focal and multifocal variants trade signal amplitude for spatial resolution.

Optical Coherence Tomography

Optical coherence tomography provides high-resolution, cross-sectional images of ocular tissues in the living eye, allowing researchers to visualize structures at different depths. OCT is particularly useful for measuring tissue thickness, identifying structural abnormalities, and assessing the location and extent of tissue changes.

As a non-invasive imaging technique, OCT enables repeated measurements in the same eye over time, supporting longitudinal studies of disease progression and treatment response. Although OCT provides detailed structural information, it does not directly measure cellular activity or visual function. Tissue that appears structurally normal may still have functional abnormalities, making OCT a valuable companion to functional assessments such as electroretinography (ERG).

Topical Ophthalmic Drug Delivery

A compound applied as drops to the ocular surface. It is non-invasive and repeatable, so it supports frequent dosing without a procedure for each dose. What the route has to establish depends on the target: for an ocular-surface target, residence time and penetration into the surface tissue are the main barriers; for an intraocular anterior-segment target, the compound must cross ocular-surface and corneal or conjunctival barriers and reach an intraocular concentration sufficient for the experiment; for a posterior-segment target, additional ocular barriers separate the surface from the target and posterior-segment exposure is harder to establish.

Which MICRON systems and add-ons appear?

Which strains and genetic lines are used?

Which other species appear alongside?

What other conditions are recorded on the same papers?

Which MICRON configurations appear in this work?

Configurations recorded in these papers, and the techniques recorded alongside them.

The papers

Browse all hubs at MICRON Research Hubs. The full corpus is searchable in the reSEARCH portal.