Chandna Lab (SEELAB)
Our laboratory investigates mechanisms of normal and abnormal vision and ocular motility in adults and children with special emphasis on neurotypicals, strabismus, amblyopia, cerebral visual impairment, and acquired brain injury. We use visual electrophysiology/EEG methods and measures of eye movements, accommodation with eye trackers, and infrared photorefractor. There is a strong emphasis on translational research in infants and children. We investigate globally common eye diseases in children and in adults associated with long-tem visual loss and morbidity with high socioeconomic costs and impacts. Our aim is to improve detection, diagnosis, treatment and outcomes in childhood eye disease through rigorous scientific research.
Use of non-invasive, quantitative methods, including: low-channel and high-density EEG steady-state visual evoked potentials (SSVEP); eye tracking and photorefraction; and qualitative methods in correlation with clinical findings:
- Studying mechanisms of visual function loss in amblyopia and strabismus
- Exploring low, mid and higher visual function deficits (HVFDs) in children with mild to moderate cerebral visual impairment (CVI)
- Developing applications for visual assessment and training in babies and young children.
- Studying mechanisms of vergence and accommodation in strabismus and other clinical conditions such as mild traumatic brain injury (mTBI).
- Investigating role ocular dominance, sensor and motor, in oculomotor stability.
- Reading studies wih simultaneous messures of oculomotor control and accommodaton..
- Comparing monocular and binocular sensory and motor functions
If you are interested in being a participant or wish to know more about our work, please get in touch with us at email@example.com
We are especially interested in the following eye conditions:
- Strabismus (misaligned eyes) since childhood
- Anisometropia (a significant difference in eyeglass prescription between the two eyes) since childhood
- Amblyopia (poor vision in one or both eyes since childhood often associated with strabismus and anisometropia)
- Cataract in childhood
- Loss of one eye in childhood
Cerebral visual impairment often affects higher level visual function (HVF); for example, spatial attention, motion perception, divided attention, etc.
There are many factors that can impair reading in CVI including, but not limited to, (i) increased crowding (ii) simultagnosia and (iii) abnormal eye movements.